Eventos

We have used the Advanced Camera for Surveys (ACS) on the HST to obtain optical imaging of a sample of 7 galaxy clusters in the redshift range 0.8<z<1.3.

We present results and progress notes from an investigation into the rotation curves of spiral galaxies at high and low redshift. We discuss work done with data from the DEEP2 (Deep Extragalacitc Evolutionary Probe) spectroscopic survey, which is a major effort to characterize galaxies at z~1.

Asteroid families are the remnants of catastrophic collisions between asteroids and, so, we should expect a sort of mineralogical coherence among its members.

The evolution of a galaxy and its nuclear black hole is now widely thought to be co-eval.

La fracción de galaxias barradas ha crecido enormemente en las últimas décadas. Actualmente, las estructuras barradas (barras u óvalos) no deben tratarse como una rareza o una pecularidad que exhiben algunas galaxias.

En esta charla se dará un informe del congreso "Communicating Astronomy with the Public", organizado por ESA, ESO e IAU en Munich, que tocará entre otros los siguientes puntos:

In recent years there has been a growing interest in the study of space-times embedded in some higher-dimensional space (see e.g. brane models, induced matter theory, ...).

Optical afterglows of GRBs provide vital information about the nature of the progenitors and the energetics. Observed achromatic steepening in several optical afterglow light-curves show evidence for the presence of the jet-break, constraining the total output energy.

Previews of both parts of this DVD can be seen at www.universe-film.com. It can be thought of as the "inelegant universe" response to the recently shown "Elegant Universe" film that glorifies the standard model.

Previews of both parts of this DVD can be seen at www.universe-film.com. It can be thought of as the "inelegant universe" response to the recently shown "Elegant Universe" film that glorifies the standard model.

The study of the stellar content of distant galaxies has a long and venerable history but, at the same time, something of a 'bad reputation' due to the numerous problems associated with dificulties in disentagling age, metallicity and extinction effects.

I will briefly review my research interest on Low Surface Brightness Galaxies (LSBGs). I will show the latest results from our survey for LSBGs with the Sloan Digital Sky Survey (SDSS) data.

Enrique, Valentina y Miguel Ángel nos presentarán un resumen (¡prometen que no será de más de 25 minutos!) de COMCIENCIA05, un curso de formación para científicios al que asistieron del 11 al 3 de Mayo, en Barcelona.

The quasar spectral energy distribution (SED) in the UV is characterized by a sharp break near 1000 A. The SED (in Fnu) of quasars can be described by a broken powerlaw. Telfer et al.

The solar coronal heating is one of the most important problem to be solved for the astrophysics. Although it is widely accepted that the magnetic filed emerging from the solar surface plays an essential role for the coronal heating, the detailed mechanism is totally unknown.

I will discuss recent efforts to assemble and analyse a multi-band (UBVRIJH) galaxy image library for the purpose of quantifying the structural properties of nearby and distant galaxies.

Definitivamente las nubes interestelares no son esféricas (ni cúbicas!). Su complejidad es difícil de modelar basados en cualquier figura geométrica simple.

Los sistemas "virializados" de partículas que interactúan sólo gravitatoriamente tienen perfiles de densidad y velocidad bien definidos que se extienden hasta varios radios viriales.

The end products of the life of the first stars in the Galaxy are preserved in the most metal-poor stars we see today. A Large Programme of high-resolution spectroscopy at the ESO VLT has enabled us to study the compositon of such stars in unprecedented detail.

The Nordic Optical Telescope (NOT) has now been in successful operation on La Palma for 15 years. Great changes have taken place in Nordic and European astronomy during that time. Notably, ESO has commissioned the VLT, to which most Nordic astronomers now have access.

It is generally believed that Lorentz invariance is an exact symmetry of Nature. Together with the equivalence principle, local Lorentz invariance is one of the assumptions underpinning General Relativity.

Although astronomical archives constitute a basic tool for modern Astrophysics as revealed by their intensive usage (in particular for multiwavelength astronomy), it is also true that the efficiency in the scientific exploitation of the available information is seriously limited by two major fact

La formulación de los modelos de síntesis evolutiva fue planteada a mediados de los años 60 para analizar las poblaciones estelares en sistemas no resueltos en un esquema acorde a la instrumentación de esa época. Dicha formulación no se ha replanteado en los últimos 30 años.

We begin by showing that a collapsing dust cloud with a central homogeneous core must have a faint atmosphere in the Brane-World, unlike the four-dimensional General Relativistic case, in which a pure vacuum exterior is allowed.

Tecnología GRID

We show how to reliably identify the counter-images of resolved background sources lensed by galaxy clusters.

Se abordará la evolución y crecimiento de la red de ordenadores y comunicaciones desde 1994, citando los causas que han motivado estos cambios. Se describirá la topología y evolución de la red interna, así como la topología de la red externa y causas que la motivan.