翻訳と辞書 |
3C 147
3C 147 (B0538+498) is a compact steep-spectrum (CSS) quasar〔 that was discovered in 1964. It is located in the constellation Auriga not far in the sky from the 5th magnitude star Omicron Aurigae. The "distance" of a far away galaxy depends on what distance measurement you use. With a redshift of 0.545,〔〔 light from this active galaxy is estimated to have taken around 5.1 billion years to reach us.〔 But as a result of the expansion of the Universe, the present (co-moving) distance to this galaxy is about 6.4 billion light-years (1974 Mpc).〔 Very Long Baseline Array (VLBA) observations have identified a complex central region that is dominated by two bright components, A and B.〔 The separation between the two central components of the source seems to be increasing with an apparent velocity (superluminal motion) of 1.2 ± 0.4 c.〔 ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「3C 147」の詳細全文を読む
スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|