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首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >Suzaku Observation of HCG 62:Temperature, Abundance, and Extended Hard X-Ray Emission Profiles
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Suzaku Observation of HCG 62:Temperature, Abundance, and Extended Hard X-Ray Emission Profiles

机译：朱古力HCG 62观测：温度，丰度和扩展的硬X射线发射曲线

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The compact group of galaxies HCG 62 (z = 0.0145) was observed for 120 ks with Suzaku XIS and HXD-PIN.The XIS spectra for four annular regions were fitted with a two-temperature vapec model with variable abundance,combined with the foreground Galactic component. The Galactic component was described by a two-temperatureapec model, and constrained to have a common surface brightness among the four annuli. We confirmed the multi-temperature nature of the intra-group medium, as reported previously, with a doughnut-like high temperature ring atradii 3:3-6.'5. Abundances of Mg, Si, S, and Fe were well-constrained. We examined the possible "high-abundancearc" at ~. 2' southwest from the center; however, Suzaku data did not confirm it. We suspect that it is a misidentifi-cation of an excess hot component in this region as the Fe line. Neither XIS (5-12 keV) nor HXD-PIN (12-40 keV)gave positive detection of the extended hard X-rays previously reported with ASCA, although our upper limit didnot exclude the ASCA result. The 5-12 keV intensity in the r < 3.'3 region turned out to be 70 ± 19% higher thanthe nominal CXB level, and Chandra and Suzaku data suggest a concentration of hard X-ray sources with an averagephoton index of F = 1.38 ± 0.06. The cumulative mass of 0, Fe, and Mg in the intra-group medium and the metalmass-to-light ratio were compared with those in other groups. The possible role of AGN or galaxy mergers in thisgroup is also discussed.
机译：使用Suzaku XIS和HXD-PIN在120 ks处观测到了紧凑的星系HCG 62（z = 0.0145）。四个环形区域的XIS光谱与可变温度的两温vapec模型拟合，并与前景银河相结合零件。银河系分量由两温区模型描述，并被约束为在四个环面之间具有共同的表面亮度。如先前报道，我们证实了组内培养基的多温性，其甜甜圈状高温环的半径为3：3-6.'5。 Mg，Si，S和Fe的含量受到严格限制。我们在〜处检查了可能的“高丰度”。中心西南2';但是，朱雀的数据并未证实这一点。我们怀疑这是该区域中多余的热成分误认为是Fe线。尽管我们的上限并未排除ASCA的结果，但XIS（5-12 keV）或HXD-PIN（12-40 keV）均未对先前用ASCA报告的扩展硬X射线给出阳性检测结果。 r <3.'3区域的5-12 keV强度比标称CXB水平高70±19％，而Chandra和Suzaku数据表明，硬X射线源的浓度平均为F = 1.38±0.06。将组内培养基中的0，Fe和Mg的累积质量以及金属质与光的比率与其他组进行比较。还讨论了AGN或星系合并在该组中的可能作用。

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