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Water Maser Emission from Dusty Clouds in AGNs

Published online by Cambridge University Press:  12 April 2016

John F. Kartje ,
Arieh Königl  and
Moshe Elitzur
John F. Kartje
Affiliation:
Dept. of Astronomy & Astrophysics, Univ. of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637, U.S.A.
Arieh Königl
Affiliation:
Dept. of Astronomy & Astrophysics, Univ. of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637, U.S.A.
Moshe Elitzur
Affiliation:
Dept. of Physics & Astronomy, Univ. of Kentucky, Lexington, KY 40506, U.S.A.

Abstract

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A natural site for water maser emission in AGNs is provided by dusty gas with properties characteristic of broad line region (BLR) clouds. Radiation shielding by dust in the clouds is critical for allowing molecular gas to exist ≤ 1 pc from the central engine. Thus, the innermost radius at which such masers appear should correspond to the grain sublimation radius rsub. We suggest a dynamical model in which the masing clouds are embedded within a magnetized accretion disk wind.

Type
Part 15. Poster Papers
Information
International Astronomical Union Colloquium , Volume 163: Accretion Phenomena and Related Outflows , 1997 , pp. 738 - 739
Copyright
Copyright © Astronomical Society of the Pacific 1997

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