| 单词 | x-ray star |
| 释义 | > as lemmasX-ray star X-ray star n. Astronomy any compact celestial emitter of X-rays (not necessarily a star), such as an X-ray binary or an X-ray pulsar. ΘΚΠ the world > the universe > radio source > [noun] radio star1949 X-ray star1964 QSS1965 X-ray nova1968 interpulse1969 X-ray pulsar1969 X-ray binary1972 1964 Daily Tel. 31 Mar. 17/1 Evidence of the existence of a previously unknown kind of star has been collected by American astronomers. Using an Aerobee rocket..they found two distinct ‘X-ray stars’. 1977 Sci. Amer. Oct. 42/2 X-ray stars are dense remnants of stars that have exhausted their supply of nuclear energy and have collapsed under the attractive force of their own gravity. 2000 Proc. Amer. Philos. Soc. 144 340 An astonishingly bright X-ray star in the southern sky..came to be called Sco X-1, the first of the thousands of extra-solar X-ray sources subsequently discovered. < as lemmas |
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