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Updated: Jan 21, 2026

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Three-Dimensional Reconstruction of Orbital Fractures
Published on: May 16, 2025
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銀河中心の超大質量ブラックホールを周回する星S0-2の相対性赤道移転
Tuan Do1, Aurelien Hees2,3, Andrea Ghez3
1Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA. tdo@astro.ucla.edu.
まとめ
天文学者はアインシュタインの相対性理論を 銀河中心の星S0-2を観察して検証しました ニュートンの重力を除いて,一般相対性理論の予測が確認されました.
科学分野:
- 天体物理学
- 一般相対性理論
- ブラックホール物理学
背景:
- 一般相対性理論は 超大質量ブラックホールの近くにある恒星の 相対性赤偏移を予測しています
- 銀河中心の星S0-2は 超大質量ブラックホールである Sagittarius A*の周りを回っています
研究 の 目的:
- 恒星S0-2の観測を用いて 一般相対性理論の予測を検証する
- 超大質量ブラックホールの最接近時に S0-2の相対性赤偏移を測定する.
主な方法:
- 1995年から2018年にかけてのS0-2のスペクトロスコープとアストロメトリックの計測を組み合わせた.
- S0-2の16年の軌道を分析し ブラックホールに近づいた
- パラメータYを用いて赤偏移を定量化する.
主要な成果:
- 特殊相対性運動と重力赤偏移の組み合わせを検出しました
- 赤色シフトパラメータY = 0.88 ± 0.17を測定した.
- 結果は一般相対性理論 (Υ = 1) と一致する.
結論:
- 観測結果は,超大質量ブラックホールの近くの恒星軌道に関する 一般相対性理論の予測を裏付けている.
- ニュートンモデル (Υ = 0) は5σの統計的有意性で除外された.
- この研究は,強い重力場における相対論的効果の強力な証拠を提供します.
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