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広場調査から得られた高速電波の分散-明るさの関係
R M Shannon1,2,3,4, J-P Macquart5,6, K W Bannister7
1Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, Victoria, Australia. rshannon@swin.edu.au.
Nature
|October 12, 2018
まとめ
超高速電波 (FRB) は神秘的な宇宙信号です 新しい広場調査で20個のFRBが検出され, その明るさと分散の間の関連が明らかになり, 近くのFRBは遠くのFRBに似ていることを示唆しています.
科学分野:
- 天文学と天体物理学
- コスミック・ラジオ・トランシーント
背景:
- FRBは 銀河系外で発する 強い電波です
- 以前のFRBの調査は異質で 人口調査を複雑にしていました
- 不確実な位置と明るさは理解をさらに妨げました.
研究 の 目的:
- 制御された 広域の無線調査を 急速な無線爆発のために
- 検出されたFRBの集団とその性質を特徴づける.
- 散乱と明るさのようなFRBの特性との関係を調査する.
主な方法:
- FRBを検出するために広場無線調査が行われました.
- フォローアップの観察は,繰り返しの爆発をチェックするために行われました.
- 分析は爆発分散,明るさ,および潜在的な相関に焦点を当てました.
主要な成果:
- 調査で20のFRBが検出されました.
- 追跡調査中に再発したFRBは見つかりませんでした.
- 爆破分散と明るさの間の関係が特定されました.
- より遠いFRBと類似していることが判明した.
結論:
- この調査により,より均質なFRBのサンプルが得られる.
- FRBの性質は 異なる距離で連続していることが 示唆されています
- この研究はFRBの集団とその起源の理解を進めるものです
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