…They are also called quasars, quasi-stellar objects, or QSOs. A distinction is sometimes made between quasi-stellar radio sources (QSSs), which emit radio waves, and quasi-stellar galaxies (QSGs), which emit very little radio waves. They look like stars on astronomical plates (i.e., less than an arc second in size), but they are not stars. … *Some of the terminology that refers to "quasi-stellar galaxy" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…準星,クエーサーquasar,QSO(quasi‐stellar objectの略)とも呼ばれる。QSOを,電波を放射している恒星状電波源QSS(quasi‐stellar radio sourceの略)と,電波をほとんど出していない恒星状銀河QSG(quasi‐stellar galaxyの略)に区別することもある。天体写真乾板上で星のように(すなわち角度で1秒以下の大きさ)見えるが,星ではない。… ※「quasi-stellar galaxy」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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