X-ray Flows from the Giant HII Region NGC 3576

Details X-ray Flows from the Giant HII Region NGC 3576 X-ray Flows from the Giant HII Region NGC 3576

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1388t&link_type=abstract

Chandra Proposal ID #05200250

Physics

Chandra Proposal Id #05200250

Scientific paper

We propose a 60-ksec ACIS observation of the Galactic giant HII region NGC 3576, to image and confirm a soft X-ray bubble suggested by ROSAT data and likely due to flows created by the winds of OB stars powering the HII region. This observation will also reveal the massive stellar engine powering NGC 3576, shredding the molecular cloud from which it formed, and triggering a new generation of massive star formation. This target bears many similarities to the edge-on `blister' HII region M 17 (the Omega Nebula), where such soft X-ray flows were first confidently detected by Chandra. We hope to establish whether these wind-blown bubbles, filled with hot X-ray-emitting gas, are ubiquitous in blister HII regions (given O stars of sufficient wind power) or unique to M 17 for some reason.

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