J/A+A/642/A59 PKS 1510-089 spectroscopic light curves (Rakshit, 2020)
Broad line region and black hole mass of PKS 1510-089 from spectroscopic
reverberation mapping.
Rakshit S.
<Astron. Astrophys. 642, A59 (2020)>
=2020A&A...642A..59R 2020A&A...642A..59R (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Spectroscopy ; Spectra, optical
Keywords: galaxies: active - galaxies: nuclei -
galaxies: individual: PKS 1510-089 -
quasar: supermassive black holes - techniques: spectroscopic
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
FeII 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, 2) 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+4.03.2
(64.7+27.110.6) light-days for Hβ (Hγ). Using the line
of 1262±247km/s measured from the root-mean-square spectrum, the
black hole mass of PKS 1510-089 is estimated to be
5.71+0.620.58x107M☉.
Description:
For this work, optical photometry and spectroscopic data from the
Steward Observatory spectropolarimetric monitoring project, a support
program for the Fermi Gamma-Ray Space Telescope, was used.
Observations were carried out using the spectrophotometric instrument
SPOL with a 600mm-1 grating, which provides a wavelength coverage of
4000-7550Å and a spectral resolution of 15-25Å depending on the
slit width. Observations were performed using the 2.3m Bok Telescope
on Kitt Peak and the 1.54m Kuiper Telescope on Mount Bigelow in
Arizona.
The final 5100Å, Hβ, and Hγ spectroscopic light curves
are presented in Table 1.
Objects:
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RA (2000) DE Designation(s)
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15 12 50.53 -09 05 59.8 PKS 1510-089 = QSO J1512-0906
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 81 271 Spectrosocpic data
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 5 I5 d MJD Modified Julian date
7- 11 F5.3 10-17W/m2/nm F5100 Monochromatic continuum flux
at 5100Å
13- 17 F5.3 10-17W/m2/nm e_F5100 rms uncertainty on F5100
19- 24 F6.3 10-18W/m2 FHb Hβ line flux
26- 30 F5.3 10-18W/m2 e_FHb rms uncertainty on FHb
32- 37 F6.3 10-18W/m2 FHg Hγ line flux
39- 43 F5.3 10-18W/m2 e_FHg rms uncertainty on FHg
45- 49 F5.3 10-17W/m2/nm F5100D Detrended monochromatic continuum flux
at 5100Å
51- 55 F5.3 10-17W/m2/nm e_F5100D rms uncertainty on F51005D
57- 62 F6.3 10-18W/m2 FHbD Detrended Hβ line flux
64- 68 F5.3 10-18W/m2 e_FHbD rms uncertainty on FHbD
70- 75 F6.3 10-18W/m2 FHgD Detrended Hγ line flux
77- 81 F5.3 10-18W/m2 e_FHgD rms uncertainty on FHgD
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Acknowledgements:
Suvendu Rakshit, suvenduat(at)gmail.com
(End) Patricia Vannier [CDS] 24-Jul-2020