Detection of H i, OH, CO, and Optical Imaging of the Distant Galaxy IRAS 12112+0305
Abstract
We report the detection of H I absorption, and OH and CO emission from the galaxy IRAS 12112+0305, which is receding from the Sun at about 7% of the speed of light. This galaxy, which appears to be an ongoing merger, radiates ~2 x 10^12^ solar luminosities in the infrared (λ = 8-1000 microns). The H I, OH, and CO spectra are indicative of large turbulent motions. From the millimeter wave CO observations, we infer a total mass of molecular gas of 4 x 10^10^ M_sun_. The OH emission in the 1667 MHz line is the most luminous extragalactic OH maser reported so far, with an isotropic luminosity of 1800 L_sun_.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1988
- DOI:
- 10.1086/185091
- Bibcode:
- 1988ApJ...324L..59M
- Keywords:
-
- Carbon Monoxide;
- Galaxies;
- H I Regions;
- Hydroxyl Emission;
- Infrared Astronomy Satellite;
- Infrared Sources (Astronomy);
- Interstellar Gas;
- Radio Sources (Astronomy);
- Far Infrared Radiation;
- Masers;
- Stellar Luminosity;
- Astrophysics;
- GALAXIES: INDIVIDUAL ALPHANUMERIC: IRAS 12112;
- 0305;
- INFRARED: SOURCES;
- INTERSTELLAR: MOLECULES;
- MASERS;
- RADIO SOURCES: 21 CM RADIATION