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Updated: May 10, 2026

06:14
Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
Published on: July 30, 2020
宇宙学的な距離で発生する急速なラジオバーストの集団
D Thornton1, B Stappers, M Bailes
1Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester, UK. thornton@jb.man.ac.uk
まとめ
天文学者は,遠くの銀河から発する4つの高速ラジオバースト (FRB) を発見しました. これらの宇宙信号は,科学者が宇宙の物質含有量を測定するのに役立ちます.
科学分野:
- 天体物理学 天体物理学
- コスモロジー・コスモロジーとは
- ラジオ天文学 ラジオ天文学
背景:
- 暫定的な天体物理学的源は,物理的過程に対するユニークな洞察を提供します.
- パルサーと高速トランジタを調査することは,新しい天体を発見する鍵です.
研究 の 目的:
- 4ミリ秒間の無線トランジエントの発見を報告する.
- これらのトランジタを特徴づけ,宇宙学的探査機としての潜在能力を探求する.
主な方法:
- パルサーと高速トランジタを調査した.
- 爆破の性質を分析して,天の起源を決定する.
- ホスト銀河と銀河間媒体のモデルを用いて赤道移転と距離を推定する.
主要な成果:
- 銀河平面から40°以上離れた4つのミリ秒間の無線トランジタが検出されました.
- 爆破の性質は,それらの天の起源を確認した.
- 推定される宇宙学的な赤偏移は0.5から1の範囲で,距離は最大3ギガパーセックである.
- 関連するX線またはガンマ線シグネチャは観察されなかった.
結論:
- これらの無線トランジタは,銀河外トランジタ源の新しいクラスを表しています.
- 彼らの宇宙学的距離は,銀河間媒体を探査するのに貴重なものです.
- 源集団と宿主銀河の特徴づけは,宇宙のバリオン含有量を決定するのに役立ちます.
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