X-ray emission of OH megamaser galaxies |
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| Authors: | R A Kandalyan V V Hambaryan H A Sabat |
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| Institution: | (1) V. A. Ambartsumyan Byurakan Astrophysical Observatory, Armenia;(2) Institute of Astronomy and Space Studies, Al Al-Bayt University, Jordan;(3) Potsdam Astrophysics Institute, Germany |
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| Abstract: | 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.
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Translated from Astrofizika, Vol. 50, No. 2, pp. 171–182 (May 2007). |
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| Keywords: | maser galaxies x-ray radiation |
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