| 单词 | neutron star |
| 释义 | > as lemmasneutron star neutron star n. Astronomy a small, extremely dense star composed predominantly of closely packed neutrons, which is believed to have a mass similar to that of the sun but a diameter of only a few kilometres, and is thought to form by the collapse of a star under its own gravity (cf. pulsar n.). ΘΚΠ the world > the universe > star > kind of star > small star > [noun] > dwarf > neutron star neutron star1934 pulsar1968 pulsator1977 magnetar1992 1934 W. Baade & F. Zwicky in Physical Rev. 45 138/2 We advance the view that supernovae represent the transitions from ordinary stars into neutron stars, which in their final stages consist of extremely closely packed neutrons. 1977 Dædalus Fall 45 Pulsars, that is, rotating neutron stars, have been detected in the Crab Nebula and in Vela X, a supernova remnant about ten times older than the Crab Nebula. 1998 New Scientist 2 May 15/1 All known soft gamma repeaters lie within the debris of exploded stars, so scientists suspect the flashes come from neutron stars—the collapsed remains of stellar cores. < as lemmas |
| 随便看 |
|
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。