Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.8930f&link_type=abstract
American Astronomical Society, AAS Meeting #211, #89.30; Bulletin of the American Astronomical Society, Vol. 39, p.883
Astronomy and Astrophysics
Astronomy
Scientific paper
Bright-Rimmed Clouds (BRCs) are situated on the periphery of HII regions and are suspected sites of triggered star formation via the the mechanism of Radiative Driven Implosion (RDI). The focus of this study is to investigate the conditions within one BRC and determine the effects of the ionizing radiation on star formation and cloud evolution.
We present multi-wavelength observations of the BRC SFO14 (IC 1848A) in NH3(1,1) and (2,2), CCS(J=2-1), and CO(J=3-2). These observations are complemented with archival Spitzer data. The NH3(1,1) emission maps two cores within SFO14, the larger of which is coincident with star forming region AFGL 4029 and a SCUBA submillimetre core previously reported by Morgan et al. (accepted). This extended emission around the core shows strong evidence of erosion by ionizing radiation (including elongation radially away from ionizing source BD +59 578). The velocity distribution of the elongation suggests that this core is located to the foreground of BD +59 578. NH3 inversion line measurements indicate rotation temperatures between 15K and 30K for the cloud, with higher rotation temperatures at the windward edge of the primary core nearest the cloud rim.
Figura Charles C.
Morgan Larry
Urquhart James
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