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バイナリーパルサーが53分間の軌道に乗る

Z Pan1,2,3,4, J G Lu1,2,3,4, P Jiang5,6,7,8

  • 1National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.

Nature
|June 20, 2023
PubMed
まとめ
この要約は機械生成です。

研究者らは新しいスパイダーパルサーであるPSR J1953+1844 (M71E) を発見し,異常な短い軌道周期と低質量伴星を発見した. この発見は 異なるタイプのパルサーの間のギャップを埋めて 進化を理解するのに役立ちます

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科学分野:

  • * 天文学と天体物理学
  • * コンパクトオブジェクト物理
  • * 二重星系

背景:

  • *スパイダーパルサーは,近隣の伴星とニュートロン星で,ミリ秒の回転周期と短い軌道につながります.
  • * これらのシステムは,パルサーの進化,放射線効果,中性子星の形成を理解するために不可欠です.
  • * ブラック・ウィドウパルサーには,非常に低質量な伴星があり,レッドバックパルサーから進化した可能性がある.

研究 の 目的:

  • * 質量が適度で,軌道周期が非常に短いミリ秒パルサーを探し,特徴づけること.
  • * 異なる種類のパルサーの進化的関係を調査する.
  • * 新しいバイナリミリ秒パルサーシステムの発見を報告します.

主な方法:

  • * バイナリミリ秒パルサーPSR J1953+1844 (M71E) の無線観測
  • * 軌道周期と伴星質量の分析
  • *X線源の検出と位置づけ

主要な成果:

  • * PSR J1953+1844 (M71E) の発見,バイナリミリ秒パルサー.
  • * 軌道周期は53. 3分
  • * 伴星の質量は約0.07Mである.
  • * 球状星団M71の中心近くに位置する.

結論:

  • * 発見されたシステムは,予想されるパルサー集団の空白を埋める.
  • スパイダーパルサーとその仲間たちの進化について 新しい洞察力を与えます
  • * ニュートロン星二重体の多様性を理解するのに貢献する.