NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-24 T10:10:20 PDT
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For refcode 2005PASJ...57..587S:
Retrieve 93 NED objects in this reference.
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NED Abstract

Copyright by Astronomical Society of Japan. 2005PASJ...57..587S Water-Vapor Maser Survey for Active Galactic Nuclei: A Megamaser in NGC 6926 Sato, Naoko; Yamauchi, Aya; Ishihara, Yuko; Sorai, Kazuo; Kuno, Nario; Nakai, Naomasa; Balasubramanyam, Ramesh; Hall, Peter Abstract. We made a survey of water-vapor maser emission for 93 AGNs with the Nobeyama 45-m and Mopra 22-m telescopes from 1999 to 2002. A megamaser was detected in a Seyfert 2 galaxy, NGC 6926, at a distance of 80Mpc, in 2002 June. [Greenhill et al. (2003a) have also reported a detection of the megamaser at the close date.] The peak flux density was 110mJy, and the total isotropic luminosity was 340 L_sun_. The maser shows triply peaked spectrum, suggesting an edge-on disk. A narrow-line feature of the maser components at V_LSR_ = 6001 km s^-1^ was strongly variable with a time scale of a few tens of days, and the variation should be of intrinsic origin. We also showed a possibility of variability of water-vapor maser emission of a megamaser previously detected in a Seyfert/ultraluminous FIR galaxy, NGC 6240. Key words: galaxies: active, galaxies: individual (NGC 6240, NGC 6926), galaxies: Seyfert, masers, radio lines: galaxies
Retrieve 93 NED objects in this reference.
Please click here for ADS abstract

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