Compact HII regions toward Methanol Maser traced sources of Massive Star Formation

Details Compact HII regions toward Methanol Maser traced sources of Massive Star Formation Compact HII regions toward Methanol Maser traced sources of Massive Star Formation

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011yera.confe...5a&link_type=abstract

The 41st Young European Radio Astronomers Conference, held at University of Manchester/Jodrell Bank Observatory, 18-20 July 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the results of 8.64-GHz radio continuum observations made during the Methanol MultiBeam (MMB) high resolution 6.7GHz methanol maser positioning campaign (conducted using Australia Telescope Compact Array (ATCA)). We categorise the 105 observed continuum sources as either Hyper-Compact, Ultra-Compact or Compact HII regions and attempt to remove distance ambiguity based on source size and emission measure estimates.
As both HII regions and the 6.7GHz methanol maser are both massive star formation tracers they have been used in proposed evolutionary tracer timelines (e.g Breen et al. 2010), we investigate whether there are any physical differences between closely associated maser-HII region pairs and those for which the separation would suggest they are associated with different protostellar objects.

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