HD 96167

HD 96167
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Crater
Right ascension 11h 05m 15.0688s[1]
Declination –10° 17′ 28.6947″[1]
Apparent magnitude (V) 8.09[2]
Characteristics
Spectral type G5V[3] + M4[4]
B−V color index 0.731±0.017[2]
Variable type none
Astrometry
Radial velocity (Rv)+12.05±0.19[1] km/s
Proper motion (μ) RA: −50.494±0.081[1] mas/yr
Dec.: −9.496±0.072[1] mas/yr
Parallax (π)11.6947 ± 0.0565 mas[1]
Distance279 ± 1 ly
(85.5 ± 0.4 pc)
Absolute magnitude (MV)3.41[2]
Position (relative to HD 96167 A)[4]
ComponentHD 96167 B
Epoch of observation2013
Angular distance5.873±0.018″
Position angle297.06±0.10°
Projected separation506 AU
Details[5]
HD 96167 A
Mass1.16±0.05 M☉
Radius1.73±0.18 R☉
Luminosity3.39+1.18
−0.88 L☉
Surface gravity (log g)4.15±0.06 cgs
Temperature5,749±25 K
Metallicity [Fe/H]0.35±0.05 dex
Rotational velocity (v sin i)1.03±0.36 km/s
Age5.62±0.83 Gyr
HD 96167 B
Mass0.23[4] M☉
Other designations
BD–09° 3201, Gaia DR2 3758718711877270784, HD 96167, HIP 54195, SAO 156444, PPM 223905, WDS 11053-1017, 2MASS J11051506-1017286[6]
Database references
SIMBADdata
Exoplanet Archivedata

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,[2] 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.[1]

The primary component, designated HD 96167 A, is an ordinary G-type main-sequence star with a stellar classification of G5V.[3] It has also been classified as a subgiant star,[7] suggesting it is somewhat more evolved having exhausted the hydrogen at its core. The star has an absolute magnitude of 3.41,[2] placing it about a magnitude above the main sequence.[7] It is metal rich and is around six billion years old.[5] 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.[4]

In 2009 it was found that primary star HD 96167 A is orbited by a Jovian planet on an eccentric orbit.[7]

The HD 96167 planetary system[8]
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. ^ a b c d e f g 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. ^ a b c d e 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. ^ a b 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. ^ a b c d 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. ^ a b 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. ^ a b c 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.