J/A+A/666/A11 Radius and luminosity of accretion discs (Papadakis+, 2022)
X-ray illuminated accretion discs and the quasar microlensing disc sizes.
Papadakis I.E., Dovciak M., Kammoun E.S.
<Astron. Astrophys. 666, A11 (2022)>
=2022A&A...666A..11P 2022A&A...666A..11P (SIMBAD/NED BibCode)
ADC_Keywords: Accretion ; Active gal. nuclei ; Models
Keywords: accretion, accretion discs - galaxies: active - quasars: general
Abstract:
We present the results of a study of the half-light radius-vs-black
hole mass and the luminosity-vs-black hole mass relations in active
galactic nuclei (AGN), when the disc is illuminated by the X-ray
corona. We use KYNSED, which is a recently developed spectral model
for the broad-band spectral energy distribution in AGN. We consider
non-illuminated Novikov-Thorne discs, and X-ray illuminated discs with
a Novikov-Thorne temperature radial profile, and a temperature profile
modified by a colour correction factor. We assume that the X-ray
luminosity is equal to the accretion power that is dissipated to the
disc below a transition radius, and we compute the half-light radius
and the disc luminosity for many black hole masses, and a wide range
of accretion rates, black hole spins, X-ray corona luminosity and
height. Non-illuminated discs are not consistent with the
observations, while X-ray illuminated discs can explain both the
half-light radius veresus black hole mass and the luminosity versus
black hole mass relation in AGN, for a wide range of physical
parameters. X-ray illuminated discs can explain the data if we observe
the gravitationally lensed quasars mainly face-on, but also if the
mean inclination angle is 60 degrees.
Description:
Accretion disc half-light radius at 2500 Angstroems and luminosity at
3000 Angstroems for all the model and the parameter combinations we
considered.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 71 10800 The half-light radius data
table5.dat 71 10800 The luminosity data
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Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 F5.2 10+8Msun BHM Black hole mass
(0.32, 1.00, 3.16, 10.00 or 31.60)
8- 9 I2 deg Incl Inclination (30 or 60)
12- 15 F4.2 --- Spin Black hole mass spin
(0.00, 0.30, 0.50, 0.80 or 1.00)
18- 21 F4.2 --- Mdot Accretion rate in Eddington units
(0.05, 0.10, 0.20, 0.30, 0.50 or 0.80)
24- 28 F5.2 --- Rtr Transition radius (in Risco)
(1.00, 1.50, 2.00, 3.00, 6.00 or 12.00)
30- 35 F6.2 --- Height Corona height, in Rg (0 for non
illuminated disc) (0.00, 5.00, 10.00,
20.00, 40.00, 60.00, 80.00 or 100.00)
38- 44 F7.3 10+14cm R1/2-NT Half-light radius for non illuminated
NT discs
47- 53 F7.3 10+14cm R1/2-NT+fcol Half-light radius for non illuminated
NT discs with colour correction
56- 62 F7.3 10+14cm R1/2-NT/X Half-light radius for illuminated
NT discs
65- 71 F7.3 10+14cm R1/2-NT/X+fcol Half-light radius for illuminated
NT discs with colour correction
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Byte-by-byte Description of file: table5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 F5.2 10+8Msun BHM Black hole mass
(0.32, 1.00, 3.16, 10.00 or 31.60)
8- 9 I2 deg Incl Inclination (30 or 60)
12- 15 F4.2 --- Spin BHM spin
(0.00, 0.30, 0.50, 0.80 or 1.00)
18- 21 F4.2 --- Mdot Accretion rate in Eddington units
(0.05, 0.10, 0.20, 0.30, 0.50 or 0.80)
24- 28 F5.2 --- Rtr Transition radius (in Risco)
(1.00, 1.50, 2.00, 3.00, 6.00 or 12.00)
30- 35 F6.2 --- Height Corona height, in Rg (0 for non
illuminated disc) (0.00, 5.00, 10.00,
20.00, 40.00, 60.00, 80.00 or 100.00)
39- 44 F6.3 [10-7W] log(L-NT) Logarithm of Luminosity at 3000Å of
non-illuminated NT discs
48- 53 F6.3 [10-7W] log(L-NT+fcol) Logarithm of Luminosity at 3000Å of
non-illuminated NT discs with colour
correction
57- 62 F6.3 [10-7W] log(L-NT/X) Logarithm of Luminosity at 3000Å of
illuminated NT discs
66- 71 F6.3 [10-7W] log(L-NT/X+fcol) Logarithm of Luminosity at 3000Å of
illuminated NT discs with colour
correction
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Acknowledgements:
Iossif Papadakis, jhep(at)physics.uoc.gr
(End) Iossif Papadakis [Univ. of Crete], Patricia Vannier [CDS] 07-Sep-2022