Astronomy:WD J0651+2844
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Short description: Star in the constellation Gemini
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Gemini |
| Right ascension | 06h 51m 33.338s |
| Declination | 28° 44′ 23.37″ |
| Orbit[1] | |
| Period (P) | 12.75344 minutes |
| Inclination (i) | 84.4° |
| Details | |
| Mass | 0.26 / 0.50[1] M☉ |
| Radius | 0.0371 / 0.0142[1] R☉ |
| Temperature | 16530 / 8700[1] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
WD J0651+2844 is a white dwarf binary star system composed of two white dwarfs.[2] They are approximately 120,000 km apart and complete an orbit around their barycenter in less than 13 minutes.[1] 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
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Hermes, J. J. (2012), "Rapid Orbital Decay in the 12.75-minute Binary White Dwarf J0651+2844", The Astrophysical Journal Letters 757 (2): L21, doi:10.1088/2041-8205/757/2/L21, Bibcode: 2012ApJ...757L..21H
- ↑ "Space-warping white dwarfs produce gravitational waves". SpaceDaily. 3 September 2012. http://www.spacedaily.com/reports/Space_warping_white_dwarfs_produce_gravitational_waves_999.html.
- ↑ "Space-warping white dwarfs produce gravitational waves". e! Science News. 28 August 2012. http://esciencenews.com/articles/2012/08/28/space.warping.white.dwarfs.produce.gravitational.waves.
- ↑ Palmer, J. (29 August 2012). "Gravitational waves spotted from white-dwarf pair". BBC News. https://www.bbc.co.uk/news/science-environment-19408363.
- ↑ "Einstein's space 'ripples' confirmed". United Press International. 28 August 2012. http://www.upi.com/Science_News/2012/08/28/Einsteins-space-ripples-confirmed/UPI-98791346199953/.
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