Further studies on the champagne phase of GM 24 (IRAS 17136-3617)

Details Further studies on the champagne phase of GM 24 (IRAS 17136-3617) Further studies on the champagne phase of GM 24 (IRAS 17136-3617)

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...409..269g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 409, no. 1, p. 269-274.

Astronomy and Astrophysics

Astronomy

4

Continuous Radiation, H Ii Regions, Infrared Astronomy Satellite, Interstellar Matter, Ionized Gases, Very Large Array (Vla), Gas Flow, H Alpha Line, Interstellar Masers, Recombination Reactions, Water Masers

Scientific paper

The H II region associated with GM 24 has been observed with the VLA at the 3.6 and 6 cm continuum, as well as at the H92-alpha recombination line and the H2O maser line; these observations have suggested a 'champagne' flow of ionized gas. Spectral data indicate two velocity components toward GM 24 that are separated by about 10 km/sec. The weaker, extended velocity component is redshifted by about 10 km/sec relative to the velocity of the ambient molecular cloud. It is hypothesized that this velocity component constitutes emission from the ionized gas, which is breaking out of the cloud and expanding away from the direction of observation.

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