The 44 GHz methanol masers - Results of an extensive survey in the 7(0)-6(1)A(+) line

Details The 44 GHz methanol masers - Results of an extensive survey in the 7(0)-6(1)A(+) line The 44 GHz methanol masers - Results of an extensive survey in the 7(0)-6(1)A(+) line

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...240..116b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 240, no. 1, Dec. 1990, p. 116-122.

Astronomy and Astrophysics

Astronomy

38

H Ii Regions, Interstellar Masers, Methyl Alcohol, Microwave Emission, Water Masers, Astronomical Spectroscopy, Molecular Clouds, Sky Surveys (Astronomy), Stellar Evolution

Scientific paper

A search for emission in the 44-GHz 7(0)-6(1)A(+) transition of CH3OH toward 124 known water masers associated with star-formation regions and evolved stars was conducted. Emission was detected toward 16 sources. In most sources maser action was observed, indicated by narrow intense spectral features. The methanol maser velocities were similar to the systemic velocities of the regions in question and showed no high-velocity features. Several new maser components were found in regions containing previously known methanol masers.

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