Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/5550
Title: Mass of the black hole in the Seyfert 1.5 galaxy H 0507+164 from reverberation mapping
Authors: Stalin, C. S
Jeyakumar, S
Coziol, R
Pawase, R. S
Thakur, S. S
Keywords: Galaxies: active
Galaxies: individual: H 0507+164
Galaxies: Seyfert
Issue Date: Sep-2011
Publisher: Wiley-Blackwell
Citation: Monthly Notices of the Royal Astronomical Society, Vol. 416, No. 1, pp. 225–231
Abstract: We present the results of our optical monitoring campaign of the X-ray source H 0507+164, a low-luminosity Seyfert 1.5 galaxy at a redshift z= 0.018. Spectroscopic observations were carried out during 22 nights in 2007, from 2007 November 21 to 2007 December 26. Photometric observations in the R band for 13 nights were also obtained during the same period. The continuum and broad-line fluxes of the galaxy were found to vary during our monitoring period. The R-band differential light curve with respect to a companion star also shows a similar variability. Using cross-correlation analysis, we estimated a time-delay of τcen= 3.01+0.42− 1.84 d (in the rest frame) of the response of the broad Hβ line fluxes to the variations in the optical continuum at 5100 Å. Using this time-delay and the width of the Hβ line, we estimated the radius for the broad-line region of 2.53+0.35− 1.55× 10−3 pc and a black hole mass of 9.62+0.33− 3.73× 106 M⊙.
Description: Restricted Access
URI: http://hdl.handle.net/2248/5550
Appears in Collections:IIAP Publications
Publications based on data from IAO, Hanle

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