Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...333l..83m&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 333, Oct. 15, 1988, p. L83-L86.
Astronomy and Astrophysics
Astronomy
52
H Ii Regions, Interstellar Masers, Interstellar Matter, Methyl Alcohol, Star Formation, Very Large Scale Integration, Brightness Temperature, Line Spectra, Maser Outputs, Radio Sources (Astronomy)
Scientific paper
Very long baseline interferometric observations of 20 → 3-1E line of interstellar methanol (CH3OH) at 12.1 GHz toward three star-forming regions are reported. Toward the ultracompact H II region W3(OH), the methanol maser emission is found to emanate from multiple compact regions that are projected against the continuum emission. Individual maser spots have sizes of less than 0arcsec.002 (7×1013cm) and brightness temperatures greater than 2×1010K. For NGC 7538 and Cepheus A, the authors have determined absolute positions for one emission feature.
Batrla Wolfgang
Johnston Ken J.
Menten Karl. M.
Moran James Michael
Reid Mark J.
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