J/A+A/659/A13 PG 2130+099 narrowband light curves (Fian+, 2022)
Continuum reverberation mapping of the quasar PG 2130+099.
Fian C., Chelouche D., Kaspi S., Sobrino Figaredo C., Catalan S., Lewis T.
<Astron. Astrophys. 659, A13 (2022)>
=2022A&A...659A..13F 2022A&A...659A..13F (SIMBAD/NED BibCode)
ADC_Keywords: QSOs ; Spectra, optical ; Spectra, infrared
Keywords: accretion, accretion disks - galaxies: active - galaxies: Seyfert -
galaxies: photometry - quasars: individual: PG 2130+099
Abstract:
We present the results of an intensive six-month optical continuum
reverberation mapping campaign of the Seyfert 1 galaxy PG 2130+099 at
redshift z=0.063. The ground- based photometric monitoring was
conducted on a daily basis with the robotic 46cm telescope of the Wise
observatory located in Israel. Specially designed narrowband filters
were used to observe the central engine of the active galactic nucleus
(AGN), avoiding line contamination from the broad-line region (BLR).
We aim to measure inter- band continuum time lags across the optical
range and determine the size-wavelength relation for this system.
PG 2130+099 displays correlated variability across the optical range,
and we successfully detect significant time lags of up to 3 days
between the multiband light curves. While a continuum reprocessing
model can fit the data reasonably well, our derived disk sizes are a
factor of 2-6 larger than the theoretical disk sizes predicted from
the AGN luminosity estimate of PG 2130+099. This result is in
agreement with previous studies of AGN/quasars and suggests that the
standard Shakura- Sunyaev disk theory has limitations in describing
AGN accretion disks.
Description:
We conducted an optical RM monitoring campaign with homogeneous and
high-cadence (about ∼1 day) observations lasting for six months from
June to December 2019, using the C18 telescope of the WISE observatory
in Israel. Through a redshift of z=0.063, the emission line free
continuum bands at 4250, 5975, 7320, and 8025Å mainly trace the AGN
continuum variations. We used two methods, the traditional
point-spread function (PSF) photometry and the recently developed
proper image subtraction technique, to independently perform the
extraction of the continuum light curves. Tables 1-8 contain the PSF
photometry and proper image subtraction light curves of the Seyfert-1
galaxy PG 2130+099.
Objects:
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RA (2000) 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 75 136 Normalized NB4250 light curve (PSF photometry)
table2.dat 75 133 Normalized NB5975 light curve (PSF photometry)
table3.dat 75 130 Normalized NB7320 light curve (PSF photometry)
table4.dat 75 130 normalized NB8025 light curve (PSF photometry)
table5.dat 75 134 Normalized NB4250 light curve (Image Subtraction)
table6.dat 75 131 Normalized NB5975 light curve (Image Subtraction)
table7.dat 75 130 Normalized NB7320 light curve (Image Subtraction)
table8.dat 75 128 Normalized NB8025 light curve (Image Subtraction)
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See also:
J/ApJ/890/71 : PG2130+099 5100Å continuum + emission lines LCs (Hu+, 2020)
Byte-by-byte Description of file: table?.dat
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Bytes Format Units Label Explanations
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1- 24 E24.19 d MJD Modified Julian Date
26- 50 E25.19 --- Flux Flux (in arbitrary units)
52- 75 E24.19 --- e_Flux Error in flux (in arbitrary units)
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Acknowledgements:
Carina Fian, carinafian(at)mail.tau.ac.il
(End) Carina Fian [Tel-Aviv University], Patricia Vannier [CDS] 15-Feb-2022