Eventos

In this talk I present an analysis of the gas-phase oxygen abundances of a sample of 28 galaxies in the local Universe (z<0.02) hosting Type Ia Supernovae (SNe Ia). The data were obtained with the 4.2m William Herschel Telescope (WHT).

The RadioAstron Space VLBI mission utilizes the 10-m radio telescope on-board the dedicated Spektr-R spacecraft to observe cosmic radio sources with an unprecedented angular resolution at 92, 18, 6 and 1.3 cm. The longest baseline of the space-ground interferometer is about 350,000 km.

Blazars are the most luminous persistent objects in the sky. They emit light across the entire electromagnetic spectrum, from low-energy radio waves to high-energy gamma-rays, and they exhibit variability on timescales that range from years down to minutes.

In this talk I will focus on the most luminous LINERs in the local universe, where we studied their SF and AGN activity in order to understand the LINER phenomenon in relation to star-forming galaxies and to compare their properties with those of the LINERs at z ~ 0.3.

ECS es una empresa de ingeniería especializada en Observatorios Astronómicos. Realiza los pertinentes estudios y evaluaciones de calidad de cielo, logística y necesidades específicas, para ubicar y diseñar el observatorio.

The solar chromosphere is permeated by solar structures such as sunspots, surges, flare ribbons, prominences (filaments) or spicules, where non-local thermodynamic equilibrium effects dominate the state of the plasma and where the magnetic fields are expected to be much lower in intensity than in

Almost every massive galaxy has at least one super-massive black hole (SMBH) at its center. Most (>90%) of those SMBHs are quiet. Understanding the accretion of low-luminosity SMBHs represents a very important and fundamental problem in astronomy.

La formación, evolución y muerte de las estrellas es, quizás, el núcleo esencial de la astronomía.

The standard view is that black holes exist, maybe not with all the properties of strict black holes in classical General Relativity, but sufficiently close to them that one does not need worrying in the astrophysical practice.

Funded by an ERC Consolidator grant, eLightning is a research project about one of the most familiar but also least understood phenomena in nature: the lightning discharge.

The upper mass stellar initial mass function is similar to the mass function of young star clusters.  I argue that this is a basic result expected when gravitational focusing on scales much larger than the Jeans length operate.

Brown dwarfs are the objects that bridge the realms of stars and planets, making them important benchmarks for testing star and planet formation theories.

CARMENES (Calar Alto high-Resolution search for M dwarfs with Exoearths with Near-infrared and optical Échelle Spectrographs) is the next generation instrument built for the 3.5m telescope at the Centro Astronómico Hispano-Alemán (Calar Alto Observatory; CAHA, Almería, Spain), which is jointly op

The analysis of ultra-precise data of stellar light variations observed with satellites (CoRoT, Kepler, SoHO, etc.) has revealed some unexpected results that cannot be explained by theory. This hampers and, in some cases, even prevents from interpreting the stellar oscillations.

OCTOCAM has been proposed to the Gemini observatory as a workhorse imager and spectrograph that will fulfill the needs of a large number of research areas in the 2020s.

The simplest standard unified models of Active Galactic Nuclei (AGN), put forward more than 30 years ago, postulate that the diversity of observed properties of AGN can be largely explained as a viewing angle effect resulting in anisotropic nuclear obscuration.

We will review the importance of multi-wavelength studies of massive stars and how each of the wavelength ranges may provide crucial and complementary information to characterize these objects.

Galaxy clusters are important in cosmology to set constraints on various parameters, but they are also intrinsically interesting, since they allow to study many physical processes.

My presentation will provide an update of the construction of the SKA pathfinder in South Africa, the MeerKAT, a 64-dish radio telescope which is due for completion in the first quarter of 2017.  Construction includes the establishment of the Karoo Radio Astronomy Observatory with its associated

The inner solar system is full of interplanetary dust particles (IDPs) originating from cometary trails and collisions between asteroids.

Relativistic jets have been observed or postulated in various astrophysical sources, including active galactic nuclei, microquasars in the galaxy and gamma-ray bursts.

ORISON es un proyecto financiado por el H2020 de la Unión Europea, dentro de la convocatoria INFRASUPP2, coordinado desde el IAA.

Red supergiant stars (RSGs) are cool and massive stars that evolve toward Wolf-Rayet stars and supernovae. They have extended atmospheres and strong stellar winds, which lead to significant mass loss.

In this brief talk I will present the current and near-future adaptive optics (AO) capabilities of ESO's VLT.