Eventos

One of the most interesting sources of gravitational waves is the inspiral of compact objects on to a massive black hole (MBH), commonly referred to as an extreme-mass ratio inspiral.

Since the beginning of modern astronomy, dust has always been considered an obstacle on the path to understanding both nearby and far away phenomena.

MIPAS is a Fourier transform limb emission mid-infrared spectrometer in Earth orbit. It provides spectrally resolved radiance profiles in the 4.15 to 14.6 mum spectral region from about 5 km up to 70 km (in its nominal mode) and up to 150 km in special observation modes.

Star formation is a key ingredient of the formation and evolution of galaxies. The associated dust emission has been observed up to very high-z. At mm wavelengths, this can be done thanks to the negative k-correction, which compensates the increasing luminosity distance.

El Observatorio de Calar Alto cuenta en estos momentos con tres telescopios opticos-infrarrojos y un conjunto de 11 instrumentos que cubren un gran rango de necesidades en distintos campos científicos, con una demanda desigual por parte de la comunidad astronómica.

Most of today's stars were formed in high intensity episodes about 7-10 Gyr ago. However, at these redshifts both resolution and dimming effects make it difficult to study in detail the interaction of the gas, dust and newly formed stars.

The discovery of the binary pulsar PSR B1913+16 by Hulse and Taylor provided definite evidence of the existence of gravitational waves as predicted by Einstein's General Theory of Relativity.

How far back in time can we have knowledge of the universe? Most cosmologists would agree that the physics describing the ‘material content’ of the universe becomes increasingly speculative the further we go back in time.

Supersonic jets are observed to emerge from a wide variety of astrophysical systems, from young stellar objects (YSOs) to AGNs. Despite their different physical scales (from hundreds to billions of astronomical units), they have strong morphological similarities.

The Transneptunian belt is a reservoir of icy bodies in the outer reaches of our solar system. This region is believed to be the source of the Jupiter-Family Comets and is also thought to contain very pristine material, the leftovers of planet formation beyond the ice line.

The present talk emphasizes the most relevant challenges which have been overcome from engineering point of view in order to build the first generation of VLT instruments.

SONYC, "Substellar Objects in Nearby Young Clusters", is an ongoing project to provide a complete census of the brown dwarf and planemo (free-floating objects with masses comparable to those of massive planets)population in nearby young clusters.

We present a study of the distribution of star, gas, and dust components in star-forming regions in nearby galaxies.

Hoy día hay un renovado interés en realizar observaciones de Marte con instrumentación en Tierra de un modo sistemático. Y hacerlo, ademas, en el infrarrojo. La tarea no está exenta de dificultades, incluyendo la contaminación telúrica y el pequeño tamaño del planeta rojo.

El campo magnético de una galaxia no es solamente importante porque nos proporciona un método de observación, sino también por sus efectos dinámicos.

I will briefly review the PN phenomena and describe the power of these objects as probes of stellar evolution and Galactic evolution. I will address their use as potent kinematic tracers and their value as cosmological distance indicators.

Recent developments in stellar evolution theory describing critical phases of this process (e.g. TP-AGB), and the availability of new libraries of theoretical and empirical stellar spectra allow us to build more complete and realistic population synthesis models than those in common use.

The direct detection of dark matter on Earth depends on its density and its velocity in the Solar neighbourhood. Unforunately, it is uncertain whether the dark matter distribution on the relevant physical scales (milliparsec) is homogeneous or not.

I start with a brief overview of photometric redshifts. I describe the new version of the Bayesian Photometric Redshift software, BPZ, and compare its performance with other public photo-z codes as EAZY or LePhare on datasets like COSMOS or ALHAMBRA.

The available blazar samples were selected at relatively high limiting flux densities in the radio and X-ray band. Those samples have small sizes (30-50 objects) making it difficult to statistically derive parameters related to beaming effects.