EPoS Contribution
EPoS Contribution
High-mass star formation toward southern infrared bubble S10

Swagat Das
IIST, Thiruvananthapuram, IN
Infrared bubbles are interesting morphological features likely to be manifestations of the interplay between high-mass stars and the surrounding interstellar medium (ISM). In this paper, we present the radio and infrared study of a southern infrared bubble S10 located at a distance of 5.7 kpc. The 1280 and 610 MHz radio continuum maps show the presence of ionized gas in the interior of the bubble. The radio flux density suggest the ionizing source to be of spectral type B0.5 - B0. The mid-infrared images show the presence of an arc-like feature at the centre of the bubble with an aligned rupture on the outer shell. The direction of this is consistent with the flow direction of the ionized gas hinting at a possible bow-wave scenario. We have also probed the physical properties of the cold dust environment associated with this bubble. Six high mass clumps, with masses ranging from 300 - 1600 Msol, are located mostly towards the periphery of the bubble. The mass radius correlation indicates all these clumps to be potential sites of high-mass star formation.
S.K. Ghosh, NCRA, IN
C.H.I. Chandra, NCRA, IN
Suggested Session: Massive Star Formation