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X-ray And Optical Microlensing In The Lensed Quasar Pg 1115+080

机译：透镜类星体Pg 1115 + 080中的X射线和光学微透镜

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摘要

We analyzed the microlensing of the X-ray and optical emission of the lensed quasar PG 1115+080. We find that the effective radius of the X-ray emission is 1.3_(-0.5)~(+1.1) dex smaller than that of the optical emission. Viewed as a thin disk observed at inclination angle i, the optical accretion disk has a scale length, defined by the point where the disk temperature matches the rest-frame energy of the monitoring band (kT = hc/λ_(rest) with λ_(rest) = 0.3 μm), of log {(r_(s,opt/cm)[ cos (i)/0.5] } = 16.6 ± 0.4. The X-ray emission region (1.4-21.8 keV in the rest frame) has an effective half-light radius of log (r_(1/2.x)/cm) = 15.6_(-0.9)~(+0.6). Given an estimated black hole mass of 1.2 × 10~9 M_☉, corresponding to a gravitational radius of log(r_g/cm) = 14.3, the X-ray emission is generated near the inner edge of the disk, while the optical emission comes from scales slightly larger than those expected for an Eddington-limited thin disk. We find a weak trend supporting models with low stellar mass fractions near the lensed images, in mild contradiction to inferences from the stellar velocity dispersion and the time delays.
机译：我们分析了透镜类星体PG 1115 + 080的X射线微透镜和光发射。我们发现，X射线发射的有效半径比光发射的有效半径小1.3 _（-0.5）〜（+1.1）dex。光学吸积盘以倾斜角度i观察到的薄盘观看，其刻度长度由盘温度与监视频带的静止帧能量与监视带的静止帧能量（kT = hc /λ_（rest）与λ_（静止）= 0.3μm），对数{（r_（s，opt / cm）[cos（i）/0.5]} = 16.6±0.4。X射线发射区域（静止帧为1.4-21.8 keV）具有log的有效半光半径（r_（1 / 2.x）/ cm）= 15.6 _（-0.9）〜（+0.6）。假定黑洞质量估计为1.2×10〜9M_☉，对应于当引力半径为log（r_g / cm）= 14.3时，X射线发射是在磁盘内边缘附近产生的，而光发射的标度比对Eddington限定的薄盘所期望的标度稍大。弱趋势支持在镜头图像附近具有低恒星质量分数的模型，与恒星速度散布和时间延迟的推论有轻微矛盾。

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