...The longer the wavelength, the wider the radio waves spread and the stronger they become. At wavelengths of several tens of centimeters or more, the strongest radio waves from the sky come from the galactic center and disk components, and these were the radio waves discovered by chance by K. Jansky (1939). The existence of a halo component was accepted because the distribution of radio wave intensity is somewhat anisotropic, it is stronger in the direction of the galactic center, and the Andromeda Galaxy also has a halo, but it cannot be said that it has been fully confirmed. ... From [Radio Astronomy] … *Some of the terminology explanations that mention "Jansky, KG" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…波長が長いほどこの電波は大きく広がり強度も高くなっている。波長数十cm以上では,天空からの電波は銀河中心および円盤成分がもっとも強く,偶然のチャンスからジャンスキーK.Janskyが発見(1939)したのもこの電波である。ハロー成分の存在は,電波強度の分布がやや非等方性をもち,銀河中心の方向で強いこと,アンドロメダ銀河もハローをもつことなどから受け入れられていたが,十分に確認されているとはいえない。… 【電波天文学】より… ※「Jansky,K.G.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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