J/ApJ/890/71 5100Å continuum & emission lines LCs of PG2130+099 (Hu+, 2020)
Broad-line region of the quasar PG 2130+099 from a two-year reverberation
mapping campaign with high cadence.
Hu C., Li Y.-R., Du P., Zhang Z.-X., Li S.-S., Huang Y.-K., Lu K.-X.,
Bai J.-M., Ho L.C., Bian W.-H., Brotherton M.S., Yuan Y.-F., Aceituno J.,
Winkler H., Wang J.-M., (the SEAMBH Collaboration)
<Astrophys. J., 890, 71-71 (2020)>
=2020ApJ...890...71H 2020ApJ...890...71H (SIMBAD/NED BibCode)
ADC_Keywords: QSOs; Spectra, optical
Keywords: Supermassive black holes; Seyfert galaxies; Active galactic nuclei
Quasars; Reverberation mapping; Time domain astronomy
Abstract:
As one of the most interesting Seyfert 1 galaxies, PG 2130+099 has
been the target of several reverberation mapping (RM) campaigns over
the years. However, its measured broad Hβ line responses have
been inconsistent, with time lags of ∼200days, ∼25days, and ∼10days
being reported for different epochs while its optical luminosity
changed no more than 40%. To investigate this issue, we conducted a
new RM-campaign with homogenous and high cadence (about ∼3days) for
two years during 2017-2019 to measure the kinematics and structure of
the ionized gas. We successfully detected time lags of broad Hβ,
HeII, HeI, and FeII lines with respect to the varying 5100Å
continuum, revealing a stratified structure that is likely virialized
with Keplerian kinematics in the first year of observations, but an
inflow kinematics of the broad-line region from the second year. With
a central black hole mass of 0.97-0.18+0.15x107M☉,
PG2130+099 has an accretion rate of 102.1±0.5LEddc-2, where
LEdd is the Eddington luminosity and c is speed of light, implying
that it is a super-Eddington accretor and likely possesses a slim,
rather than thin, accretion disk. The fast changes of the ionization
structures of the three broad lines remain puzzling.
Description:
The monitoring of the PG2130+099 quasar was carried out at the CAHA
2.2m telescope with the Calar Alto Faint Object Spectrograph (CAFOS)
for 53 nights between 2017 June 22 and 2018 January 4, and 58 nights
between 2018 May 31 and 2019 January 16.
The photometric images were obtained by CAFOS in direct imaging mode
with a Johnson V filter. Typically, three exposures of 20s were taken
each individual night.
The spectra of PG 2130+099 were taken using CAFOS with Grism G-200.
The resulting spectra cover the observed-frame wavelength range of
4000-8500Å. For the object, two exposures of 600s were taken during
each individual night, and the typical signal-to-noise ratio of the
spectrum for a single exposure is ∼80 per pixel at rest frame 5100Å.
In 2018, the object was also monitored by two other telescopes: the
Lijiang 2.4m telescope and the Sutherland 1.9m telescope.
See Section 2.3.
Objects:
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RA (ICRS) DE Designation(s)
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21 32 27.82 +10 08 19.3 PG 2130+099 = Mrk 1513
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 136 111 Light curves of 5100Å continuum and
several lines
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See also:
J/ApJ/613/682 : AGN central masses & broad-line region sizes (Peterson+, 2004)
J/ApJ/698/895 : Variations in QSOs optical flux (Kelly+, 2009)
J/ApJ/753/L2 : Reverberation mapping of AGNs (Assef+, 2012)
J/ApJ/755/60 : Reverberation mapping for 5 Seyfert 1 galaxies (Grier+, 2012)
J/ApJ/779/109 : Long-term monitoring of NGC 5548 (Peterson+, 2013)
J/ApJ/782/45 : SEAMBHs. I. Mrk 142, Mrk 335, and IRAS F12397+3333 (Du+, 2014)
J/ApJS/214/23 : IR spectra and photometry of z<0.5 quasars (Shi+, 2014)
J/ApJS/216/17 : AKARI 2.5-5um spectra of nearby Type-1 AGNs (Kim+, 2015)
J/ApJS/217/26 : Lick AGN monitoring 2011: light curves (Barth+, 2015)
J/ApJ/806/22 : SEAMBHs IV. Hβ time lags (Du+, 2015)
J/ApJ/818/L14 : RM AGNs accretion rates and BH masses (Du+, 2016)
J/MNRAS/471/59 : Intrinsic AGN SEDs in PG quasars (Lani+, 2017)
J/ApJ/854/158 : z<0.5 PG quasars IR energy distributions (Shangguan+, 2018)
J/AJ/157/148 : Blueshift of the CIV broad emission line in QSOs (Ge+, 2019)
J/ApJ/877/23 : SEAMBHs. X. RM campaign compilation (Lu+, 2019)
J/ApJ/886/33 : MIR RM analysis of 87 z<0.5 PG AGNs (Lyu+, 2019)
J/ApJ/886/42 : Reverberation mapping & opt. spectra data of AGNs (Du+, 2019)
J/ApJ/899/82 : Compilation of BH and host properties (Bohn+, 2020)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 16 F16.8 d JD Julian Date of observation
18- 28 E11.5 cW/m2/nm F5100 [4.6e-15/6e-15] 5100Å continuum flux,
in erg/s/cm2/Å units
30- 40 E11.5 cW/m2/nm e_F5100 Uncertainty in F5100
42- 52 E11.5 mW/m2 FHbeta [4.8e-13/6.2e-13] Hβ line flux,
in erg/s/cm2 units
54- 64 E11.5 mW/m2 e_FHbeta Uncertainty in FHbeta
66- 76 E11.5 mW/m2 FHeI [4.7e-14/7.3e-14] He I line flux,
in erg/s/cm2 units
78- 88 E11.5 mW/m2 e_FHeI Uncertainty in FHeI
90-100 E11.5 mW/m2 FHeII [2.4e-14/1.1e-13] He II line flux,
in erg/s/cm2 units
102-112 E11.5 mW/m2 e_FHeII Uncertainty in FHeII
114-124 E11.5 mW/m2 FFe [3.6e-13/5e-13] Fe II line flux,
in erg/s/cm2 units
126-136 E11.5 mW/m2 e_FFe Uncertainty in FFe
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 29-Jul-2021