| 释义 |
ˌquasi-ˈstellar, a. Astr.
[f. quasi adv. and prefix + stellar a.]
Giving a star-like (i.e. unresolved) image on a photograph but believed not to be a star; chiefly in quasi-stellar object (= quasar), ˌquasi-stellar (radio) source.
1963Sci. Amer. Dec. 54/1 In recognition of their small size, and for lack of a better name, they are called quasi-stellar radio sources. 1964New Scientist 28 May 532/1 The highly enigmatic ‘quasi-stellar objects’ whose discovery over the past year or so has been of considerable excitement to astronomers. 1964Listener 20 Aug. 266/1 Radio astronomy has already revealed to us an entirely new universe... But the record for excitement and unexpectedness must surely go to the discovery within the last year of the quasi-stellar radio sources. 1973Nature 23 Nov. 185/1 The physical nature of quasistellar objects is as puzzling now as it was 10 years ago when their large redshifts were discovered. 1973Smith & Jacobs Introd. Astron. & Astrophysics xix. 493 Some QSOs are strong radio sources; indeed, optical identification of such quasi-stellar sources (QSS) first drew attention to the QSOs. The majority of QSOs, however, are weak radio sources or altogether radio-quiet. 1977J. Narlikar Struct. Universe vii. 215 When quasi-stellar objects were first discovered, some with red-shifts close to z = 2, it was hoped that they would settle the cosmological issue once for all... Unfortunately QSOs have made the issue more complicated than before. 1978Pasachoff & Kutner University Astron. xxviii. 713 Sources in this new class resembled the quasi-stellar radio sources in being quasi-stellar and in having large redshifts but did not emit any detectable radio radiation. These were called quasi-stellar objects (QSO's). |