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Line-of-sight spatial extent of warm-hot medium in the direction of PKS 2155-304

机译:PKS 2155-304方向上热热介质的视线空间范围

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We studied the hot gas in the Galactic halo in the direction of a blazer PKS 2155-304 (z =0.117). This is the second direction for combined analysis using high resolution X-ray absorption/emission data. Absorption features of OⅦ and OⅧ are measured with Chandra LETGS. Suzaku observations of the vicinity of PKS 2155-304 allows us to study emission lines (OⅦ , OⅧ , NⅦ and NeⅨ ). We performed a joint analysis of emission and absorption data assuming a vertically exponential galactic disk. The gas temperature and density at the Galactic plane are determined to be 3.2(+0.7, -0.6) × 10~6 K and 1.3(+0.4, —0.6) × 10~(-3) cm~(-3) and the scale heights of the gas temperature and density 2.2(+4.4, —2.1) kpc and 5.1(+3.9, —4.7) kpc, respectively.
机译:我们在燃烧器PKS 2155-304(z = 0.117)的方向上研究了银河光环中的热气体。这是使用高分辨率X射线吸收/发射数据进行组合分析的第二个方向。用钱德拉·莱特斯(Chandra LETGS)测量OⅦ和OⅧ的吸收特征。朱雀对PKS 2155-304附近的观测使我们能够研究发射线(OⅦ,OⅧ,NⅦ和NeⅨ)。我们假设垂直指数银河盘对发射和吸收数据进行了联合分析。银河平面的气体温度和密度确定为3.2(+0.7,-0.6)×10〜6 K和1.3(+0.4,-0.6)×10〜(-3)cm〜(-3),并且气体温度的刻度高度和密度分别为2.2(+4.4,-2.1)kpc和5.1(+3.9,-4.7)kpc。

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