G29.96-0.02: The enigma of ultra-compact HII regions

Details G29.96-0.02: The enigma of ultra-compact HII regions G29.96-0.02: The enigma of ultra-compact HII regions

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2707g&link_type=abstract

Chandra proposal ID #10200077

Astronomy and Astrophysics

Astrophysics

Scientific paper

Young massive stars have strong stellar winds which sweep up and clear their environment. This is a key factor in stopping the star formation process and disrupting their nascent molecular clouds. We propose Chandra observations of the prototypical ultracompact HII (UCHII) region, G29.96-0.02. The proposed observations will provide direct evidence for this wind-cloud interaction. This target with its cometary morphology, low obscuration, and well-studied flow pattern in the surrounding gas, is optimal for X-ray study of the shocked wind plasma. Measuring the X-ray luminosity, spectrum and morphology of G29.96-0.02 will provide critical quantitative insights into the complex astrophysics of UCHIIs which cannot be acquired at long wavelengths.

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