February 10, 2005, Pratt Conference Room at 12:30 pm
An Infrared Study of Galactic Star Forming Regions
Dr. Sarita Vig (Tata Institute of Fundamental Research, Mumbai, India)
The Galactic star forming regions associated with IRAS 19111+1048,
IRAS 19110+1045 and IRAS 10049-5657 has been mapped simultaneously in
two far infrared bands (lambda_eff = ~140 & 200 um), with ~1' angular
resolution using the TIFR 1-m balloon borne telescope. The HIRES
processed IRAS maps at 12, 25, 60 & 100 micron have been used for
comparison. The distribution of warm dust and emission in Unidentified
Infrared Bands in the mid infrared, have been studied based on the MSX
data. Radiative transfer modelling has been carried out taking into
account all available infrared and radio measurements to obtain
various physical parameters like nature of the exciting source,
geometrical dimensions, dust distribution and composition etc.