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超光る超柔らかいX線源からの相対的バリオンジェット
Ji-Feng Liu1,2, Yu Bai1, Song Wang1
1Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China.
Nature
|November 26, 2015
まとめ
天体物理学者は,超光る超柔らかいX線源 (ULS) から相対論的ジェットを観測し,現在のジェット形成理論に挑戦しました. この予期せぬ発見は 超集積ブラックホールが これらの強力な流出に 責任があることを示唆しています
科学分野:
- 天体物理学
- X線天文学
- コンパクトオブジェクト研究
背景:
- コンパクトな物体からの相対論的ジェットは 重要な天体物理学上の謎です
- マイクロクワザールは 確立された相対論的ジェット現象を示している.
- 超柔らかいX線源は通常相対論ジェットを生成しませんが,一部では低速の流出を示します.
研究 の 目的:
- 超光学超柔らかいX線源 (ULS) の相対論ジェットの性質を調査する.
- ULS M81 ULS-1の光学スペクトルを分析する.
- 相対論的ジェット形成の既存の理論に挑戦し,精錬する.
主な方法:
- M81 ULS-1の光学スペクトル
- 時間の変数,ブルーシフトHα排出ラインの分析.
- SS433のような既知のマイクロクワザールとの比較.
主要な成果:
- M81 ULS-1からのバリオンジェットで観測された相対性速度 (17%の光の速度).
- 時間の変数,広範囲のHα放射線を検出しました.
- マイクロクワザール SS 433 と類似した特徴を発見した.
結論:
- ULSにおける相対論的ジェットの存在は,正規のジェット形成理論に異議を唱える.
- この発見は,ULSと光学的に厚い流出を持つ超収縮ブラックホールの間の潜在的な関連を示唆しています.
- この発見は ジェット機の打ち上げメカニズムを理解するための 新たな道を開きます
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