恒星質量ブラックホールの周りの蓄積円盤の3層の大気構造
1Physics Department, University of Alabama in Huntsville, Huntsville, AL 35899, USA. Space Sciences Laboratory, NASA Marshall Space Flight Center, SD50, Huntsville, AL 35812, USA. Center for Space Research, Massachusetts Institute of Technology, Cambrid.
まとめ
銀河の超光の噴射源のX線スペクトルモデリングは,3層の蓄積円盤大気を明らかにしています. 冷たい円盤,暖かい層,任意の熱い冠からなるこの構造は,蓄積円盤物理学の洞察を提供します.
科学分野:
- 天体物理学 天体物理学
- 高エネルギー天体物理学
- プラズマ物理学のプラズマ物理学
背景:
- GRS 1915+105やGRO J1655-40のような銀河の超光ジェット源は,蓄積過程を理解するために極めて重要です.
- コンパクトな物体の周りの蓄積円盤は,X線を放射する複雑な環境である.
研究 の 目的:
- 特定の銀河の超光のジェット源のX線スペクトルをモデル化するために.
- これらの源の内部の蓄積円盤の大気構造を調査する.
主な方法:
- GRS 1915+105とGRO J1655-40からのX線放射のスペクトル分析
- 蓄積円盤のための多層の大気モデルの開発.
主要な成果:
- 内部蓄積円盤の3層の大気構造の識別.
- 各層の温度と光学深さの特徴:冷たいディスク (0.2-0.5 keV),暖かい層 (1.0-1.5 keV,光学深さ ~ 10),およびオプションのホットコロナ (> 100 keV,光学深さ ~ 1).
結論:
- 蓄積円盤は,複雑で層分かれした大気を表しています.
- これらの蓄積円盤と太陽の大気間の構造的な類似性は,共通の基礎的な物理的メカニズムを示唆しています.
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