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

Resolving the inner accretion flow towards the central supermassive black hole in SDSS J1339+1310
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解决 SDSS J1339 1310 中朝向中心超大质量黑洞的内部吸积流

DOI:
10.1051/0004-6361/202038770
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发表时间:
2021
影响因子:
6.5
通讯作者:
Sergeyev, A. V.
Sergeyev, A. V.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Shalyapin, V. N.;Goicoechea, L. J.;Morgan, C. W.;Cornachione, M. A.;Sergeyev, A. V.

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我们利用发现类星体SDSS J1339+1310的前11个观测季节的R波段光曲线和UV-可见光到近红外光谱,研究了它的吸积盘结构。2009年−2019年的光曲线在不同的时间尺度上显示了显著的微透镜变化,这种微透镜信号允许我们限制1930ä连续发光区域的半光半径。假定吸积盘的轴线与视线成60°倾角,我们得到了。我们还从光谱数据中估算了中心黑洞的质量。C IV、mg II和Hβ发射线的宽度以及1350、3000和5100?的连续谱光度导致LOG(MBH/M⊙) = 8.6 ± 0.4.因此,负责1930ä连续谱发射的热气体很可能绕着一个4.0 × 108m的⊙黑洞运行,其半径只有几十个施瓦茨希尔半径的1/2。
We studied the accretion disc structure in the doubly imaged lensed quasar SDSS J1339+1310 usingr-band light curves and UV-visible to near-IR 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 Å continuum-emitting region. Assuming an accretion disc with an axis inclined at 60° to the line of sight, we obtained . We also estimated the central black hole mass from spectroscopic data. The width of the C IV, Mg II, and Hβemission lines, and the continuum luminosity at 1350, 3000, and 5100 Å, led to log(MBH/M⊙) = 8.6 ± 0.4. Thus, hot gas responsible for the 1930 Å continuum emission is likely orbiting a 4.0 × 108M⊙black hole at anr1/2of only a few tens of Schwarzschild radii.
DOI: 10.3847/1538-4357/ab557a
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期刊: The Astrophysical Journal
影响因子: --
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发表时间: 1998
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