Multiwavelength study of the OH megamaser galaxy IRAS 1510 + 0724

Details Multiwavelength study of the OH megamaser galaxy IRAS 1510 + 0724 Multiwavelength study of the OH megamaser galaxy IRAS 1510 + 0724

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...195...71m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 195, no. 1-2, April 1988, p. 71-75. Research supported by the Japan-France Coo

Astronomy and Astrophysics

Astronomy

12

Hydroxyl Emission, Interstellar Masers, Radio Emission, Stellar Luminosity, H I Regions, Infrared Astronomy Satellite

Scientific paper

A low luminosity OH megamaser has been found in the moderately luminous IR galaxy IRAS 1510+0724. A combined optical, radio decimetric and radio millimetric study leads to the following conclusions: (1) The OH 1667 MHz isotropic luminosity LOH = 10 L_sun; is among the smallest observed among the class of megamasers, (2) the H I absorption and OH emission line profiles show strikingly similar velocity structures suggesting that they come from similar regions, (3) the star formation efficiency, as measured by the ratio of IR luminosity to molecular hydrogen mass, LIR/M(H2) = 48 (in solar units), and the relatively high dust temperature Td ≈ 40K are in the range expected for interacting or merging (high IR luminosity) IRAS galaxies.

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