en DENIS-P J082303.1−491201 b

DENIS-P J082303.1-491201 b
Discovery
Discovered by	Sahlmann et al. (2013)
Discovery site	ESO telescopes at the La Silla Paranal Observatory
Discovery date	August 2013
Detection method	Astrometry
Designations
Alternative names	2MASS J08230313-4912012 b
Orbital characteristics
Semi-major axis	0.36±0.01 AU
Eccentricity	0.345+0.068; −0.064
Orbital period (sidereal)	246.36+1.38; −1.35 days
Inclination	56.6+1.9; −2.1 deg
Longitude of perihelion	36.3+7.2; −8.4 deg
Physical characteristics
Mass	28.5±1.9 MJ
Temperature	1670
Spectral type	L5.5

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

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

It is located 20.77 parsecs (67.7 ly) from Earth. At 28.5±1.9 M_J,^[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]

References

^ ^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.
^ ^a ^b ^c ^d ^e ^f "DENIS-P J082303.1-491201 b". Caltech. Retrieved 8 March 2014.
^ 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.
^ "2MASS J08230313-4912012". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 March 2014.

External links

DENIS Deep Near Infrared Survey of the Southern Sky

[HU-201308-1] 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.

[CT-Exo-2014-2] ^ ^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.

[SIM-2014-4] "2MASS J08230313-4912012". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 March 2014.

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[3]

[4]

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DENIS-P J082303.1−491201 b

Discovery

Properties

See also

References

External links

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