Broad line region and black hole mass of PKS 1510-089 from spectroscopic reverberation mapping
Abstract
Reverberation results of the flat spectrum radio quasar PKS 1510-089 from 8.5 years of spectroscopic monitoring carried out at Steward Observatory over nine observing seasons between December 2008 and June 2017 are presented. Optical spectra show strong Hβ, Hγ, and Fe II emission lines overlying on a blue continuum. All the continuum and emission line light curves show significant variability with fractional root-mean-square variations of 37.30 ± 0.06% (f5100), 11.88 ± 0.29% (Hβ), and 9.61 ± 0.71% (Hγ); however, along with thermal radiation from the accretion disk, non-thermal emission from the jet also contributes to f5100. Several methods of time series analysis (ICCF, DCF, von Neumann, Bartels, JAVELIN, χ2) are used to measure the lag between the continuum and line light curves. The observed frame broad line region size is found to be 61.1-3.2+4.0 (64.7-10.6+27.1) light-days for Hβ (Hγ). Using the σline of 1262 ± 247 km s-1 measured from the root-mean-square spectrum, the black hole mass of PKS 1510-089 is estimated to be 5.71-0.58+0.62 × 107 M⊙.
Full Table 1 is only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/642/A59- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- October 2020
- DOI:
- 10.1051/0004-6361/202038324
- arXiv:
- arXiv:2007.07672
- Bibcode:
- 2020A&A...642A..59R
- Keywords:
-
- galaxies: active;
- galaxies: nuclei;
- galaxies: individual: PKS 1510-089;
- quasars: supermassive black holes;
- techniques: spectroscopic;
- Astrophysics - Astrophysics of Galaxies;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 12 pages, accepted for publication in A&