Resolving the inner accretion flow towards the central supermassive black hole in SDSS J1339+1310

Autor: Christopher W. Morgan, Vyacheslav N. Shalyapin, Matthew A. Cornachione, Alexey V. Sergeyev, Luis J. Goicoechea
Přispěvatelé: Universidad de Cantabria
Rok vydání: 2021
Předmět:
010504 meteorology & atmospheric sciences
Gravitational lensing: strong
Astrophysics::High Energy Astrophysical Phenomena
FOS: Physical sciences
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
Gravitational microlensing
strong [Gravitational lensing]
01 natural sciences
Gravitational lensing: micro
Luminosity
micro [Gravitational lensing]
0103 physical sciences
Astrophysics::Solar and Stellar Astrophysics
supermassive black hole [Quasars]
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
0105 earth and related environmental sciences
Physics
Supermassive black hole
Accretion (meteorology)
Quasars: supermassive black hole
Astronomy and Astrophysics
Quasar
Quasars: individual: SDSS J1339+1310
Accretion
accretion disks
Light curve
Astrophysics - Astrophysics of Galaxies
Black hole
Space and Planetary Science
Astrophysics of Galaxies (astro-ph.GA)
Astrophysics::Earth and Planetary Astrophysics
individual: SDSS J1339+1310 [Quasars]
Schwarzschild radius
Zdroj: Astronomy & Astrophysics. Vol. 646, February 2021. A165
UCrea Repositorio Abierto de la Universidad de Cantabria
Universidad de Cantabria (UC)
Popis: We studied the accretion disc structure in the doubly imaged lensed quasar SDSS J1339+1310 using $r$-band light curves and UV-visible to near-IR (NIR) spectra from the first 11 observational seasons after its discovery. The 2009$-$2019 light curves displayed pronounced microlensing variations on different timescales, and this microlensing signal permitted us to constrain the half-light radius of the 1930 \r{A} continuum-emitting region. Assuming an accretion disc with an axis inclined at 60 deg to the line of sight, we obtained log$_{10}$($r_{1/2}$/cm) = 15.4$^{+0.3}_{-0.4}$. We also estimated the central black hole mass from spectroscopic data. The width of the Civ, Mgii, and H$\beta$ emission lines, and the continuum luminosity at 1350, 3000, and 5100 \r{A}, led to log$_{10}$($M_{BH}$/M$_{\odot}$) = 8.6 $\pm$ 0.4. Thus, hot gas responsible for the 1930 \r{A} continuum emission is likely orbiting a 4.0 $\times$ 10$^8$ M$_{\odot}$ black hole at an $r_{1/2}$ of only a few tens of Schwarzschild radii.
Comment: Accepted to A&A; 11 pages, 3 long tables (Tables 1 and 3-4) are available at the CDS
Databáze: OpenAIRE
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