Aperture synthesis observations of recombination lines from compact H II regions. II - The radio sources near K 3-50

Details Aperture synthesis observations of recombination lines from compact H II regions. II - The radio sources near K 3-50 Aperture synthesis observations of recombination lines from compact H II regions. II - The radio sources near K 3-50

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....94..259v&link_type=abstract

Astronomy and Astrophysics, vol. 94, no. 2, Feb. 1981, p. 259-264. Research supported by the Nederlandse Organisatie voor Zuive

Astronomy and Astrophysics

Astronomy

11

Astronomical Spectroscopy, H Alpha Line, H Ii Regions, Radio Sources (Astronomy), Synthetic Apertures, Absorption Spectra, Astronomical Maps, Flow Velocity, Formaldehyde, Hydrogen Recombinations

Scientific paper

Observations of the H 109 (alpha) line with the Westerbork Synthesis Radio Telescope showed compact H II regions near K 3-50. The H2CO absorption detectors were directed towards the brightest components A and C using the Effelsberg 100 m telescope; the more compact line sources of the H II (alpha) have lower line to continuum ratios due to pressure broadening, with very strong H2CO absorption towards C. The most compact H II regions A and C velocities differ from the neutral material by -7 and +7 km/s, indicating that both sources are examples of the 'blister model'.

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