论文标题
PKS 1510-089的宽线区域和黑洞质量来自光谱混响映射
Broad line region and black hole mass of PKS 1510-089 from spectroscopic reverberation mapping
论文作者
论文摘要
从2008年12月至2017年6月在管家观测值的9个观测季节中，在9个观测季节进行的8.5年长的光谱监测表现出了扁平频谱无线电类星体PKS 1510-089的混响结果。光谱显示出强大的H $β$，H $γ$和Fe II排放线在蓝色连续体上覆盖。所有连续和排放线光曲线均显示出显着的可变性，分数的根平方差异为$ 37.30 \ pm0.06 $％（$ f_ {5100} $），$ 11.88 \ pm0.29 $％（H $β$）和$ 9.61 \ pm0.71 $ $ $ $γ（H $β$），以及$ 9.61 JET的非热排放也有助于$ f_ {5100} $。时间序列分析的几种方法（ICCF，DCF，Von Neumann，Bartels，标枪，$χ^2 $）用于测量连续体和线光曲线之间的滞后。发现观察到的帧BLR尺寸为$ 61.1^{+4.0} _ { - 3.2} $（$ 64.7^{+27.1} _ { - 10.6} $）h $β$（H $γ$）的光日。使用$σ_ {\ Mathrm {line}} $ $ 1262 \ pm247 $ km s $ s $^{ - 1} $从RMS Spectrum测量，PKS 1510-089的黑洞质量估计为$ 5.71^{+0.62} _ {+0.62} _ {+0.62} _ { - 0.58} { - { - 0.58}} {7} {7} m _ {\ odot} $。
Reverberation results of a flat spectrum radio quasar PKS 1510-089 are presented from 8.5-years long spectroscopic monitoring carried out in 9 observing seasons between December 2008 to June 2017 at Steward Observatory. Optical spectra show strong H$β$, H$γ$, and Fe II emission lines overlaying on a blue continuum. All the continuum and emission line light curves show significant variability with a fractional root-mean-square variation of $37.30\pm0.06$% ($f_{5100}$), $11.88\pm0.29$% (H$β$) and $9.61\pm0.71$% (H$γ$), however, along with thermal radiation from accretion disk non-thermal emission from jet also contribute to $f_{5100}$. Several methods of time series analysis (ICCF, DCF, von Neumann, Bartels, JAVELIN, $χ^2$) are used to measure lag between continuum and line light curves. The observed frame BLR size is found to be $61.1^{+4.0}_{-3.2}$ ($64.7^{+27.1}_{-10.6}$) light-days for H$β$ (H$γ$). Using $σ_{\mathrm{line}}$ of $1262\pm247$ km s$^{-1}$ measured from the rms spectrum, the black hole mass of PKS 1510-089 is estimated to be $5.71^{+0.62}_{-0.58} \times 10^{7} M_{\odot}$.
