Abstract Details

Name: Swagat Ranjan Das
Affiliation: Indian Institute of Space Science and Technology
Conference ID: ASI2017_1145
Title : Star formation associated with infrared bubbles
Authors and Co-Authors : Anandmayee Tej, Sarita Vig (Indian Institute of Space Science and Technology, Trivandrum 695547, India) Swarna K. Ghosh, Ishwara Chandra C. H. (National Centre For Radio Astrophysics, Pune 411007, India)
Abstract Type : Oral
Abstract Category : Stars,ISM and the Galaxy
Abstract : Infrared (IR) bubbles are the outcome of expanding HII regions into surrounding interstellar medium (ISM) around massive stars. These are driven by thermal pressure, stellar wind, radiation pressure or a combination of these feedback mechanisms. IR bubbles bubbles show interesting morphologies and are bright in the mid-infrared (MIR) wavebands because of the excitation of the polycyclic aromatic hydrocarbon (PAH) molecules by UV photons. Apart from enabling us to probe high-mass star formation, they also help us understand triggered star formation in the swept up shells. Multiwavelength studies of these bubbles have the potential to investigate the physical characteristics of the associated gas and dust and the ongoing star formation activity. In this talk, I will present an observational study of a sample of bubbles from infrared through radio wavelengths. Observations with GMRT is complimented with archival near, mid and far infrared data for this study.