Low Frequency Turnovers of Compact Radio Sources in NGC 247

Details Low Frequency Turnovers of Compact Radio Sources in NGC 247 Low Frequency Turnovers of Compact Radio Sources in NGC 247

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.1511s&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #15.11; Bulletin of the American Astronomical Society, V

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We present high angular resolution VLA images of NGC 247 at 20 and 6 cm. Multiple compact radio sources have been identified in this galaxy and the spectral index for each source was calculated. Two compact sources near the nucleus of the galaxy show spectral turnovers occurring at 20 cm and these sources have been identified as candidate ultracompact HII regions. Ultracompact HII regions are of interest because they have high enough densities to cause internal absorption and are sites of current star formation. We discuss the properties of the candidate ultracompact HII regions and compare these sources with other ultracompact HII regions in nearby galaxies.

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