Английская Википедия:Cool Companions on Ultrawide Orbits

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COCONUTS-2b

The COol Companions ON Ultrawide orbiTS (COCONUTS) program is a large-scale survey for wide-orbit planetary and substellar companions considered the first survey of this type of celestial bodies.[1] In 2021, the team announced COCONUTS-2b, the closest exoplanet directly imaged ever.[2] The program is a dedicated large-scale search for wide-orbit giant planets and brown dwarf companions, targeting a sample of 300,000 stars. By using multi-wavelength photometry and multi-epoch astrometry, astronomers are able to assess the candidates' companionship and ultracool nature.[3]

List of discoveries

Name companion class mass (Шаблон:Jupiter mass) orbital separation (au) host star star class host star mass (Шаблон:Solar mass) discovery year reference
COCONUTS-1B brown dwarf 15.4 or 69.3 1280 PSO J058.9855+45.4184 old white dwarf 0.548 2020 [4]
COCONUTS-2b exoplanet 6.3 6471 L 34-26 young M-dwarf 0.37 2021 [5]
COCONUTS-3B brown dwarf 39 1891 UCAC4 374-046899 young M-dwarf 0.123 2022 [6]

See also

References

Шаблон:Reflist