Calendario de conferencias y eventos

101 - 200 de un total de 1707



Pages

07/03/2023 - 12:30
Sub-milliarcsecond astronomy with Imaging Atmospheric Cherenkov Telescopes
The angular size of a star is a critical factor in determining its basic properties. Together with the distance, it provides the physical diameter of the star which can be used to yield luminosity and mass estimates. Direct measurement of stellar angular diameters is difficult: at interstellar distances stars are generally too small to resolve by any individual imaging telescope. This fundamental limitation can be overcome by several methods...
Dr. Tarek Hassan
21/04/2023 - 12:30
Gamma rays as cosmic ray tracers: how can CTAO contribute to the cosmic ray physics
Gamma-ray emission produced by interactions of cosmic rays with interstellar matter and radiation fields is a probe of non-thermal particles in galaxies. After decades of instrumental improvements in the field of gamma-ray astronomy, different scales and environments are now accessible and their gamma-ray observations reveal several properties of cosmic rays, especially in our Galaxy. I will provide a short review of the status of the subject...
Roberta Zanin
23/03/2023 - 12:30
SO coloquio: Investigating the impact of quasar feedback on the central kiloparsecs of galaxies
Active galactic nuclei (AGN) feedback is the effect that nuclear activity produces in the interstellar and circumgalactic medium of galaxies. Different modes of AGN feedback, which can be broadly divided into radiative/quasar and kinetic/radio, are now considered key processes in the evolution of massive galaxies by regulating black hole and galaxy growth. Indeed, a wealth of observational evidence demonstrates that feedback from supermassive...
Dr. Cristina Ramos Almeida
16/02/2023 - 12:00
School visit
School visit
Sara Garcia.
16/03/2023 - 12:30
An observational study of massive star forming regions at radio wavelengths
In their early stages, massive stars have a profound impact on their hosting cloud as reflected by signposts like shocks, bars and shells of swept material resulting from prominent stellar winds, or photo-ionized (HII) regions produced by energetic irradiance. This activity must be taken into account in the study of the mechanism of formation of either massive stars or nearby lower mass companions affected by such harsh conditions. It is known...
Josep Maria Masqué
09/03/2023 - 12:30
When accretion is as vital as extreme: from massive young stars to binary black holes
Accretion is vital for understanding the properties of a number of astrophysical objects, including massive young stars and black holes. For the former, accretion drives the stellar mass growth and multiplicity through gas fragmentation. It also powers strong outflows that regulate the interstellar medium. For black holes, only accretion allows for electromagnetic detection. Hence, the multi-messenger astronomy, for which the loudest sources of...
Dr. Raphael Mignon-Risse
23/02/2023 - 19:00
Contaminación Lumínica: Cuando nuestras estrellas más cercanas no se ven entre ellas
Conferencia de divulgación sobre las consecuencias del exceso de iluminación artificial nocturna.
José Ramón Guzmán Alvarez
23/02/2023 - 12:30
ALMA: Planned Sensitivity Upgrades, and Molecular Gas Imaging of a z=0.376 HI-Detected Galaxy
This talk will cover two distinct topics in progress, one programmatic and the other science: I will first discuss the ALMA Wideband Sensitivity Upgrade (WSU), and then I'll talk about ALMA followup of the highest redshift HI detection in the COSMOS HI Large Extragalactic Survey (CHILES) made with the first 178 hours of observing. With regard to the WSU, the ALMA Project is embarking on a partner-wide initiative to at least double, and...
Dr. Jennifer Donovan Meyer
30/03/2023 - 12:30
Preparation and Asteroseismic exploitation of the PLATO Mission
Thanks to ultra-precise space missions, we are living an era of big scientific discoveries in the stellar and planetary physics fields. PLATO will capitalise on the developments of successful past missions such as CoRoT, Kepler/K2, TESS and CHEOPS that studied stars and their planetary systems. PLATO will detect and characterise terrestrial exoplanets at orbits up to the habitable zone of solar-type stars. Transit measurements and...
Dr. Javier Pascual
25/01/2023
VI Meeting of AGN Research in Spain in the Era of the New Observatories
Tras el éxito de las reuniones anteriores sobre AGNs convocadas en nuestro país, el IAA-CSIC acoge esta reunión, que permitirá revisar la comprensión actual en la investigación sobre AGNs
26/01/2023 - 19:00
El cambio climático. Una puesta al día
Revisamos el nuevo informe del Grupo Intergubernamental de Expertos sobre el Cambio Climático (IPCC)
Rainer Schödel
30/01/2023 - 12:30
SO Coloquio: Dirty Dancing: piercing the dusty environment of merging supermassive black holes
It is a posit of modern astrophysics that most massive galaxies host a super- massive black hole (millions to billions of times more massive than the Sun). These black holes affect the evolution of galaxies well beyond their gravitational sphere of influence (which does not extend wider than 1/1000th of the typical galaxy linear size). In turn, the evolution of galaxies affects the growth of black holes through, e.g., galaxy merging....
Matteo Guainazzi
15/12/2022 - 19:00
Los genes como recortables. La edición genética basada en la tecnología CRISPR
En el año 2012, un trabajo publicado en la revista Science demostró que la tecnología CRISPR podía ser usada de una manera precisa y eficiente en la edición del genoma de un ser vivo. Desde entonces, el método ha llevado a miles de laboratorios a utilizarlo en aplicaciones que van desde biomedicina hasta agricultura.
Francisco Martínez-Abarca
02/11/2022 - 04/11/2022
https://home.iaa.csic.es/fundcosmo22/
Granada
18/10/2022 - 21/10/2022
https://www.granadacongresos.com/severoochoa
Granada
09/09/2022 - 11/09/2022
https://iota-es.de/esop41/index.php
Granada
30/01/2023 - 01/02/2023
https://www.granadacongresos.com/agn2023
Granada
24/11/2022 - 19:00
Asteroides activos y la misión DART de defensa planetaria
Conferencia de divulgación sobre los asteroides activos, que muestran rasgos tanto de asteroide como de cometa
Fernando Moreno
12/01/2023 - 12:30
CARMENES-PLUS: a technical upgrade for CARMENES and the impact on its science
CARMENES is a dual (VIS: 550 to 950 nm; NIR: 950 to 1700 nm) high-resolution spectrograph installed at the 3.5 m telescope at the Calar Alto Observatory (CAHA, Almería, Spain). The NIR channel spectrograph uses the radial-velocity method for detecting exoplanets around low-mass stars. Thus, a high thermal stability is required in the NIR cooling system to achieve a high precision in radial velocities. The cooling system was originally conceived...
Roberto Varas González
25/05/2023 - 12:30
SO colloquio: To be black, or not?
Observational tests of strong field gravity are improving rapidly. This allows us to test whether the compact objects observed in the sky are truly black holes as described in general relativity or some other "exotic" objects. These tests, however, require exquisite theoretical modeling of black holes as well as their alternatives. This talk will discuss two such examples: the impact of the astrophysical environment on black holes and the...
Dr. Béatrice Bonga
24/11/2022 - 12:30
SO webloquio: The Milky Way Nuclear Star Cluster
The Milky Way nuclear star cluster (NSC) is located within the nuclear stellar disc (NSD) in the Galactic centre. The NSC and NSD are distinct structures of the Milky Way, but also connected to the larger Milky Way structures, e.g. via the inflow and outflow of gas, and the infall of star clusters. Our knowledge of the larger Milky Way structures, Galactic disc, bulge and halo, has expanded in recent years through surveys and dedicated missions...
Dr. Anja Feldmeier
07/11/2022 - 12:30
The ASTRI Mini-Array and its Science
The ASTRI Collaboration is building at the Teide Astronomical Observatory in Tenerife an array of 9 small Cherenkov telescopes capable of observing with good flux sensitivity, energy and angular resolution the gamma-ray sky above an energy threshold of several hundreds of GeV. The ASTRI telescopes adopt a dual-mirror Schwarzschild-Couder optical design. Entrapped amidst the two mirrors the ASTRI camera, based on silicon photon-multipliers...
Dr. Giacomo Bonnoli
29/11/2022 - 12:30
TARSIS: the Tetra-Armed IFU at Calar Alto designed for the CATARSIS galaxy cluster exploration
In this talk I will present the design of the Integral Field Unit TARSIS, recently selected to be the next generation multi-object spectrograph for the 3.5m telescope at Calar Alto. In addition, I will describe the scientific goals of CATARSIS, the galaxy cluster exploration that will be carried out in the first years of the operation of TARSIS.
Dr. Jorge Iglesias
15/11/2022 - 12:30
The effect of pre-processing on the stellar population content of early-type dwarf galaxies
According to the CDM model, galaxy clusters grow through the accretion of individual galaxies and galaxy groups. Thus, it is a true challenge to distinguish the possible role of the present-day host halo from that of previous ones, in the transformation of accreted galaxies. Dwarf early-type galaxies (dEs) are often regarded as statistically meaningful testbeds for investigating environmental effects mainly due to their high number density and...
Dr. Bahar Bidaran
13/10/2022
Congreso Severo Ochoa IAA: abordando las cuestiones clave en astrofísica desde Granada
El Instituto de Astrofísica de Andalucía (IAA-CSIC) organiza un encuentro con especialistas de todo el mundo sobre los problemas más actuales que afronta la astrofísica  
27/10/2022 - 19:00
La génesis de las constelaciones. Mitos y literatura en la astronomía griega
La esfera celeste se divide en la actualidad en 88 constelaciones. Son agrupaciones aparentes de estrellas que aparecen dibujadas sobre la esfera celeste, en un ejercicio intelectual que mucho tiene que ver con la cultura.  Cada civilización ha recreado las constelaciones según sus creencias, aunque las aceptadas por la Unión Astronómica Internacional se basan, sobre todo, en la Era de los Descubrimientos y en la tradición grecorromana....
David Barrado Navascués
15/09/2022
AstroSound 2022
El Instituto de Astrofísica de Andalucía es uno de los mayores centros de referencia en astrofísica y ciencias del espacio a nivel internacional. Además, destaca por su intensa actividad divulgadora; su Unidad de Cultura Científica es una de las más reconocidas de nuestro país, acercando la ciencia a la sociedad a través de formatos rompedores que han sido merecedores de diferentes reconocimientos a lo largo de los últimos años. ASTROSOUND...
19/12/2022 - 12:30
Fossil groups of galaxies: seeing the future looking at the past
The nature of fossil groups of galaxies has been debated for over more than 3 decades. This is in part because of the lack of deep multiwavelength data and also due to the low purity of samples selected using solely magnitude gap criteria. The initial results of a sample of bonafide fossil groups using X-ray/optical observations has clarified many of their characteristics, such as high central metal abundances and concentration measurements....
Dr. Renato Dupke
01/12/2022 - 12:30
SO Colloquio: Moving from high to extreme precision in air shower observations: From LOFAR to SKAO
Cosmic rays play an interesting role in understanding the most violent objects in the universe. These charged atomic particles reach energies orders of magnitudes higher than achievable in accelerators on Earth, which points towards an origin of the most extreme objects in the universe, with strong magnetic shocks and mass transfer. However, these sources are not firmly identified. Astrophysical interpretations are currently limited by the...
Dr. Anna Nelles
17/11/2022 - 12:30
SO colloquio: A conclusive test of the cold dark matter model
The ``Lambda cold dark matter'' (LCDM) cosmological model is one of the great achievements in Physics of the past thirty years. Theoretical predictions formulated in the 1980s turned out to agree remarkably well with measurements, performed decades later, of the galaxy distribution and the temperature structure of the cosmic microwave background radiation. Yet, these successes do not inform us directly about the nature of the dark matter. This...
Dr. Carlos Frenk
08/11/2022 - 12:30
The many “phases” of small bodies
Asteroids, comets, and trans-Neptunian objects are collectively known as small bodies. In a way, they are the debris left by the planetary formation in the Solar system, and as such, they carry a lot of information regarding the processes that shaped it. But, small bodies are by no means stationary objects: not only do they move across the sky, but their brightness also changes due to different mechanisms, from rotational variations due to...
Dr. Álvaro Alvarez-Candal
25/10/2022 - 12:30
SO Colloquio: Galactic Center: Radiation from black hole candidates and the dynamics of high velocity stars
We summarize recent research results on the radiation mechanism of the Super Massive Black Hole (SMBH) candidate SgrA* and ask the question if there are Intermediate Mass Black Hole (IMBH) candidates in the central stellar cluster. Furthermore we give an update on the most recent high velocity stars in the central arcsecond - that are closest to SgrA*. Here we concentrate on the high velocity star cluster dynamics and on the 4711+ stars with...
Prof. Andreas Eckart
26/09/2022 - 12:30
The EnVision mission to Venus: Discovering why our closest neighbour is so different
EnVision was selected as ESA’s 5th Medium-class mission in the Agency’s Cosmic Vision plan, targeting a launch in the early 2030s. The mission is a partnership between ESA and NASA. The primary goal is to provide a holistic view of Venus, from its inner core up to its upper atmosphere by a single mission, and will be the first mission of its kind. More specifically, EnVision will characterise Venus’ core and mantle structure, in order to study...
Dr. Anne Grete Straume
13/09/2022 - 12:30
SO Colloquio: Studies on the origins of our solar system
My goal in this colloquium is to apprehend globally the Solar System by describing a vast sample of small bodies, from Near Earth Asteroids to remote Trans-Neptunian Objects. This goes beyond projects that focused on certain populations only. The core of the talk is theoretical, with emphasis on inner structures and rings. Meanwhile, the stellar occultations by these objects will provide an exploratory route to characterize objects with widely...
Dr. Bruno Sicardy
29/06/2022
El Instituto de Astrofísica de Andalucía acoge el II Encuentro de Gestor@s de la alianza de centros Severo Ochoa y unidades María de Maeztu, SOMMa.
Este viernes 1 de julio tendrá lugar en el Instituto de Astrofísica de Andalucía (IAA-CSIC) el II Encuentro de Gestor@s de la alianza SOMMa. Esta alianza reúne a los Centros de Excelencia Severo Ochoa y Unidades de María de Maeztu acreditadas con este sello, que otorga el Ministerio de Ciencia e Innovación a aquellos centros y unidades de investigación que destacan por su relevancia e impacto a nivel internacional.
06/10/2022 - 12:30
Computational Intelligence in the Big Data Context
Computational Intelligence (CI) commonly refers to a variety of bio-inspired and/or human-like techniques that can be applied in optimisation, learning and modelling problems. Broadly speaking, CI comprises Artificial Neural Networks, Fuzzy Sets and Fuzzy Logic and Evolutionary Computation. In the era of big data, CI in conjunction with data mining techniques are expected to help uncover useful knowledge from big data as they are very well...
Dr. Isaac Triguero
13/10/2022 - 12:30
New developments at the IAA cosmic dust laboratory
The interpretation of astronomical observations of comets and asteroids and of extrasolar objects such as protoplanetary and debris disks is crucial for understanding the origin and evolution of planetary systems. Collecting electromagnetic radiation scattered or emitted by dust particles present in these objects with powerful telescopes is often our only way to observe and characterized them. In situ observations are available for a handful of...
Dr. Juan Carlos Gómez
31/12/2024 - 12:30
SO Colloquio: Present and future large radio surveys of the extreme universe
Transient radio emission is a fundamental tracer and physical probe of the most extreme and transient events in the universe. In this talk I will discuss a number of recent developments with existing radio telescopes, including i. the ThunderKAT image-plane transients programme on MeerKAT, ii. The first citizen-science project to search for commensal radio transients, iii. First radio detections of 'VHE GRBs' detected by ground-based Cherenkov...
Dr. Rob Fender
10/11/2022 - 12:30
SO Colloquio: The Cherenkov Telescope Array: Status and Prospects
The Cherenkov Telescope Array (CTA) will become the reference observatory for Very High Energy (VHE) Gamma Ray Astronomy during the next decades. CTA promises a jump in sensitivity and energy coverage of one order of magnitude over the current instruments, significantly improved energy and angular resolutions and full sky coverage. Over thousand new sources will foreseeably be identified in this range for the first time. VHE gamma rays are...
Dr. Juan Cortina
30/06/2022 - 19:00
El plano ondulado de la galaxia
Conferencia sobre la Vía Láctea, la galaxia que alberga el Sistema Solar
Emilio J. Alfaro
28/10/2022 - 12:30
SO Colloquio: Cosmografía: las aportaciones de al-Ándalus y los reinos ibéricos a la Revolución Científica
Si el Señor Todopoderoso me hubiese consultado, antes de embarcarse en la Creación, le habría recomendado algo más simple. Esta frase, supuestamente formulada por Alfonso X "el Sabio", muestra la complejidad del conocimiento cosmográfico en al-Ándalus y en los reinos cristianos que recibieron su acervo científico. La península Ibérica se convirtió a partir del siglo X en puente esencial para que el saber de la civilización grecorromana,...
Dr David Barrado Navascués
21/07/2022 - 12:30
SO Webloquio: Cold gas constraints via HI Intensity Mapping in the SKA era
Intensity mapping surveys of neutral hydrogen (HI) are a new way to measure the large-scale matter distribution of our universe over a wide range of redshifts, and thus constrain cosmological parameters describing the universal expansion. The next generation of radio telescopes and interferometers - in particular the Square Kilometre Array (SKA) - are being designed and built to include optimising the detection of the HI line at low spatial...
Dr. Laura Wolz
17/05/2022 - 18/05/2022
Gender Analysis in Research
Granada
11/05/2022
La ciencia, de nuevo, en la Feria del Libro
El Instituto de Astrofísica de Andalucía, el Estación Experimental del Zaidín, el Parque de las Ciencias y la Feria del Libro organizan la quinta edición del Área de Ciencia de la Feria del Libro, que se ubicará en la plaza del Humilladero, frente a la Fuente de las Granadas  
22/09/2022 - 12:30
SO Web-loquio: Old/new problems with Active Galactic Nuclei and AGN application to cosmology
After several decades of studies the basic nature of nuclear activity of galaxies is well understood. However, unexpected behaviour of AGN was already noted in the past, and with rise of the amount of data we see numerous evidences of phenomena which still require explanation, line Quasi-Periodic Ejection sources, and Changing-Look AGN. Also it is now time to address in more detail the physical nature of the simple AGN components like Broad Line...
Prof. Bozena Czerny
07/06/2022 - 12:30
Revisiting the intermediate- to high-mass star formation
Intermediate and high-mass forming stars have a large impact on the interstellar medium and nearby star forming regions. Historically, the study of the general properties of intermediate- to high-mass pre-main sequence stars has been hampered by the lack of a well-defined, homogeneous sample, and because few and mostly serendipitously discovered sources were known. As a consequence, many open problems involving high-mass star formation suffer...
Dr. Miguel Vioque
16/09/2022 - 12:30
SO Colloquium: Sex and gender analysis in research and Innovation
This lecture aims to increase researchers’ awareness of the current demands for the inclusion of sex and gender in their research. In fact, several governments and granting agencies, such as the European Commission and the Spanish Agencia Nacional de Investigación (AEI), now require that requests for funding address whether, and in what sense, sex and gender are relevant to the objectives and methodologies of the research proposed. Parallel with...
Dr. Capitolina Díaz
01/09/2022 - 12:30
SO Webloquio: Stellar Magnetism and Extra-Solar Space Weather
The environment around the Sun and other late-type stars is controlled by magnetic fields. The coronal high-energy radiation (Extreme Ultra-Violet and X-ray photons), the structure and strength of stellar winds, as well as transients such as flares, coronal mass ejections (CMEs), and energetic particle events, are some examples of this magnetic influence. Apart from their direct consequences on the star and its evolution, these phenomena will...
Dr. Julián Alvarado-Gómez
23/05/2022 - 12:30
New insight into the magnetism of isolated white dwarfs
Many stars evolve into magnetic white dwarfs, but we do not know when the magnetic field appears at their surface, if and how it evolves during the cooling phase, and, above all, what are the mechanisms that generate the field, and why they act on some but not all degenerate stars. Observations may help to find an answer to these questions, but their interpretation is dramatically affected by biases due to target selection and a non-homogeneous...
Dr. Stefano Bagnulo
27/10/2022 - 12:30
SO colloquio: A new look at the torus of active galactic nuclei
The classical picture to explain the observations of active galactic nuclei (AGN) required a geometrically and optically thick torus of molecular gas and dust to obscure the central engine from some lines of sight. For more than two decades, the torus was believed to be a compact (pc-scale), isolated, and rotating structure. Our recent work in the Galactic Activity, Torus, and Outflow Survey (GATOS), using ALMA and high-angular resolution mid-...
Dr. Almudena Alonso Herrero
21/09/2022 - 16:30
SO Webloquio: Dwarf Galaxies and the Smallest Supermassive Black Holes
Despite traditional thinking, an appreciable population of (relatively small) supermassive black holes may be lurking in dwarf galaxies. Before the last decade, nearly all known supermassive black holes were in the nuclei of giant galaxies and the existence of such black holes in dwarf galaxies was highly controversial. The field has now been transformed, with a growing community of researchers working on a variety of observational studies...
Dr. Amy Reines
21/06/2022 - 12:30
SO webloquio: Star-planet plasma interactions and radio emissions
Exoplanets are expected to sustain various plasma interactions with their parent star, depending on the stellar and planetary magnetic field strengths and on the sub- or super-Alfvénic wind speed at the planet’s orbit. Three such interactions lead to electron acceleration and subsequent radio emissions in our solar system: magnetized planets hit by the super-Alfvénic solar wind, and the sub-Alfvénic interactions of the unmagnetized moon Io and...
Dr. Philippe Zarka
07/07/2022 - 12:30
SO Webloquio: Optical interferometric studies of star and planet formation
A first step towards understanding planetary formation is the characterisation of the structure and evolution of protoplanetary discs. Although the large scale disc is understood in some detail, very little is known about the inner few au. In this region, dust grains sublimate, and accretion and ejection take place, affecting the entire disk structure and evolution. In this talk, I will review how optical interferometric observations can...
Dr. Rebeca García López
03/05/2022 - 12:30
Radio astronomy in the pre-SKA era: What can Apertif do for you?
With the Square Kilometre Array still several years away, SKA pathfinder telescopes are already enabling transformational science in radio astronomy with their astounding improvements in field-of-view, sensitivity, spatial resolution, and spectral bandwidth coverage. The APERture Tile In Focus (Apertif) is one such SKA pathfinder: a phased array feed instrument upgrade to the Westerbork Synthesis Radio Telescope that increases the field-of-view...
Dr Kelley Hess
14/06/2022 - 12:30
Detailed equilibrium and dynamical tides: impact on circularization and synchronization in open clusters
Binary stars evolve into chemically-peculiar objects and are a major driver of the Galactic enrichment of heavy elements. During their evolution they undergo interactions, including tides, that circularize their orbits and synchronize stellar spins, impacting both individual systems and stellar populations. My recent work introduces an accurate implementation of equilibrium and dynamical tides in the stellar population code binary_c, relying...
Dr. Giovanni Mirouh
31/05/2022 - 12:30
SO Webloquio: Empirical and physical properties of Lyman continuum emitters
Lyman continuum emitters are galaxies showing escaping ionizing radiation, which thus contributes to ionizing the intergalactic medium. They may be the dominant source of cosmic reionization. I will present an overview of the observations and modeling of low-z analogs of the sources of cosmic reionisation recently discovered. HST observations, including UV spectroscopy with COS and rest-UV imaging with the WFC3, combined with ground-based...
Dr. Daniel Schaerer
24/05/2022 - 12:30
Time domain astronomy with future X-ray satellites
Accreting black holes emit in X-rays at the wave-band in which THESEUS will be observing (0.3 keV-20 MeV) due to their extreme physical conditions. The softer energy range is devoted to thermal emission from the accretion disc and the harder is due to the existence of a hard X-ray emitting corona (with undefined geometry so far). The importance of one component versus the other gives rise to the diverse state classification of accreting black...
Dr. Maria D. Caballero-Garcia
14/07/2022 - 12:30
A journey into the Perseus cluster of galaxies
The central black hole of active galaxies accretes large amounts of matter and powers jets of relativistic particles that can propagate beyond the host galaxy. Radio galaxies are particularly bright at ∼ GHz frequencies, when the accelerated electrons interact with the magnetic field and produce strong synchrotron emission. Such galaxies residing in clusters evolve in a hot, diffuse, X-ray emitting plasma (the intracluster medium, ICM) which is...
Dr. Marie-Lou Gendron-Marsolais
26/04/2022 - 12:30
Destroying Planetary Systems
Modern astronomy invests a large amount of effort to search and characterise planetary systems around solar-like stars. In particular, at early stages of their formations in proto-planetary disks. However, we barely know much about the capacities of the planets to survive the harsh environments produced by their host stars during their evolution. In this talk, I will describe the effects a planet can produce by helping shape the mass loss of...
Dr. Jesús Toala
24/03/2022 - 12:30
Is it possible to simulate time machines in a laboratory?
General Relativity is the most succesful theory we have for describing gravitational phenomena. Its range of applicability is vast: from solar system scales to cosmological scales. It is well-known that GR allows the existence of time machines: devices that are able to generate Closed-Timelike-Curves (CTCs). Although these kind of objects are allowed in GR, most researchers believe that they cannot occur on macroscopic scales. However, it is...
Gerardo Garcia
20/05/2022 - 11:30
Imaging the supermassive black hole at the galactic center with the EHT
We present the first Event Horizon Telescope (EHT) observations of Sagittarius A* (Sgr A*), the Galactic center source associated with a supermassive black hole. These observations were conducted in 2017 using a global interferometric array of eight telescopes operating at a wavelength of λ = 1.3 mm. The EHT data resolve a compact emission region with intrahour variability. A variety of imaging and modeling analyses all support an image that...
José Luis Gómez, Rocco Lico, Guang-Yao Zhao, Ilje Cho, Antonio Fuentes, y Thalia Traianou
11/05/2022 - 12:30
SO Coloquio: Stellar clustering connecting the formation and evolution of galaxies to the formation and evolution of us
The clustered nature of star formation leaves a long-term imprint on galaxies, stars, and planets. At young ages, stellar clustering subdivides galaxies into individual building blocks undergoing vigorous, feedback-driven life cycles that vary with the galactic environment. These units structure the interstellar medium spatially, dynamically and chemically, and collectively define how galaxies form stars. At old ages, the relics of clustered...
Dr. Diederik Kruijssen
12/05/2022 - 12:30
SO Coloquio: The cloud-scale baryon cycle across the nearby galaxy population
The cycling of matter in galaxies between molecular clouds, stars and feedback is a major driver of galaxy evolution. However, it remains a major challenge to derive a theory of how galaxies turn their gas into stars and how stellar feedback affects the subsequent star formation on the cloud scale, as a function of the galactic environment. Star formation in galaxies is expected to be highly dependent on the galactic structure and dynamics,...
Dr. Mélanie Chevance
19/05/2022 - 12:30
SO Webloquio: Charting the first billion years of our Universe with the Square Kilometre Array
The first billion years witnessed the dawn of the first galaxies, eventually culminating in the final phase change of our Universe: the Epoch of Reionization (EoR). Recent observations allowed us limited glimpses into these epochs, improving our understanding of the timing of the EoR. However, we still do not understand the first galaxies and black holes, the vast majority of which are too faint to be seen directly in the foreseeable future....
Dr. Andrei Mesinger
07/04/2022 - 13:00
SO Webloquio: Measuring the Magnetic Fields of Exoplanets with Star-Planet Interactions
Planets interact with their host stars through gravity, radiation and magnetic fields. For giant planets orbiting stars within ~20 stellar radii (=0.1 AU for a Sun-like star), magnetic star-planet interactions (SPI) are observable at a range of wavelengths with a variety of photometric, spectroscopic and spectropolarimetric techniques. At such close distances, planets orbit within the sub-alfvénic radius of the star, where magnetic interactions...
Dr. Evgenya Shkolnik
09/03/2022
"Entre sillas": seis voces femeninas para analizar la situación de la mujer en distintos ámbitos
La actividad, organizada por el Ayuntamiento de Granada y el Instituto de Astrofísica de Andalucía, tendrá lugar el 10 de marzo a las 20.30 horas en el Teatro del Zaidín Isidro Olgoso dentro de las actividades organizadas por el Día Internacional de las Mujeres.
20/04/2022 - 12:30
Turning Trash into Treasure: How OH megamasers are contaminating next-generation HI surveys and what they can tell us about galaxy evolution
OH megamasers (OHMs) are rare, luminous masers found in (ultra-)luminous infrared galaxies ([U]LIRGs). The dominant OH masing line at 1667 MHz can spoof the 1420 MHz neutral hydrogen (HI) line in untargeted HI emission line surveys. This ambiguity creates a potential source of “contamination” in HI surveys, particularly for next-generation surveys that will reach groundbreaking sensitivities and redshifts. In this talk, I will present...
Dr. Hayley Roberts
31/03/2022 - 12:30
How the intracluster light is going to change your life!
There are a huge number of astrophysical phenomena that remain barely studied due to the lack of large, multiwavelength and deep optical surveys. This is the Universe with the lowest density of stars, largely unseen by past large field surveys like the Sloan Digital Sky Survey (SDSS). For instance, only a handful of galaxy clusters have been observed with enough depth to witness the intracluster light (ICL), made up of stars that drift freely...
Dr. Mireia Montes
28/04/2022 - 12:30
SO Webloquio: When artificial intelligence meets astronomy: celestial object census
Over the centuries, astronomers have continued to improve the performance of telescopes and the techniques for observing and analysing data. Nowadays, humans are building more and more advanced telescopes with larger and deeper observations, reaching terabytes and even petabytes of data. The Square Kilometre Array (SKA) radio telescope, the most ambitious project in astronomy under construction, is expected to produce more than 700 petabytes of...
Dr. An Tao
21/04/2022 - 12:30
SO Coloquio: Constraints on the origin of free-floating planets from the mass function
The stellar mass function is a fundamental parameter to constrain star formation models. Although the stellar content has been extensively studied since Salpeter's first work in 1955, the study of the planetary mass regime is only now becoming feasible. I will present a recent census of the Upper Scorpius and Ophiuchus star- forming region, where we identified between 70 and 170 free- floating planets. This is by far the largest sample of...
Dra. Núria Miret Roig
17/03/2022 - 12:30
Surprises from MAVEN at Mars: Aurora, meteor showers, and a new water loss paradigm
The Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft carries the Imaging Ultraviolet Spectrograph (IUVS) to study the Mars atmosphere and atmospheric escape. After more than two Mars years in orbit, IUVS has gained new insights on key phenomena at Mars including dayglow, nightglow, aurora, meteor showers, clouds, solar-planetary interactions and atmospheric evolution. In this presentation, I will highlight three key results...
Dr. Nick Schneider
02/06/2022 - 12:30
SO Coloquio: The Antikythera Mechanism and the Mechanical Universe
The Antikythera Mechanism. An astronomical calculator and display device found in a first century BCE shipwreck, it is mechanically more sophisticated than anything known from the subsequent millennium. I want to argue that we should be showing admiration rather than amazement, and that the Mechanism fits rather well into its historic context. But this fit has major implications for the development of humanity’s view of the Universe.
Prof. Michael G. Edmunds
23/06/2022 - 12:30
Disks around evolved binaries: do they form second-generation planets?
Most of the planets are formed around young stars. But can they also form around dying stars? The origin of the diversity and complexity of the detected exoplanetary systems stems from how they form in protoplanetary disks. These disks are intensively studied around young stars thanks to the high-angular resolution provided by recent instruments (VLT, ALMA). However, similar disks are also found around evolved stars, namely post-AGB binaries,...
Dr. Jacques Kluska
21/03/2022 - 01/04/2022
PySnacks for beginners
Online
25/01/2022 - 12:30
Cosmological QUOKKAS: Proof of concept and early results on the Hubble Constant tension
Distances are one of the most important yet difficult to get quantities in astronomy. Normally, astronomers use redshifts (which are relatively easy to measure) as distance measure, but this only works if one assumes that there is a relationship between redshift and distance. The relationship between redshift and distance was first observationally verified in the 1920s by Edwin Hubble. He found that the further away a galaxy was, the galaxy...
Dr. Jeff Hodgson
20/01/2022 - 12:30
Astronomy for attaining sustainable development goals in Africa
Education and its contribution to science, technology, and innovation are the key points for combating poverty in the long term. Education is also a key point for empowering girls and women, which is fundamental for achieving the United Nations Sustainable Development Goals (SDGs). Astronomy is a powerful tool to promote education and science but, in addition to that, it is also one of the leading sciences for bringing strong technological...
Dra. Mirjana Povic
05/05/2022 - 12:30
Unexplored outflows in nearby low luminosity AGNs: the case of NGC 1052
NGC1052 is considered the prototype of AGN-LINERs, an AGN family at low-luminosity for which, so far, the role of outflows in their evolution has been studied the less. Thanks to MUSE and MEGARA IFS-cubes we found that the stars are distributed in a dynamically hot disc whereas the ionised gas is detected mostly in the polar direction up to 3.3 kpc. We found evidences evidence of an ionised gas outflow (jet-powered) propagating in a cocoon of...
Dra. Sara Cazzoli
24/02/2022 - 12:30
SO Webloquio: Exploring the transient radio sky with the SKA and its precursors
Radio astronomical observations probe particle acceleration in some of the most extreme environments in the Universe. For example, we can trace the relativistic jets produced by accreting black holes; observe flashes from hyper-magnetised neutron stars; and study the aftermath of stars that are ripped to shreds as they pass close to super-massive black holes. These events provide critical information about the extremes of the Universe, but they...
Dr Jason Hessels
27/01/2022 - 12:30
La IAU más cerca que nunca
The International Astronomical Union (IAU) has more that 13000 members. Each country pays according to a table that has to do with the number of people belongin to the IAU. But the IAU is not only a club of members but has a number of activities that are open to every member. In particular the IAU run 9 Symposia per year with topics relevant to current astrophysics. On years where there are a General Assembly on top of the 9 Symposia the IAU...
Dr. José Miguel Rodriguez Espinoza
17/02/2022 - 12:30
The Africa Millimetre Telescope project - extending the EHT
The Africa Millimetre Telescope (AMT) project led by the Radboud University and the University of Namibia aims to realise a new telescope on the Gamsberg mountain in Namibia to extend the existing network of telescopes that together form the EventHorizonTelescope (EHT). For the future of the EHT more independent nodes in the network are needed to increase the overal redundancy of the network and to improve the image quality and allow for time-...
Dr. Marc Klein Wolt
25/11/2021 - 19:00
Alfonso X, el rey que supo ser sabio
En esta charla se repasarán algunas de sus contribuciones a la cultura y al saber, priorizando aquellas de carácter científico.
Antonio Claret
21/10/2021 - 22/02/2022
Spanish for beginners at the IAA-CSIC
Granada
11/01/2022 - 12:30
SO Webloquio: Active Galactic Nuclei as seen from the 7 X-ray eyes of eROSITA
Active Galactic Nuclei (AGN) are not longer considered part of a small and exotic source population but are now widely accepted to play a significant role in the evolution of galaxies through cosmic time. However, even 20 years after the realization of the close link between the galaxies and the active SMBH that they host, the various mechanisms and the interconnection are not fully clear. Two complementary approaches are followed to deepen our...
Dra. Mara Salvato
09/06/2022 - 16:30
SO Webloquio: Space Weather in an Era of Innovative Science
The newest generation of solar observational data is allowing a pivot toward making connections in the various solar physics domains and facilitating advanced modeling for space weather conditions and impacts. We study important physical couplings in the solar atmospheric layers, as well as connections from the solar corona through the heliosphere. To advance our understanding of how solar activity and variability impact space weather conditions...
Dr. Holly Gilbert
10/03/2022 - 12:30
The RoboPol Program: Optical Polarimetric Monitoring of Blazars
Blazars are a subclass of Active Galactic Nuclei with relativistic jets pointing at us. For this reason the highly amplified polarized synchrotron emission from their jets dominates in the optical band. Typically, the electric vector position angle (EVPA) of the optical polarized emission in blazars varies in an erratic way. However, in rare cases the EVPA displays long, smooth and monotonic rotations. Being puzzled by this phenomenon missing a...
Dr. Dimitriy Blinov
23/11/2021 - 12:30
Search for MIlli-LEnses (SMILE) to discriminate between dark matter models
Projects aimed at characterising dark matter properties make use of very different approaches. One such approach is to look for strong gravitational lens systems. Gravitational lensed images with angular separation on milliarcsecond scales probe gravitational lens systems where the lens is a compact object with mass in the range 10^6-10^9 solar masses, i.e a supermassive compact object (SMCO). This mass range is particularly critical for the...
Dra. Carolina Casadio
03/03/2022 - 12:30
The continuous rise of bulges out of galactic disks
A tantalizing enigma in extragalactic astronomy concerns the chronology and driving mechanisms of the buildup of the central luminosity excess (bulge) in spiral galaxies like our Milky Way, i.e. in systems referred to as late-type galaxies (LTGs) in the Hubble classification scheme. The standard scenario envisages a two-phase galaxy formation process, with the bulge assembling first in a quick and violent quasi-monolithic episode, with the disk...
Dr. Iris Breda
04/11/2021 - 12:30
Identification and characterisation of emission line galaxies with J-PAS
The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) is expected to map thousands of square degrees of the northern sky with 56 narrow band filters (spectral resolution of R around 60) in the upcoming years. This resolution allows to study emission line galaxies (ELG) with equivalent widths of a few armstrongs. Meanwhile the Pathfinder J-PAS camera observed 1 deg^2 with the same photometric system than J-PAS, named...
Gines Martinez Solaeche
14/10/2021 - 12:30
The miniJPAS survey: the galaxy populations in the miniJPAS cluster mJPC2470-1771
Galaxy clusters are one of the largest structures in the Universe. Due to the interaction among the galaxy members, they are a great laboratory to study the role of the environment in galaxy evolution. J-PAS survey will soon start to scan thousands of square degrees in the sky, and with its large great field of view (4.2 square degrees) and filter system (56 narrowband filters and 4 broadband filters in the optical spectral range) will provide...
Julio Rodriguez Martin
20/10/2021 - 22/10/2021
SO Instrumentation School: IV. Vacuum Technology
Granada

Pages