ラジオソースはオハイオ州の調査からカウントされます
1Ohio State University, Radio Observatory, Columbus, USA.
Nature
|August 22, 1970
まとめ
オハイオの調査は,均一な宇宙で予想されるよりも,より少ない微弱な宇宙の源を明らかにしています. この発見は,以前の研究と一致しているが,より高い周波数でより顕著な減少を示している.
科学分野:
- ラジオ天文学 ラジオ天文学
- コスモロジー・コスモロジーとは
背景:
- 宇宙源の分布を理解することは,宇宙の進化を理解するための鍵です.
- ケンブリッジ5C2のような以前の調査では,さまざまな無線周波数でのソースカウントを調査しました.
研究 の 目的:
- オハイオ州の調査から得られた無線源数を分析するために.
- オハイオの調査結果を,均一でユークリッド的な宇宙に対する期待と,他の調査結果を比較する.
主な方法:
- オハイオ望遠鏡を使ってラジオ天文調査を行いました.
- 1415MHzで検出された無線源を数える.
- 観測された源数と理論モデルを比較する.
主要な成果:
- オハイオの調査は,均一でユークリッド的な宇宙の予測と比較して,弱々しい無線源の不足を検出しました.
- この赤字は,408MHzでのケンブリッジ5C2調査の結果と一致しています.
- ソース数値の減少は,ケンブリッジの408MHzの調査よりも1415MHzのオハイオの調査データにおいてより顕著である.
結論:
- 観測された微弱な無線源の減少は,宇宙における単純な均一分布からの偏差を示唆している.
- より高い周波数 (1415 MHz) の観測は,源数の急激な減少を明らかにし,進化的効果や選択バイアスを潜在的に示している.
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