HD 106906 b

HD 106906 b
The star HD 106906 and the planet HD 106906 b, with Neptune's orbit for comparison
Discovery
Discovered byVanessa Bailey, et al.[1]
Discovery siteMagellan Telescopes at the Las Campanas Observatory in Chile[1]
Discovery dateDecember 4, 2013 (published)[2]
Direct imaging[3]
Orbital characteristics
Mean orbit radius
738 AU (110 billion km)[4]
8,910.501 years[5]
StarHD 106906
Physical characteristics
1.54+0.04
−0.05 RJ[6]
Mass11±2 MJup[2]
Temperature≈1,800 K (1,500 °C; 2,800 °F)[2]

HD 106906 b is a directly imaged planetary-mass companion[2] and exoplanet orbiting the star HD 106906, in the constellation Crux at about 336 ± 13 light-years (103 ± 4 pc) from Earth.[5] It is estimated to be about eleven times the mass of Jupiter and is located about 738 AU away from its host star.[4] HD 106906 b is an oddity; while its mass estimate is nominally consistent with identifying it as an exoplanet, it appears at a much wider separation from its parent star than thought possible for in-situ formation from a protoplanetary disk.[7]

  1. ^ a b Morin, Monte (December 5, 2013). "Giant alien world discovered where it should not exist". Los Angeles Times. Retrieved December 8, 2013.
  2. ^ a b c d Bailey, Vanessa; et al. (January 2014). "HD 106906 b: A planetary-mass companion outside a massive debris disk". The Astrophysical Journal Letters. 780 (1): L4. arXiv:1312.1265. Bibcode:2014ApJ...780L...4B. doi:10.1088/2041-8205/780/1/L4. S2CID 119113709.
  3. ^ "Planet HD 106906 b". Extrasolar Planets Encyclopaedia. Archived from the original on October 31, 2019. Retrieved December 8, 2013.
  4. ^ a b De Rosa, Robert J.; Kalas, Paul (February 2019). "A Near-coplanar Stellar Flyby of the Planet Host Star HD 106906". The Astronomical Journal. 157 (3). 125. arXiv:1902.10220. Bibcode:2019AJ....157..125D. doi:10.3847/1538-3881/ab0109. S2CID 119191779.
  5. ^ a b Rodet, L.; et al. (June 2017). "Origin of the wide-orbit circumbinary giant planet HD 106906. A dynamical scenario and its impact on the disk". Astronomy & Astrophysics. 602. A12. arXiv:1703.01857. Bibcode:2017A&A...602A..12R. doi:10.1051/0004-6361/201630269. S2CID 119424481.
  6. ^ Bryan, Marta L.; Ginzburg, Sivan; Chiang, Eugene; Morley, Caroline; Bowler, Brendan P.; Xuan, Jerry W.; Knutson, Heather A. (December 1, 2020). "As the Worlds Turn: Constraining Spin Evolution in the Planetary-mass Regime". The Astrophysical Journal. 905 (1): 37. arXiv:2010.07315. Bibcode:2020ApJ...905...37B. doi:10.3847/1538-4357/abc0ef. ISSN 0004-637X.
  7. ^ Osborne, Hannah (December 6, 2013). "Mystery Planet 'That Shouldn't Exist' Baffles Astronomers". International Business Times. Archived from the original on December 13, 2013. Retrieved December 8, 2013.