QS Telescopii
QS Telescopii is a faint binary star system in the constellation Telescopium.[1] It is composed of a white dwarf and main sequence donor star, in this case the two are so close and fused into orbit facing one another. Known as polars, material from the donor star does not form an accretion disk around the white dwarf, but rather streams directly onto it.[2] This is due to the presence of the white dwarf's strong magnetic field.[3]
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Telescopium |
| Right ascension | 19h 38m 35.81s[1] |
| Declination | −46° 12′ 57.0″[1] |
| Characteristics | |
| Spectral type | CV[1] |
| Astrometry | |
| Radial velocity (Rv) | 110[1] km/s |
| Database references | |
| SIMBAD | data |
See also
- Variable stars
- Polar (cataclysmic variable)
- AM Herculis
References
- "V* QS Tel -- Cataclysmic Var. AM Her type". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 24 August 2014.
- Gerke, Jill R.; Howell, Steve B.; Walter, Frederick M. (2006). "Polars Changing State: Multiwavelength Long‐Term Photometry and Spectroscopy of QS Telescopii, V834 Centauri, and BL Hydri". Publications of the Astronomical Society of the Pacific. 118 (843): 678–86. arXiv:astro-ph/0603097. Bibcode:2006PASP..118..678G. doi:10.1086/503753.
- Traulsen, I.; Reinsch, K.; Schwope, A. D.; Burwitz, V.; et al. (2011). "XMM-Newton observations of the X-ray soft polar QS Telescopii". Astronomy and Astrophysics. 529 (A116): 7. arXiv:1103.4575. Bibcode:2011A&A...529A.116T. doi:10.1051/0004-6361/201016352.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.