论文标题
在IRAS 13349+2438中检测可能的多相超快速流出与Nustar和XMM-Newton
Detection of a possible multiphase ultra-fast outflow in IRAS 13349+2438 with NuSTAR and XMM-Newton
论文作者
论文摘要
我们介绍了明亮的，可变的类星体IRAS 13349+2438的nustar和XMM-Newton观测值。该组合的数据集显示了8和9 KEV处的两条透明的铁吸收线，它们很可能与两层中等相对论的蓝光吸收相关，速度为0.14C和0.27C。我们还发现了有力的证据表明，在堆叠的XMM-NEWTON EPIC-PN频谱中，在中间能量的一系列LY $α$吸收线与下速度铁特征相同的蓝光。这与一个场景相一致，即流出的风被径向分层，因此，观察到更快，更高的电离材料靠近黑洞，并且从较大的Radii处的流线中可以看到较冷的材料。
We present joint NuSTAR and XMM-Newton observations of the bright, variable quasar IRAS 13349+2438. This combined dataset shows two clear iron absorption lines at 8 and 9 keV, which are most likely associated with two layers of mildly relativistic blueshifted absorption, with velocities of 0.14c and 0.27c. We also find strong evidence for a series of Ly$α$ absorption lines at intermediate energies in a stacked XMM-Newton EPIC-pn spectrum, at the same blueshift as the lower velocity iron feature. This is consistent with a scenario where an outflowing wind is radially stratified, so faster, higher ionization material is observed closer to the black hole, and cooler, slower material is seen from streamlines at larger radii.
