重量ブラックホールのバイナリ候補における周期性の原因としての相対論的推進
Daniel J D'Orazio1, Zoltán Haiman1, David Schiminovich1
1Department of Astronomy, Columbia University, 550 West 120th Street, New York, New York 10027, USA.
Nature
|September 19, 2015
まとめ
天文学者はクエーサーPG 1302-102で 二重ブラックホールの証拠を発見しました 相対的ドップラー増幅は 光の曲線を説明し 密集し,不均等な質量のシステムを示唆します
科学分野:
- 天体物理学
- 銀河天文学
- ブラックホール物理学
背景:
- 超大質量ブラックホールは 大半の銀河の中心にある
- 銀河の融合は ブラックホールのバイナリが 銀河の核に共通していることを示唆しています
- 準星光の曲線は周期性を示し 二進星系の存在を暗示しています
研究 の 目的:
- クワザールPG 1302-102の光の曲線で観測された周期性の性質を調査する.
- 観測された変動が 二重ブラックホールシステムと一致するかどうかを判断する
- このようなシステムの相対的軌道速度と光曲線の振る舞いに関する予測をテストする.
主な方法:
- クワザール PG 1302-102の光の曲線の変動性の分析.
- コンパクトで増量するバイナリから相対的なドップラーブーストを使用して光の曲線をモデル化します.
- 超紫外線と光学データとのモデル予測の比較
主要な成果:
- PG 1302-102の光の曲線の観測された振幅とシヌソイド形は,相対性ドップラー増幅によってよくフィットされています.
- この変動性は,コンパクトで,着実に増加する,不平等な質量の二重ブラックホールシステムと一致しています.
- 紫外線の明るさの変動は光学的な変化を追跡しますが,幅は2〜3倍になります.
結論:
- この発見はクエーサーPG 1302-102に 二重ブラックホールの存在を強く支持している.
- ブラックホールの軌道に関する以前の仮定に挑戦する 相対論的軌道速度が含まれています
- 将来の紫外線と光学観測により この予測が確認され 二重ブラックホールのモデルが 検証されます
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