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一般相対性理論によって明らかになったパルサーの磁極からのラジオ放射
Gregory Desvignes1,2, Michael Kramer3,4, Kejia Lee5
1Max-Planck-Institut für Radioastronomie, Auf dem Hügel, 69 D-53121 Bonn, Germany. gdesvignes@mpifr-bonn.mpg.de.
Science (New York, N.Y.)
|September 7, 2019
まとめ
バイナリーパルサーの極限観測は,一般相対性理論 (GR) の予測を裏付けている. パルサーPSR J1906+0746について
科学分野:
- 天文学と天体物理学
- 一般相対性理論
- パルサー物理学
背景:
- バイナリーパルサーは一般相対性理論 (GR) の影響を受け,スピン軸のプレセーションにつながります.
- パルサー放射のメカニズムと相対論的効果を理解することは 基本的な物理学のテストに不可欠です
研究 の 目的:
- ポラリメトリック無線観測を用いてパルサーの幾何学モデルを検証する.
- PSR J1906+0746の極化放射マップを再構築し,その放射消失を予測する.
- バイナリーパルサーのスピン・プレセーションを用いて一般相対性理論のテストを行う.
主な方法:
- バイナリーパルサーPSR J1906+0746.の極測無線観測を用いた.
- パルサーの磁極に映し出された極化放射の地図を再構成する.
- パルサーの極化モデルに相対論的処理を適用し,パルサーの放射分子を測定する.
主要な成果:
- パルサーの極化という幾何学的モデルの有効性を証明した.
- 2028年までに検出可能なPSR J1906+0746の排出が消滅すると予測されています.
- 束縛された相対性パルサーの極化モデルとパルサーの放射分子を測定した.
結論:
- この研究は,バイナリパルサーとパルサーの極化モデルのGR予測を検証している.
- この発見は中性子星の集団と 合併率の理解に 影響を及ぼします
- 観測されたスピン・プレセシオンは,強い重力場における一般相対性理論のための新しいテストベッドを提供します.
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