ブラックホールの集合体と 隠された融合
Michael J Koss1,2, Laura Blecha3, Phillip Bernhard4
1Eureka Scientific Inc, Oakland, CA, USA. mike.koss@eurekasci.com.
Nature
|November 9, 2018
まとめ
超大質量ブラックホールの成長に 燃料を与えます 特に後期段階では この研究は,暗闇の光るブラックホールにおける 後期核融合の有意な過剰を確認し, 融合主導の蓄積理論を支持している.
科学分野:
- 天体物理学
- 銀河の進化
- ブラックホールの収縮
背景:
- 超大質量ブラックホールの成長を助長する 仮説があります
- この関連に関する観察的証拠は混在しており,ある研究では相関が認められ,ある研究では認められていない.
- ガスと塵による遮蔽は,合併中に増加し,最終段階でピークに達すると予想されます.
研究 の 目的:
- 超大質量ブラックホールの成長における 銀河の合併の最終段階の役割を調査するためです
- 合併によるブラックホール増殖の理論的予測に 観測的サポートを提供するためです
主な方法:
- ブラックホールの高解像度赤外線画像
- 宿主銀河の合併段階の分析
- 恒星質量と恒星形成率に一致した非活動的な銀河との比較
- 水力学的なシミュレーションで 合併プロセスをモデル化します
主要な成果:
- 不活性な銀河 (1.1%) と比較して,暗く輝くブラックホールで,核融合の遅い段階の有意な過剰 (17.6%) が発見された.
- ブラックホールの蓄積は 合併の最終段階でピークに達すると 理論的に予測されています
- 水力学的シミュレーションにより,ガス豊富なメジャー・マージングホストは,この段階で最も強い核融合を呈していることが確認されました.
結論:
- 後期核融合は 隠された超大質量ブラックホールと強く関連しています
- この発見は 銀河の合併が 活発なブラックホールの成長に 重要な役割を果たすという仮説を裏付けています
- 暗く輝くブラックホールは 超大質量ブラックホールの母集団を表しています
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