The discovery of a new masering transition of interstellar methanol

Details The discovery of a new masering transition of interstellar methanol The discovery of a new masering transition of interstellar methanol

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...147l..19w&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 147, no. 1, June 1985, p. L19-L22.

Astronomy and Astrophysics

Astrophysics

40

Astronomical Spectroscopy, Interstellar Masers, Interstellar Matter, Methyl Alcohol, Electron Transitions, H Ii Regions, Spectral Energy Distribution

Scientific paper

A spectral line of strength ≡50 Jy has been detected towards the compact H II region W3(OH). From the agreement with the laboratory line frequency, the authors identify this line with the Jk = 21-30 transition of E-type methanol. If, as with the 92-101 A+ line, the emission region is less than 1arcsec in diameter, the line brightness temperature is >1.5×105K. The phenomenon appears to be relatively unusual however since a short survey of galactic sources in the 21-30 E line revealed no other sources of this kind.

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