[SEMINARI] Star formation at radio wavelengths: proto-brown dwarfs and protoplanetary disks, Itziar de Gregorio-Monsalvo

[Enric Marco]

Title: Star formation at radio wavelengths: proto-brown dwarfs and 
protoplanetary disks

by: Itziar de Gregorio-Monsalvo

from: ESO-ALMA

where: Seminari del departament d'Astronomia i Astrofísica

date: Dijous 07 novembre 2013, 12:00 h.

Resum

I will present my latest studies on two different topics:  the formation 
of brown dwarfs (BDs) and the structure of the protoplanetary disks. The 
formation of BDs is currently a hot topic of research.  Since stars and 
BDs evolve very rapidly during the first million years, many answers to 
the formation mechanism must come from the study of their properties 
when they are deeply embedded in the natal cloud (proto-BD stage). 
Sensitive millimeter and submillimeter surveys offer the exciting 
prospect of identifying a population of candidate proto-BDs for the 
first time, as well as studying BD disk properties. In this talk I will 
present a multiwavelength study in Taurus, Chamaeleonis II and Barnard 
30 star forming regions aiming to search for the best proto-BD 
candidates of the region. As a second topic, I will show the results of 
very high-resolution and sensitive observation using ALMA towards the 
disk surrounding the intermediate mass young star HD163296. Dust and 
gas-rich disks around recently-formed stars are important as they harbor 
planets either recently formed or in the process of formation. 
Consequently, the structure of these young protoplanetary disks has been 
the subject of intense study over a wide range of wavelengths. HD163296 
is one of the best-studied protoplanetary disks, and was one of the 
first to be resolved with mm-interferometry. I will present the detailed 
radial and vertical structure of this protoplanetary disk and the 
implications of these results for current theoretical models.

http://celeste.uv.es/daa/seminari.php.UTF8?id=1077

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/------------------------------------\
Dr. Enric Marco
Departament d'Astronomia i Astrofísica
Facultat de Física
Universitat de València
C/  Dr. Moliner, 50
46100 Burjassot, Spain
Phone: (34)-96-354-3069
Fax:(34)-96-354-3084
enric.marco en uv.es
www.uv.es/marco
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