Eventos

In this talk I will present the status of the professional astronomy in Ukraine.

Parto de la sensación - que no se cómo he llegado a tenerla, pero de la que me siento totalmente responsable - que al menos para los problemas de transporte radiativo (y creo que en todas las ramas del Cálculo Numérico), la llegada del "Ordenador" ha sido considerada nada más que como una mejora

Rotation constitutes an important element to take into account when modelling A type and hotter Main Sequence stars. Nowadays, despite the progress made in the treatment of rotation, it remains a significant problem for the analysis of observations from this kind of stars.

Nuestro trabajo reciente basado en espectros ópticos obtenidos con los telescopios KeckII y VLT, muestra que las radio galaxias lejanas (z>~2) están asociadas con enormes reservas gaseosas que se extienden a menudo >~100 kpc.

The Lyman alpha line from starburst galaxies presents a variety of profiles that can be understood within the frame-work of massive feedback from star formation.

How does one go about finding an H-R Diagram for Quasars? Does it make any sense to search for one? We will review the evidence for phenomenological diversity among the broad-line emitting AGN that highlights the need for such a diagram. In other words, all quasars are not alike.

La fuerte radiación generada por los objetos HH impregna las nubes moleculares en las cuáles están embebidas, alterando significativamente la composición química de las regiones más cercanas a estos objetos.

I review briefly theoretical reasons for possible violations of Lorentz and/or CPT symmetries in some models of quantum gravity.

Observations of recently exploded radio supernovae -a few years to a few tens of years- allow us to obtain valuable information about the nature and evolutionary phase of the progenitor star in the period from a few hundred to several tens-of-thousands of years before its explosion.

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A1689 is one of the most powerful gravitational lenses in the sky. In June 2002 we observed the center of A1689 with the ACS WFC for 20 orbits in the g,r,i,z bands, plus 3 orbits of grism observations. The resulting images are close to the depth of the HDFN over an area of 3.4'x3.4'.

The phenomenon of active galactic nuclei (AGN) has been one of the most intriguing subjects of astrophysical studies in the past several decades.

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Actualmente hay un gran debate acerca de como ocurre la formación de una estrella masiva.

Circumstellar interaction of the shocked ejecta gives rise to emission in radio and X-ray bands.

La astrosismología es una de las herramientas más potentes que tenemos para el estudio de la estuctura interna de estrellas aisladas.

There is now general agreement that gamma-ray bursts involve extraordinary power outputs, posing a severe theoretical challenge and - irrespective of which detailed model proves correct - involving some fascinating and extreme physical processes.

La interacción de galaxias es un fenómeno común en el Universo.

The problem of ``stellar population synthesis'' is to derive the stellar population of an unresolved stellar system using a database of stars or clusters.

Dense molecular ISM is the site of star formation. FUV radiation from hot stars heat the nearby molecular gas establishing a region called Photon Dominated Regions (PDRs), where the physical and the chemical processes are dominated by the FUV field.

Aunque durante mucho tiempo no ha sido así, hoy se encuentra ampliamente aceptado el hecho de que los archivos juegan un papel fundamental en la investigación astronómica.

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I will discuss results from the recently-completed H-alpha Galaxy Survey (HaGS), which resulted in H alpha and broad-band R imaging of 334 star-forming galaxies out to 3000 km/s, selected as an unbiassed subset of the Uppsala Galaxy Catalogue.