ISM -- Poster Presentation
High Resolution Radio Observations of Southern Galactic Star
Forming Regions
Ram Prakash Verma, Tata Institute of Fundamental Research, Mumbai 400005, India
S.K. Ghosh(TIFR), V.K. Kulkarni (National Centre for Radio Astrophysics, Pune 411007, India), D.K. Ojha (TIFR), A. Tej (TIFR) and S. Vig (TIFR)
As part a programme of high resolution radio mapping of
Galactic star forming regions, many Galactic star forming regions have
been observed at 1280, 610 and 325 MHz using Giant Metrewave Radio
Telescope (GMRT), India. GMRT is a synthesis telescope consisting of
thirty 45 m diameter parabolic dishes spread in a 'Y' shape configuration.
Baselines range from 100 m to 25 km providing high angular resolution
(about 3" at 1280 MHz, 6" at 610 MHz and 9" at 325 MHz) as well as
sensitivity to diffuse structures. In this paper some of the maps of
southern sources will be presented. All the sources are resolved and
many show extended diffuse emission. These maps will be compared with
available maps at other wavelengths (e.g. millimeter, infrared) to have
an understanding of these regions. Radiation transfer modeling of the
observed spectral energy distribution from dust continuum, constrained
by the radio emission and angular sizes will be presented.