Discovery of nine new extragalactic OH megamasers - The role and efficiency of far-infrared radiation

Details Discovery of nine new extragalactic OH megamasers - The role and efficiency of far-infrared radiation Discovery of nine new extragalactic OH megamasers - The role and efficiency of far-infrared radiation

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989crasm.308..287m&link_type=abstract

Academie des Sciences (Paris), Comptes Rendus, Serie II - Mecanique, Physique, Chimie, Sciences de l'Univers, Sciences de la Ter

Astronomy and Astrophysics

Astronomy

25

Hydroxyl Radicals, Infrared Sources (Astronomy), Interstellar Masers, Extragalactic Radio Sources, Far Infrared Radiation, Luminosity

Scientific paper

Based on observations obtained by the Nancay radiotelescope, nine strong IRAS sources have been identified as extragalactic OH megamasers. The efficiency of the far-infrared radiation is shown to depend on the radial velocity spread within the molecular clouds. The 1.667-MHz OH line luminosity is found to be proportional to the square of the far-infrared luminosity, supporting the scenario of maser pumping by far-infrared radiation.

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