X-ray emission of OH megamaser galaxies
| Autor: | H. A. Sabat, V. V. Hambaryan, R. A. Kandalyan |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Astrophysics. 50:135-143 |
| ISSN: | 1573-8191 0571-7256 |
| Popis: | The properties of OH megamaser galaxies in the x-ray region are discussed. Observational data from the XMM-Newton x-ray satellite are presented for three megamasers, IRAS 01418+1651, IRAS 11010+4107, and IRAS 13218+0552. Based on a sample of OH megamaser galaxies it is shown that the x-ray and OH emission are closely coupled. Megamaser emission also correlates with the column density of the medium and the OH emissivity increases as the square of the column density. The results of this study indicate that in OH megamaser galaxies an active nucleus, x-ray heating of molecules, and saturation of the maser emission can play an important role. In some megamasers, active star formation may be the dominant source. |
| Databáze: | OpenAIRE |
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