The Wow! signal A strong narrowband radio signal recorded by the Big Ear telescope on 15 August 1977. It lasted the full 72 second window the telescope had on any point, and it never recurred.
1 出典 9 関係 Big Ear radio telescope Nickname of the now defunct Ohio State University Radio Observatory. It could watch any given point in the sky for just 72 seconds.
1 出典 1 関係 Jerry R. Ehman An astronomer. Reviewing the data a few days later, he circled the reading on the printout and wrote Wow! beside it. In 1998 he gave the frequency as 1420.4556 MHz.
1 出典 2 関係 6EQUJ5 The signal's intensity over time as printed. It is a measurement, not a message; the strongest reading, U, sits about thirty standard deviations above the background noise.
1 出典 2 関係 The hydrogen line The 1420.4058 MHz radio emission of neutral hydrogen. The Wow! signal's frequency sat close to it.
1 出典 1 関係 Toward Sagittarius The signal came from roughly 2.5 degrees south of the fifth magnitude star group Chi Sagittarii.
1 出典 1 関係 John Kraus Director of the observatory. In a 1994 summary written for Carl Sagan he gave the frequency as 1420.3556 MHz.
1 出典 1 関係 The searches Ehman searched again and again with Big Ear, and Robert Gray tried the far more sensitive Very Large Array in 1995 and 1996. The signal was never detected again.
1 出典 1 関係 The comet hypothesis In 2017 Antonio Paris proposed two comets as the source. Astronomers, including members of the original Big Ear team, dismissed it.
1 出典 1 関係 The hydrogen cloud hypothesis In August 2024 Méndez and colleagues posted a preprint, based on Arecibo data, proposing that stellar emission briefly energised a cold hydrogen cloud. It is not a confirmed explanation.
1 出典 1 関係 detected circled records the strength of came from the direction of was close in frequency to reported a frequency for reported a frequency for failed to find again was offered, and dismissed, as the source of is proposed as the source of 地図を操作, 1本指でページをスクロール、2本指で地図を移動・拡大。
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項目 The Wow! signal A strong narrowband radio signal recorded by the Big Ear telescope on 15 August 1977. It lasted the full 72 second window the telescope had on any point, and it never recurred. ユーザーの記述 ↑ detected It recorded the signal on 15 August 1977. 出典 1 場所 Big Ear radio telescope Nickname of the now defunct Ohio State University Radio Observatory. It could watch any given point in the sky for just 72 seconds. ユーザーの記述 ↑ records the strength of It is the strength of the signal across the 72 seconds. 出典 1 概念 6EQUJ5 The signal's intensity over time as printed. It is a measurement, not a message; the strongest reading, U, sits about thirty standard deviations above the background noise. ユーザーの記述 人物 Jerry R. Ehman An astronomer. Reviewing the data a few days later, he circled the reading on the printout and wrote Wow! beside it. In 1998 he gave the frequency as 1420.4556 MHz. ユーザーの記述 ↓ circled He circled 6EQUJ5 and wrote Wow! beside it. 出典 1 概念 6EQUJ5 The signal's intensity over time as printed. It is a measurement, not a message; the strongest reading, U, sits about thirty standard deviations above the background noise. ユーザーの記述 ↓ reported a frequency for He gave 1420.4556 MHz in 1998. 出典 1 項目 The Wow! signal A strong narrowband radio signal recorded by the Big Ear telescope on 15 August 1977. It lasted the full 72 second window the telescope had on any point, and it never recurred. ユーザーの記述 概念 6EQUJ5 The signal's intensity over time as printed. It is a measurement, not a message; the strongest reading, U, sits about thirty standard deviations above the background noise. ユーザーの記述 ↑ circled He circled 6EQUJ5 and wrote Wow! beside it. 出典 1 人物 Jerry R. Ehman An astronomer. Reviewing the data a few days later, he circled the reading on the printout and wrote Wow! beside it. In 1998 he gave the frequency as 1420.4556 MHz. ユーザーの記述 ↓ records the strength of It is the strength of the signal across the 72 seconds. 出典 1 項目 The Wow! signal A strong narrowband radio signal recorded by the Big Ear telescope on 15 August 1977. It lasted the full 72 second window the telescope had on any point, and it never recurred. ユーザーの記述 項目 The Wow! signal A strong narrowband radio signal recorded by the Big Ear telescope on 15 August 1977. It lasted the full 72 second window the telescope had on any point, and it never recurred. ユーザーの記述 ↑ detected It recorded the signal on 15 August 1977. 出典 1 場所 Big Ear radio telescope Nickname of the now defunct Ohio State University Radio Observatory. It could watch any given point in the sky for just 72 seconds. ユーザーの記述 ↓ came from the direction of About 2.5 degrees south of Chi Sagittarii. 出典 1 場所 Toward Sagittarius The signal came from roughly 2.5 degrees south of the fifth magnitude star group Chi Sagittarii. ユーザーの記述 共通の手がかりをあと8件見る AIの調査は下書きです。出典と文脈を確かめながらお読みください。
