A search for methanol masers at 44 GHz

Astronomy and Astrophysics – Astronomy

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Early Stars, Interstellar Masers, Line Spectra, Methyl Alcohol, Dark Matter, Far Infrared Radiation, Infrared Astronomy Satellite

Scientific paper

Results of an extensive survey of young stellar objects in the methanol line 7(0) - 6(1)A(+) (44 GHz) are presented. Three new masers were detected towards cold IRAS sources in the dark clouds L 291 (GGD 27), L 379, and IC 1396 N. The new masers were also observed in 4(-1) - 3(0) E (36 GHz) and 1(0) - 0(0)A(+) (48 GHz) methanol transitions. A relationship between methanol masers and high-velocity flows with dense disks around central sources is proposed, and a possible correlation between maser emission and their intensity in the FIR is suggested.

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