Wolf-Rayet binaries: old friends and new acquaintances
| Autor: | R. Gamen, S. Giménez Benítez, N. I. Morrell, V. S. Niemela |
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| Rok vydání: | 1999 |
| Předmět: |
Physics
010504 meteorology & atmospheric sciences 0103 physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics::Earth and Planetary Astrophysics 010303 astronomy & astrophysics 01 natural sciences Astrophysics::Galaxy Astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Symposium - International Astronomical Union. 193:26-37 |
| ISSN: | 0074-1809 |
| DOI: | 10.1017/s0074180900204890 |
| Popis: | Observations of WR stars in binary systems are discussed, emphasizing constraints on our knowledge of the binary frequency of WR stars, and of WR stars as a distinctive class of objects. Radial velocity orbits of newly discovered binaries, e.g., WR 29, a short period WN7+OB binary in our Galaxy, and SMC/AB 7, a massive WN+O7 binary in the Small Magellanic Cloud, are presented. New spectroscopic observations of binary systems with previously known orbits are also reported, showing in the case of WR 21 evidence of change of the orbital elements as derived from different spectral lines. An elliptic orbit for CV Ser is also illustrated. |
| Databáze: | OpenAIRE |
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