Changing look AGN Mrk 590: Broad-line region and black hole mass from photometric reverberation mapping
- Title
- Changing look AGN Mrk 590: Broad-line region and black hole mass from photometric reverberation mapping
- Creator
- Mandal A.K.; Schramm M.; Rakshit S.; Stalin C.S.; Vijarnwannaluk B.; Rujopakarn W.; Poshyachinda S.; Kouprianov V.V.; Haislip J.B.; Reichart D.E.; Sagar R.; Mathew B.
- Description
- We present the results of photometric reverberation mapping observations on the changing look active galactic nucleus Mrk 590 at z = 0.026. The observations were carried out from 2018 July to December using broad-bandB-,R-, and narrow-band H ? and S ii filters. The B band traces the continuum emission from the accretion disc, the R band encompasses both the continuum emission from the accretion disc and the redshifted H ? line from the broad-line region (BLR), the S ii band contains the redshifted H ? emission and the H ? band traces the continuum emission underneath the S ii band. All the light curves showed strong variation with a fractional root-mean-square variation of 0.132 0.001 in the B band and 0.321 0.001 in H ? line. From cross-correlation function analysis, we obtained a delayed response of H ? line emission to the opticalB-band continuum emission of $21.44^{+1.49}_{-2.11}$ d in the rest frame of the source, corresponding to a linear size of the BLR of 0.018 pc. This is consistent with previous estimates using H ?. By combining the BLR size with the H ? line full width at half-maximum of 6478 240 km s-1 measured from a single-epoch spectrum obtained with the Subaru telescope, we derived a black hole mass of $1.96^{+0.15}_{-0.21}\times 10^8 {\rm M}_{\odot }$. 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
- Source
- Monthly Notices of the Royal Astronomical Society, Vol-508, No. 4, pp. 5296-5309.
- Date
- 2021-01-01
- Publisher
- Oxford University Press
- Subject
- galaxies: Active; galaxies: Seyfert; quasars: emission lines
- Coverage
- Mandal A.K., Indian Institute of Astrophysics, Block II, Koramangala, Bangalore, 560 034, India, Department of Physics, CHRIST Deemed to Be University, Hosur Road, Bangalore, 560 029, India; Schramm M., Graduate School of Science and Engineering, Saitama Univ. 255 Shimo-Okubo, Saitama City, 338-8570, Japan; Rakshit S., Aryabhatta Research Institute of Observational Sciences, Manora Peak, Nainital, 263002, India; Stalin C.S., Indian Institute of Astrophysics, Block II, Koramangala, Bangalore, 560 034, India; Vijarnwannaluk B., Astronomical Institute, Tohoku University, 6-3 Aramaki, Miyagi, 980-8578, Japan; Rujopakarn W., Department of Physics, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok, 10330, Thailand, National Astronomical Research Institute of Thailand, 260 Moo 4, Chiangmai, 50180, Thailand; Poshyachinda S., National Astronomical Research Institute of Thailand, 260 Moo 4, Chiangmai, 50180, Thailand; Kouprianov V.V., Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Campus Box 3255, Chapel Hill, 27599-3255, NC, United States, Central (Pulkovo) Observatory of the Russian Academy of Sciences 196140, 65/1 Pulkovskoye Ave, Saint Petersburg, Russian Federation; Haislip J.B., Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Campus Box 3255, Chapel Hill, 27599-3255, NC, United States; Reichart D.E., Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Campus Box 3255, Chapel Hill, 27599-3255, NC, United States; Sagar R., Indian Institute of Astrophysics, Block II, Koramangala, Bangalore, 560 034, India; Mathew B., Department of Physics, CHRIST Deemed to Be University, Hosur Road, Bangalore, 560 029, India
- Rights
- All Open Access; Green Open Access
- Relation
- ISSN: 358711; CODEN: MNRAA
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Mandal A.K.; Schramm M.; Rakshit S.; Stalin C.S.; Vijarnwannaluk B.; Rujopakarn W.; Poshyachinda S.; Kouprianov V.V.; Haislip J.B.; Reichart D.E.; Sagar R.; Mathew B., “Changing look AGN Mrk 590: Broad-line region and black hole mass from photometric reverberation mapping,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 25, 2025, https://archives.christuniversity.in/items/show/15550.