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DENIS-P J082303.1−491201 b

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DENIS-P J082303.1-491201 b
Discovery[1]
Discovered bySahlmann et al. (2013)
Discovery siteESO telescopes at the La Silla Paranal Observatory
Discovery dateAugust 2013
Astrometry
Designations
2MASS J08230313-4912012 b[2]
Orbital characteristics[2]
0.36±0.01 AU
Eccentricity0.345+0.068
−0.064
246.36+1.38
−1.35 days
Inclination56.6+1.9
−2.1 deg
36.3+7.2
−8.4 deg
Physical characteristics
Mass28.5±1.9 MJ[2]
Temperature1670
Spectral type
L5.5[3]

DENIS-P J082303.1-491201 b (alias 2MASS J08230313-4912012 b) is a substellar object, classified as either an exoplanet or a brown dwarf, orbiting DENIS-P J082303.1-491201,[4] an L1.5-type brown dwarf in the constellation Vela.[2]

Discovery

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DENIS-P J082303.1-491201 b was discovered by Sahlmann et al. (2013) using the ESO telescopes at the La Silla Paranal Observatory.[1] It is part of an ultracool binary system.[1]

Properties

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It is located 20.77 parsecs (67.7 ly) from Earth. At 28.5±1.9 MJ,[2] it is listed as among the most massive planets in the NASA Exoplanet Archive.

It orbits the nearby L1.5-type brown dwarf DENIS-P J082303.1-491201, which is 7.5±0.7% the mass of the Sun,[1] and has an orbital period of about 246 days.[1][2]

See also

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References

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  1. ^ a b c d e Sahlmann, J.; Lazorenko, P. F.; Ségransan, D.; Martín, Eduardo L.; Queloz, D.; et al. (August 2013). "Astrometric orbit of a low-mass companion to an ultracool dwarf". Astronomy & Astrophysics. 556. A133. arXiv:1306.3225. Bibcode:2013A&A...556A.133S. doi:10.1051/0004-6361/201321871. S2CID 119193690.
  2. ^ a b c d e f "DENIS-P J082303.1-491201 b". Caltech. Retrieved 8 March 2014.
  3. ^ Bardalez Gagliuffi, Daniella C.; Burgasser, Adam J.; Schmidt, Sarah J.; Theissen, Christopher; Gagné, Jonathan; Gillon, Michael; Sahlmann, Johannes; Faherty, Jacqueline K.; Gelino, Christopher; Cruz, Kelle L.; Skrzypek, Nathalie; Looper, Dagny (2019). "The Ultracool Spe Xtroscopic Survey. I. Volume-limited Spectroscopic Sample and Luminosity Function of M7−L5 Ultracool Dwarfs". The Astrophysical Journal. 883 (2): 205. arXiv:1906.04166. Bibcode:2019ApJ...883..205B. doi:10.3847/1538-4357/ab253d. S2CID 184487061.
  4. ^ "2MASS J08230313-4912012". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 March 2014.
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