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Discovery of a recombination dominant plasma: a relic of a giant flare of Sgr A*?

  • S. Nakashima (a1), M. Nobukawa (a1), H. Uchida (a1), T. Tanaka (a1), T. G. Tsuru (a1), K. Koyama (a1) (a2), H. Uchiyama (a3) and H. Murakami (a4)...

Abstract

We present the discovery of out-flow like plasma emissions with the Suzaku and ASCA data. Those plasmas have a size of ∼150 pc. Remarkably, the southern plasma is in a recombination dominant phase, which is not predicted by standard shock heating. A plausible scenario is either photoionization due to strong jet-like X-rays from Sgr A* or rapid cooling due to adiabatic expansion of a blowout plasma from the Galactic center about 105 years ago.

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References

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Keywords

Discovery of a recombination dominant plasma: a relic of a giant flare of Sgr A*?

  • S. Nakashima (a1), M. Nobukawa (a1), H. Uchida (a1), T. Tanaka (a1), T. G. Tsuru (a1), K. Koyama (a1) (a2), H. Uchiyama (a3) and H. Murakami (a4)...

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