钱德拉（Chandra）观测的射电星系M87的 knot A 的热辐射
The thermal emission for knot A of radio galaxy M87 by Chandra
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中文总结 AI 辅助
本研究利用钱德拉（Chandra）X射线观测数据，通过选取合适背景排除软X射线凹陷干扰，确认射电星系M87的knot A存在高置信度的热辐射，验证了喷流激波加热产生热辐射的理论预期。
中文摘要 AI 辅助
喷流可能压缩星际介质，且喷流外的软X射线会被压缩后的星际介质吸收，预计喷流内部存在由激波加热产生的热辐射。钱德拉（Chandra）的X射线能谱分析已在M87的HST-1和knot A中发现热辐射（Osone，2017）；钱德拉（Chandra）还研究了M87喷流周边的X射线图像（Osone，2024）。本文发现knot A外的南部区域存在软X射线凹陷，因此选取knot A外无软X射线凹陷的北部区域作为背景，通过钱德拉（Chandra）分析knot A的X射线能谱，以高置信度确认了其热辐射的存在。
英文摘要
The jet may compress an interstellar medium and soft X ray outside the jet may be absorbed by a compressed interstellar medium and thermal emission heated by a shock is expected inside the jet. Thermal emission was found for HST-1 and knot A of M87 in X ray energy spectra analysis by Chandra (Osone, 2017). The X ray image of the surrounding of the jet of M87 was studied by Chandra (Osone 2024). I find a soft X ray dip in a south region outside knot A. Therefore, by taking only a north region outside knot A as a background, where there is no soft X ray dip, I analyze X ray energy spectra for knot A by Chandra and confirm thermal emission with a high significance.
发表机构
- Chiba, Japan（千叶）
机构由 AI 辅助整理，请以论文原文为准。
