SIMBAD references

1995A&A...294..825V - Astronomy and Astrophysics, volume 294, 825-830 (1995/2-3)

The discovery of methanol masers at 107 GHz.

VAL'TTS I.E., DZURA A.M., KALENSKII S.V., SLYSH V.I., BOOTH R.S. and WINNBERG A.

Abstract (from CDS):

A new methanol maser line at 107GHz was discovered in five galactic sources. All of them are known Class II methanol masers. Toward Class I methanol maser sources, the 107-GHz line was found in absorption, or as rather weak quasi-thermal emission sources. The detection of these new methanol masers supports an assumption that the level population inversion is due to overpopulation of some K ladders relative to neighbouring ladders.

Abstract Copyright:

Journal keyword(s): line: profiles - masers - molecular processes - ISM: molecules - radio lines: ISM

Simbad objects: 50

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