Further evidence for the accretion disc origination of the double-peaked broad Hα of 3C 390.3
Further evidence for the accretion disc origination of the double-peaked broad Hα of 3C 390.3
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DOI：
10.1093/mnrasl/slt019
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发表时间：
2013-02
影响因子：
4.8
通讯作者：
XueGuang Zhang
中科院分区：
文献类型：
--
作者：
XueGuang Zhang
在这封信中，在广泛接受的理论吸积盘模型的双峰发射体3C 390.3，扩展盘状宽线区域可以很好地分裂成10个环，然后从环的线和连续辐射之间的时间滞后估计，基于1995年左右的观测光谱。我们可以找到一个很强的相关性之间的测定时间滞后（单位为光日）和通量加权半径（单位为R-G）的环，这是符合预期的结果，通过理论吸积盘模型。此外，通过强相关性，3C 390.3的黑洞质量被独立估计为类似于10（9）M（圆点），与文献中报道的黑洞质量相同。这一结果进一步有力地支持了3C 390.3双峰宽巴耳末谱线的吸积盘起源。
In this Letter, under the widely accepted theoretical accretion disc model for the double-peaked emitter 3C 390.3, the extended disc-like broad-line region can be well split into 10 rings, and then the time lags between the lines from the rings and the continuum emission are estimated, based on the observed spectra around 1995. We can find one very strong correlation between the determined time lags (in units of light-day) and the flux-weighted radii (in units of R-G) of the rings, which is well consistent with the expected results through the theoretical accretion disc model. Moreover, through the strong correlation, the black hole masses of 3C 390.3 are independently estimated as similar to 10(9)M(circle dot), the same as the reported black hole masses in the literature. The consistencies provide further evidence to strongly support the accretion disc origination of the double-peaked broad Balmer lines of 3C 390.3.