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Updated: Jul 29, 2026

10:35
Bringing the Visible Universe into Focus with Robo-AO
Published on: February 12, 2013
まとめ
赤道偏移1.405で0957 + 561 AとBの2つのクエーサー (QSOs) は,スペクトル的な類似性を示し,関連性を示唆しています. その近距離とスペクトルデータは,それらは別々の物体なのか,それとも重力レンズで照らされた単一のクワザールなのか,という疑問を提起する.
科学分野:
- 天文学と天体物理学について
- コスモロジー・コスモロジーとは
- 重力レンズ化は,重力レンズによるものです.
背景:
- クエサール (QSO) は,高度に輝く活発な銀河核である.
- 重力レンズは,遠隔の源からの光を,その源と観測者の間の物体の重力によって曲げる.
- クワザールペア0957 + 561 AとBは,5.7弧秒の距離で観測されています.
研究 の 目的:
- クワザールペア0957 + 561 AとBの性質を調査する.
- 2つのオブジェクトが異なるクエサールか,または単一のオブジェクトの重力画像かどうかを決定する.
- アソシエーションの証拠のためにスペクトルデータを分析する.
主な方法:
- クワザール0957 + 561 AとBのスペクトル解析
- 照明測定法により,表面の大きさを測定する.
- 空間分離と赤色偏移の分析.
主要な成果:
- 0957 + 561 A と B のスペクトルは,それらは関連していることを示しています.
- 両方のオブジェクトの赤偏移は1.405であった.
- 近い角距離 (5.7 弧秒) とスペクトルの類似性は,それらを2つの別々の物体として分類する上で課題を提示します.
結論:
- スペクトルの証拠は,0957 + 561 A と B が関連していることを強く示唆しています.
- 0957 + 561 A と B が重力レンズによって形成された同じクワザーの2つの画像である可能性は,重要な考慮事項です.
- 2つの異なるクワザールと重力レンズ系を明確に区別するためにさらなる調査が必要である.
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