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SDSS 1557 (SDSS J155720.77+091624.6, WD 1554+094) is a binary system composed of a white dwarf and a brown dwarf.The system is surrounded by a circumbinary debris disk.The debris disk was formed when a minor planet was tidally disrupted around the white dwarf in the past.
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 ...
White dwarfs can also exist as binaries or multiple star systems that only consist of white dwarfs. An example of a resolved triple white dwarf system is WD J1953-1019, discovered with Gaia DR2 data. [211] One interesting field is the study of remnant planetary systems around white dwarfs.
KPD 1930+2752 is a binary star system including a subdwarf B star and a probable white dwarf with relatively high mass. [6] Due to the nature of this astronomical system, it seems like a likely candidate for a potential type Ia supernova, a type of supernova which occurs when a white dwarf star takes on enough matter to approach the Chandrasekhar limit, the point at which electron degeneracy ...
SDSS J143317.78+101123.3 (shortened to SDSS J1433+1011, more simply J1433) is a binary system composed of a white dwarf and a brown dwarf. The brown dwarf is about 57 Jupiter masses and has transitioned from a stellar object to a brown dwarf due to losing mass to the white dwarf. As of 2016, this was the only known binary of this type. [4]
The white dwarf PHL 5038A was discovered in 2006 in data from the Sloan Digital Sky Survey [3] and the brown dwarf companion was discovered in 2009 from UKIDSS infrared excess and confirmed with Gemini North to be a spacially resolved binary. [4] It was only the fourth known brown dwarf to orbit a white dwarf at the time. The others were GD ...
Van Maanen's star is also the nearest solitary white dwarf [4] First white dwarf with a planet WD B1620−26: 2003 PSR B1620-26 b (planet) This planet is a circumbinary planet, which circles both stars in the PSR B1620-26 system [5] [6] First singular white dwarf with a planet WD 1145+017: 2015 WD 1145+017 b: Planet is extremely small and is ...
In addition to a double pulsar system, a whole range of differing two-body systems are known where only one member of the system is a pulsar. Known examples are variations on a binary star : A pulsar–white dwarf system; e.g, PSR B1620−26. A pulsar–neutron star system, e.g, PSR B1913+16.