Wolf–Rayetn.

/ˈvɒlfrɛjɛ//ˈwʊlfrɛjɛ/

Etymology: < the names of C. J. E. Wolf (1827–1918) and G. A. P. Rayet (1839–1906), French astronomers.

Astronomy.

Used attributively to denote any of a class of hot white-to-blue stars (first described by Wolf and Rayet in 1867) which are characterized by bright, broad spectral lines due to hydrogen, helium, carbon, or nitrogen and are believed to be short-lived and unstable.

ΘΚΠ

the world > the universe > star > kind of star > by spectrum > [adjective]

Wolf–Rayet1890

Sirian1892

1890 A. M. Clerke Syst. Stars v. 71 Accurate measurements of the three original Wolf-Rayet stars..were made.

1930 R. H. Baker Astron. ix. 356 The Wolf-Rayet stars are distinguished from the other Class O stars by the great width of the bright lines in their spectra.

1978 J. M. Pasachoff & M. L. Kutner University Astron. ii. 40 Astronomers think that the emission in Wolf-Rayet stars comes from shells of material that the star has ejected into the space surrounding it.

This entry has not yet been fully updated (first published 1986; most recently modified version published online September 2018).

单词	wolf–rayet
释义	Wolf–Rayetn. /ˈvɒlfrɛjɛ//ˈwʊlfrɛjɛ/ Etymology: < the names of C. J. E. Wolf (1827–1918) and G. A. P. Rayet (1839–1906), French astronomers. Astronomy. Used attributively to denote any of a class of hot white-to-blue stars (first described by Wolf and Rayet in 1867) which are characterized by bright, broad spectral lines due to hydrogen, helium, carbon, or nitrogen and are believed to be short-lived and unstable. ΘΚΠ the world > the universe > star > kind of star > by spectrum > [adjective] Wolf–Rayet1890 Sirian1892 1890 A. M. Clerke Syst. Stars v. 71 Accurate measurements of the three original Wolf-Rayet stars..were made. 1930 R. H. Baker Astron. ix. 356 The Wolf-Rayet stars are distinguished from the other Class O stars by the great width of the bright lines in their spectra. 1978 J. M. Pasachoff & M. L. Kutner University Astron. ii. 40 Astronomers think that the emission in Wolf-Rayet stars comes from shells of material that the star has ejected into the space surrounding it. This entry has not yet been fully updated (first published 1986; most recently modified version published online September 2018). < n.1890
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