A joint Chandra and XMM-Newton view of Abell 3158: a massive off-centre cool gas clump as a robust diagnostic of a merger stage

@article{Wang2009AJC,
  title={A joint Chandra and XMM-Newton view of Abell 3158: a massive off-centre cool gas clump as a robust diagnostic of a merger stage},
  author={Yu Wang and Haiguang Xu and Liyi Gu and Junhua Gu and Zhenzhen Qin and Jingying Wang and Zhongli Zhang and Xiang-Ping Wu},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2009},
  volume={403},
  pages={1909-1918}
}
In previous works, the nearby galaxy cluster Abell 3158 was reported to possess a relatively regular, relaxed morphology in the X-ray band. By analysing the Chandra and XMM-Newton archived data of Abell 3158, we have identified a bow-edge-shaped discontinuity in the X-ray surface brightness distribution about 120 h -1 71 kpc west of the X-ray peak. This feature is found to be associated with a massive, off-centre cool gas clump, and actually forms the west boundary of the cool clump. By… Expand

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