WX Pyxidis
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File:WXPyxLightCurve.png Near-infrared (J band) light curves for WX Pyxidis, showing variation over the white dwarf rotation period (top) and orbital period (bottom). Adapted from Joshi et al. (2011)[1] | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pyxis |
| Right ascension | 08h 33m 05.7636s[2] |
| Declination | −22° 48′ 31.981″[2] |
| Apparent magnitude (V) | 16.2 - 17.74[3] |
| Characteristics | |
| Spectral type | white dwarf + M2[1] |
| Variable type | Intermediate polar |
| Astrometry | |
| Proper motion (μ) | RA: −4.627[2] mas/yr Dec.: 1.378[2] mas/yr |
| Parallax (π) | 0.5991±0.0851 mas[2] |
| Distance | 1530[1] pc |
| Details | |
| White dwarf | |
| Mass | 1.4[4] M☉ |
| Other designations | |
| 1E 0830.9-2238[5] | |
| Database references | |
| SIMBAD | data |
WX Pyxidis is a cataclysmic variable star system in the constellation Pyxis. Its X-ray emissions were discovered in 1984, after which a visual correlate was searched for. It is classed as an intermediate polar system, composed of a white dwarf and red dwarf with a calculated spectral type of M2V in close orbit around each other and the spin of the degenerate star is such that it does not present the same face to the other star.[1] The degenerate star spins on its axis every 25 minutes.[6] The stars are estimated to take 5.3 hours to orbit each other and the system is 1530 parsecs distant.[1]
References
[edit | edit source]- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Gaia DR2 record for this source at VizieR.
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
