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  • 21 Aug, 2019

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HD 96167

HD 96167 is a double star system with an exoplanetary companion in the southern constellation of Crater. The apparent visual magnitude of this system is 8.09, which is too faint to be readily visible to the naked eye. It is located at a distance of approximately 279 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +12 km/s.

The primary component, designated HD 96167 A, is an ordinary G-type main-sequence star with a stellar classification of G5V. It has also been classified as a subgiant star, suggesting it is somewhat more evolved having exhausted the hydrogen at its core. The star has an absolute magnitude of 3.41, placing it about a magnitude above the main sequence. It is metal rich and is around six billion years old. This star is larger, brighter and more massive than the Sun.

A faint co-moving stellar companion, component HD 96167 B, was detected in 2014 at a projected separation 506 AU from the primary. The existence of additional stellar companions was ruled out at projected distances from 51 to 740 astronomical units.

In 2009 it was found that primary star HD 96167 A is orbited by a Jovian planet on an eccentric orbit.

The HD 96167 planetary system
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥0.71±0.18 MJ 1.332±0.092 498.1±0.81 0.681±0.033

See also

References

  1. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644.
  3. ^ Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars". Michigan Spectral Survey. 5. Bibcode:1999MSS...C05....0H.
  4. ^ Mugrauer, M.; Ginski, C. (12 May 2015). "High-contrast imaging search for stellar and substellar companions of exoplanet host stars". Monthly Notices of the Royal Astronomical Society. 450 (3): 3127–3136. Bibcode:2015MNRAS.450.3127M. doi:10.1093/mnras/stv771. hdl:1887/49340. Retrieved 19 June 2020.
  5. ^ Jofré, E.; et al. (2015). "Stellar parameters and chemical abundances of 223 evolved stars with and without planets". Astronomy & Astrophysics. 574: A50. arXiv:1410.6422. Bibcode:2015A&A...574A..50J. doi:10.1051/0004-6361/201424474. S2CID 53666931.
  6. ^ "HD 96167". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-09-21.
  7. ^ Peek, John Asher; et al. (2009). "Old, rich, and eccentric: two jovian planets orbiting evolved metal-rich stars". Publications of the Astronomical Society of the Pacific. 121 (880): 613–620. arXiv:0904.2786. Bibcode:2009PASP..121..613P. doi:10.1086/599862.
  8. ^ Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5. S2CID 119243619.