MRK 273 - A new OH megamaser

Details MRK 273 - A new OH megamaser MRK 273 - A new OH megamaser

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...151l...7b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 151, no. 2, Oct. 1985, p. L7-L9.

Astronomy and Astrophysics

Astrophysics

27

Absorption Spectra, Hydroxyl Emission, Interstellar Masers, Peculiar Galaxies, Radio Spectra, Seyfert Galaxies, Spectral Line Width, Centimeter Waves, Hydrogen Ions, Infrared Radiation, Linear Polarization, Molecular Clouds, Radiant Flux Density

Scientific paper

A new strong OH maser and a broad HI absorption line have been detected in the peculiar galaxy Mrk 273 with the Nancay radio telescope as part of a survey of galaxies with strong infra-red emission. Mrk 273 has most of its properties comparable to those of the 3 other galaxies in which powerful OH megamasers have been detected: continuum flux, broad emission component in the OH main line, very broad HI absorption line, high value of the IR to blue luminosity ratio. It can be interpreted with the continuum amplification model (Baan and Haschick, 1984; Baan, 1985) according to which the maser emission is due to the amplification of the radio continuum emission in the nucleus by foreground molecular clouds.

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