Extragalactic H2O Megamaser Sources: Central Black Holes, Nuclear X-ray and Maser Emissions

Details Extragalactic H2O Megamaser Sources: Central Black Holes, Nuclear X-ray and Maser Emissions Extragalactic H2O Megamaser Sources: Central Black Holes, Nuclear X-ray and Maser Emissions

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008chjaa...8..547s&link_type=abstract

Chinese Journal of Astronomy and Astrophysics, Volume 8, Issue 5, pp. 547-554 (2008).

Astronomy and Astrophysics

Astrophysics

5

Scientific paper

Extragalactic H2O megamasers are typically found within the innermost few parsecs of active galaxy nuclei (AGN) and the maser emission is considered to be excited most likely by the X-ray irradiation of the AGN. We investigate a comprehensive sample of extragalactic H2O masers in a sample of 38 maser host AGN to check potential correlations of the megamaser emission with parameters of the AGN, such as X-ray luminosity and black hole (BH) masses. We find a relation between the maser luminosities and BH masses, LH2OproptoMBH3.6+/-0.4, which supports basically the theoretical prediction. The relation between the maser emission and X-ray emission is also confirmed.

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