| 翻訳と辞書 |
3C 273
3C 273 is a quasar located in the constellation Virgo. It was the first quasar ever to be identified.
It is the optically brightest quasar in our sky (m ~12.9), and one of the closest with a redshift, ''z'', of 0.158.〔 A luminosity distance of DL = may be calculated from ''z''. It is also one of the most luminous quasars known, with an absolute magnitude of −26.7,〔(【引用サイトリンク】url=http://adsabs.harvard.edu/full/1964ApJ...140....1G )〕 meaning that if it were only as distant as Pollux (~10 parsecs) it would appear nearly as bright in the sky as the Sun. Since the sun's absolute magnitude is 4.83, it means that the quasar is over 4 trillion times brighter than the sun. Its mass has been measured to be 886 ± 187 million solar masses through broad emission-line reverberation mapping.
==Large-scale jet==
The quasar has a large-scale visible jet, which measures ~ long, having an apparent size of 23″.〔 In 1995 optical imaging of the jet using the Hubble Space Telescope revealed a structured morphology evidenced by repeated bright knots interlaced by areas of weak emission.〔
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 273」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.
|
|