The Milky Way Galaxy

“The Milky Way Galaxy” 

Dr. Giovanni Carraro
Astronomo, European Southern Observatory

Viernes 21 de Noviembre de 2014, 14:30 hrs 
Duración: 45 min. + 15 min. de preguntas 
Auditorio B-221 
 
Abstract: The Milky Way is the galaxy that contains our Solar System. It’s name “milky” is derived from it’s appearance as a dim glowing band arching across the night sky in which the naked eye cannot distinguish individual stars.
In this talk will be review the structure of the Milky Way, the galaxy where we live in, with special emphasis on open questions and present day investigation. The topics that will be touch are: galaxy formation, the spiral structure of the Milky Way, radio-astronomy and optical astronomy.

Formation of high-mass stars: disks, winds & envelopes

“Formation of high-mass stars: disks, winds & envelopes”
Dr. Willem-Jan de Wit
Astronomo, European Southern Observatory

Viernes 7 de Noviembre de 2014, 14:30 hrs 
Duración: 45 min. + 15 min. de preguntas 
Auditorio B-221 
 
Abstract: An important unresolved question in astronomy regards the formation of massive stars (M>10Msol). These objects are located far away (>1kpc) and evolve rapidly to main sequence.

If we are to understand how young massive stars grow in mass given the presence of a strong radiation field, very high-angular resolution observations are a necessity. I will present an overview of the current state of the art of the observations and the theoretical background of massive star formation. I will shows that mass accretion activity will give rise to emission in the mid-IR wavelength range and present results from long baseline interferometry as it provides a strong potential for answering key questions in massive star formation.