dc.contributor.author |
Pandey, Shivangi |
|
dc.contributor.author |
Rakshit, Suvendu |
|
dc.contributor.author |
Woo, Jong-Hak |
|
dc.contributor.author |
Stalin, C. S |
|
dc.date.accessioned |
2022-10-25T08:30:15Z |
|
dc.date.available |
2022-10-25T08:30:15Z |
|
dc.date.issued |
2022-10 |
|
dc.identifier.citation |
Monthly Notices of the Royal Astronomical Society, Vol. 516 , No. 2 , pp. 2671–2682 |
en_US |
dc.identifier.issn |
1365-2966 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/8077 |
|
dc.description |
Restricted Access |
en_US |
dc.description.abstract |
To understand the mass distribution and co-evolution of supermassive black holes with their host galaxy, it is crucial to measure the black hole mass of AGN. Reverberation mapping is a unique tool to estimate the black hole masses in AGN. We performed spectroscopic reverberation study using long-term monitoring data with more than 100 spectra of a radio-loud quasar PKS 0736 + 017 to estimate the size of the broad-line region (BLR) and black hole mass. The optical spectrum shows strong H β and H γ emission lines. We generated the light curves of 5100 Å continuum flux (f5100), H β, and H γ. All the light curves are found to be strongly variable with fractional variability of 69 per cent, 21 per cent, 30 per cent for V-band, H β, and H γ light curves, respectively. Along with the thermal contribution, non-thermal emission contributes to the estimated continuum luminosity at 5100 Å. Using different methods, e.g. CCF, JAVELIN, von-neumann, we estimated the size of the BLR, which is found to be 66.4+6.0−4.2−4.2+6.0 light days in the rest frame. The BLR size combined with the line width of H β provides a black hole mass of 7.32+0.89−0.91×107M⊙−0.91+0.89×107M⊙. The source closely follows the BLR size–luminosity relation of AGN. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Oxford University Press on behalf of Royal Astronomical Society |
en_US |
dc.relation.uri |
https://doi.org/10.1093/mnras/stac2418 |
|
dc.rights |
© 2022 The Author(s) |
|
dc.subject |
Techniques: spectroscopic |
en_US |
dc.subject |
Galaxies: active |
en_US |
dc.subject |
Galaxies: individual: PKS0736 + 017 |
en_US |
dc.title |
Spectroscopic reverberation mapping of Quasar PKS 0736 + 017: broad-line region and black-hole mass |
en_US |
dc.type |
Article |
en_US |