Astronomy: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
Orbital period246.36+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 |♃|J}}}}}}[2]
Physics1670
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

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 |♃|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]

See also


References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 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. doi:10.1051/0004-6361/201321871. Bibcode: 2013A&A...556A.133S. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "DENIS-P J082303.1-491201 b". Caltech. http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=DENIS-P+J082303.1-491201+b&type=CONFIRMED_PLANET. 
  3. ↑ Bardalez Gagliuffi, Daniella C.; Burgasser, Adam J.; Schmidt, Sarah J.; Theissen, Christopher; Gagné, Jonathan; Gillon, Michael; Sahlmann, Johannes; Faherty, Jacqueline K. et al. (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. doi:10.3847/1538-4357/ab253d. Bibcode: 2019ApJ...883..205B. 
  4. ↑ "2MASS J08230313-4912012". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=2MASS+J08230313-4912012. 

External links



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