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. In 2021, the team announced COCONUTS-2b , the closest exoplanet directly imaged ever. 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.
List of discoveries
See also
References
Zhang, Z.; Liu, M.; Magnier, E. (2020-01-01). "COCONUTS: COol Companions ON Ultrawide orbiTS" . American Astronomical Society Meeting Abstracts #235 . 235 : 148.06. Bibcode :2020AAS...23514806Z . Archived from the original on 2022-04-02. Retrieved 2022-04-02.
Siegel, Ethan. "Astronomers Go Nuts For Closest Exoplanet Directly Imaged Ever: COCONUTS-2b" . Forbes . Archived from the original on 2021-11-22. Retrieved 2022-04-02.
Kooser, Amanda. "Massive exoplanet 'Coconuts-2b' could help reveal the secrets of young gas giants" . CNET . Archived from the original on 2022-04-02. Retrieved 2022-04-02.
Zhang, Zhoujian; Liu, Michael C.; Hermes, J. J.; Magnier, Eugene A.; Marley, Mark S.; Tremblay, Pier-Emmanuel; Tucker, Michael A.; Do, Aaron; Payne, Anna V.; Shappee, Benjamin J. (2020-03-01). "COol Companions ON Ultrawide orbiTS (COCONUTS). I. A High-gravity T4 Benchmark around an Old White Dwarf and a Re-examination of the Surface-gravity Dependence of the L/T Transition" . The Astrophysical Journal . 891 (2): 171. arXiv :2002.05723 . Bibcode :2020ApJ...891..171Z . doi :10.3847/1538-4357/ab765c . ISSN 0004-637X .
Zhang, Zhoujian; Liu, Michael C.; Claytor, Zachary R.; Best, William M. J.; Dupuy, Trent J.; Siverd, Robert J. (2021-08-01). "The Second Discovery from the COCONUTS Program: A Cold Wide-orbit Exoplanet around a Young Field M Dwarf at 10.9 pc" . The Astrophysical Journal . 916 (2): L11. arXiv :2107.02805 . Bibcode :2021ApJ...916L..11Z . doi :10.3847/2041-8213/ac1123 . ISSN 0004-637X .
Zhang, Zhoujian; Liu, Michael C.; Morley, Caroline V.; Magnier, Eugene A.; Tucker, Michael A.; Vanderbosch, Zachary P.; Do, Aaron; Shappee, Benjamin J. (2022-08-01). "COol Companions ON Ultrawide orbiTS (COCONUTS). III. A Very Red L6 Benchmark Brown Dwarf around a Young M5 Dwarf" . The Astrophysical Journal . 935 : 15. arXiv :2207.02865 . Bibcode :2022ApJ...935...15Z . doi :10.3847/1538-4357/ac7ce9 . ISSN 0004-637X .
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