The fourth OH megamaser : Markarian 273.
Abstract
A fourth OH megamaser has been found in the luminous IR galaxy Mrk 273 (= U08696). The characteristics of this masing galaxy are similar to those of the other powerful extragalactic masers in NGC 3690, IC 4553, and Mrk 231. The 1667 MHz line luminosity of Mrk 273 is 335 L solar luminosities. The IR photon-to-OH photon conversion efficiency is calculated for all OH megamasers and is found to be close to 1 percent.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- November 1985
- DOI:
- 10.1086/184565
- Bibcode:
- 1985ApJ...298L..51B
- Keywords:
-
- Hydroxyl Emission;
- Infrared Radiation;
- Interstellar Masers;
- Seyfert Galaxies;
- Emission Spectra;
- Line Spectra;
- Radial Velocity;
- Astrophysics