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Updated: Jul 6, 2026

10:35
Bringing the Visible Universe into Focus with Robo-AO
Published on: February 12, 2013
レーザーガイド・スター・アダプティブ・オプティクスのイメージング・ポラリメトリーは,Herbig Ae/Beの恒星をイメージするポラリメトリーです
Marshall D Perrin1, James R Graham, Paul Kalas
1Astronomy Department, University of California Berkeley, Berkeley, CA 94720, USA. mperrin@astro.berkeley.edu
まとめ
私たちは,高度な光学を用いて若い恒星を研究し,極化星雲とジェットを明らかにしました. これは,T Tauri と Herbig Ae/Be の星が共通の進化の経路を共有していることを示唆しています.
科学分野:
- 天文学と天体物理学について
- 恒星の進化について
- 周回星環境 周回星環境
背景:
- Herbig Ae/Be星は,恒星の進化を理解するために極めて重要な中等質量の若い星です.
- 星周円盤と封筒は,恒星形成と惑星系の発達において重要な役割を果たします.
研究 の 目的:
- 先進的な観測技術を用いて,Herbig Ae/Beの恒星の周回環境を調査する.
- 質量の中間のハービグ・エー/ビー星と質量低いT・タウリ星の進化段階を比較する.
主な方法:
- 高解像度画像撮影のためのレーザーガイドスター適応光学を使用しました.
- 散乱光を分析するために,近赤外線双チャンネル画像ポリメーターを使用しました.
主要な成果:
- LkHalpha 198.の周囲に強く偏った二角形の星雲が観測されました.
- 埋め込まれたソース LkHalpha 198-IR.と関連付けられた偏光ジェットのような特徴を検出しました.
- LkHalpha 233の狭い,偏りのない暗いレーンを特定し,周周星円盤の兆候を示しました.
結論:
- Herbig Ae/Be星の観測された特徴は,質量が低いT Tauri星で見られるプロセスと一致しています.
- これらの発見は,T Tauri と Herbig Ae/Be の2つの恒星の共通の進化配列を裏付けている.
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