Astronomy. A discrete source of radio waves outside the solar system (often subsequently identified as a galaxy). Now chiefly historical.
| 单词 | θ1278 |
| 释义 | the world > the universe > radio source > [noun] (11) radio star1949 Astronomy. A discrete source of radio waves outside the solar system (often subsequently identified as a galaxy). Now chiefly historical. X-ray star1964 any compact celestial emitter of X-rays (not necessarily a star), such as an X-ray binary or an X-ray pulsar. QSS1965 quasi-stellar source (of radio waves). X-ray nova1968 a celestial object that is a very strong but transient emitter of X-rays, typically a binary system with either a neutron star or a black hole as the… interpulse1969 Astronomy. A weaker pulse occurring between the main pulses of radiation from some pulsars. X-ray pulsar1969 a receptor in an X-ray binary that is a pulsar. X-ray binary1972 a celestial emitter of X-rays that has two components, with matter passing from one component (the donor) to the other (the accretor) giving rise… Subcategories:— X-ray burster (2) — blue shift (2) |
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