活発な銀河Mrk231の遮蔽環核円周の調査
Hans-Rainer Klöckner1, Willem A Baan, Michael A Garrett
1Kapteyn Institute, PO Box 800, 9700 AV Groningen, The Netherlands. hrkloeck@astro.rug.nl
Nature
|February 21, 2003
まとめ
活発な銀河は,ブラックホールの蓄積によって動いています. マーカリアン231のヒドロキシル (OH) マザー放射の観測は,塵をかぶった,回転している遮蔽物質のトーラスを示し,活発な銀河団統一モデルの重要な側面を確認した.
科学分野:
- 天文学と天体物理学について
- 銀河の進化 銀河の進化 銀河の進化
- ブラックホール物理学 ブラックホール物理学
背景:
- 活発な銀河は強い核放出を示し,中央のブラックホールへの増殖によって説明されます.
- "統一された"モデルは,遮蔽物質が観測された活性銀河核 (AGN) 型における変動を引き起こすことを示唆している.
- この遮蔽物質の構造と範囲は,未だに十分に理解されていない.
研究 の 目的:
- 活発な銀河の遮蔽物質の構造と動力学を調査する.
- 統一モデルによって予測された環核物質の存在と性質を確認する.
- この遮蔽材料のトレーサーとして,ヒドロキシル (OH) ラインの排出を活用する.
主な方法:
- 強力なヒドロキシル (OH) ラインの排出量の観測.
- マザー放射特性の分析. マザー放射特性の分析.
- 銀河Markarian 231の環核環境のマッピング
主要な成果:
- ハイドロキシル (OH) マザー放射の検出.
- 回転し,塵をかぶった分子トーラスの識別.
- トラスの位置は,中央エンジンから30~100パーセクです.
結論:
- 観測されたヒドロキシル (OH) マザー放出は,トルス状構造の存在を確認しています.
- この構造は,活発な銀河統一モデルで提案されている遮蔽物質と一致しています.
- 円周核物質の物理的条件,運動学,空間構造についての詳細な洞察を提供します.
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