背景の星光の相対的偏差は,近くの白矮星の質量を測定する
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PubMedで要約を見る
まとめ
この要約は機械生成です。天文学者はハッブル宇宙望遠鏡を使って 白い矮星の微小レンズ観測を行った. これはアインシュタインが
科学分野
- 天文学と天体物理学
- 恒星物理学
背景
- アインシュタインの相対性理論は1919年の日食で 重力レンズで確認されました
- 白い矮星は恒星の進化と 変性物質の物理学の理解に不可欠な恒星の残骸です
研究 の 目的
- 近くの白矮星スタイン2051Bの質量を測定する
- 変性物質の物理と 白い矮星の進化論を 確認するために
主な方法
- ハッブル宇宙望遠鏡を使って 微小レンズ観測を行いました
- 背景の星の位置偏移を測定しました スタイン2051Bが星の前を通ったときです
- 傾きを正確に決定するために,複数の時代で測定を集めました.
主要な成果
- ステイン2051Bによる 微小レンズ効果の測定に成功しました
- スタイン2051Bの質量は0.675 ±0.051太陽質量であると決定した.
- ステイン2051Bは太陽に6番目に近い白矮星であると確認しました
結論
- 質量決定は 変性物質の物理を支える
- この発見は 確立された白 dwarf 進化論を支持します
- 恒星物体の質量決定の有効な方法として天文微レンズを実証した.
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