WD J0651+2844: Difference between revisions
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[[Category:Eclipsing binaries]] |
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[[Category:Spectroscopic binaries]] |
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[[Category:White dwarf stars]] |
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Revision as of 14:09, 6 September 2012
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | |
| Right ascension | 06h 51m 33.338s |
| Declination | 28° 44′ 23.37″ |
| Characteristics | |
| Astrometry | |
| Details | |
| Other designations | |
| Database references | |
SDSS J065133.338+284423.37 (nicknamed J0651) is a white dwarf binary star system composed of two white dwarfs.[1] They are approximately 120,000km apart and complete an orbit around their barycenter in less than 13 minutes.[2] This produces an eclipse every 6 minutes. This makes it possible to gather enough data to produce extremely accurate predictions of each future eclipse. The eclipse times deviate from the time predicted in a way consistent with gravitational waves.[3][4][5]
References
- ^ "Space-warping white dwarfs produce gravitational waves". SpaceDaily. 3 September 2012.
- ^ J. J. Hermes, Mukremin Kilic, Warren R. Brown, D. E. Winget, Carlos Allende Prieto, A. Gianninas, Anjum S. Mukadam, Antonio Cabrera-Lavers, Scott J. Kenyon. "Rapid Orbital Decay in the 12.75-minute WD+WD Binary J0651+2844".
{{cite web}}: CS1 maint: multiple names: authors list (link) - ^ "Space-warping white dwarfs produce gravitational waves". e! Science News. 2012-08-28. Retrieved 2012-09-01.
- ^ Palmer, Jason. "BBC News - Gravitational waves spotted from white-dwarf pair". Bbc.co.uk. Retrieved 2012-09-01.
- ^ UPI (2012-08-28). "Einstein's space 'ripples' confirmed". UPI.com. Retrieved 2012-09-01.