| 单词 | black dwarf |
| 释义 | > as lemmasblack dwarf black dwarf n. Astronomy a star that is not luminous; spec. one resulting from the cooling of a white dwarf. ΘΚΠ the world > the universe > star > kind of star > small star > [noun] > black dwarf black dwarf1929 1929 R. H. Fowler Statist. Mech. xxi. 552 If such matter were removed by any cause from the interior of the black dwarf it could not then resume its ordinary state. 1933 Science 20 Jan. 71/2 Milne points out that we should have not only white dwarfs with degenerate cores, but still fainter orange and red dwarfs, stages of approach to the dead ‘black dwarf’. 1978 J. M. Pasachoff & M. L. Kutner University Astron. x. 284 Some black dwarfs come from featherweight stars.., stars that were not massive enough to begin hydrogen burning; others are cooled white dwarfs. 2002 K. Heusch tr. H. Fritzsch Curvature of Spacetime xiv. 185 Stars that are lighter, or even a bit heavier, than our Sun will be subject to a fate similar to that of the Sun: they will pass through a phase as white dwarfs, finally to end up as black dwarfs. < as lemmas |
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