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Rho Indi b

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Rho Indi b
Discovery [1]
Discovered by Jones et al.
Discovery site Australia
Discovery dateSept 17, 2002
Doppler Spectroscopy
Designations
HD 216437 b
HIP 113137 b
Orbital characteristics [2]
2.501+0.036
−0.037  AU
Eccentricity 0.318±0.028
1336±12  d
3.658±0.034  yr
Average orbital speed
19.92 km/s
Inclination 35.0°+10.0°
−6.1° or 145.0°+6.1°
−10.0°
95.698 mas
117.0°±14.0°
2,455,959+38
−35  JD
64.5°+5.5°
−5.4°
Semi-amplitude 39.0±1.0 m/s
Star Rho Indi
Physical characteristics [2]
Mass 3.88±0.73  MJ

    Rho Indi b is an exoplanet that orbits around Rho Indi. Its semimajor axis is 2.54 AU placing just outside the star's habitable zone. The planet takes 3.7 years to orbit the star. It is over twice as massive as Jupiter. Since the inclination of the orbit to the line-of-sight was initially unknown, only a lower bound on the planet's mass could be determined. [1] In 2023, the inclination and true mass of Rho Indi b were determined via astrometry. [2]

    Contents

    See also

    References

    1. 1 2 Jones, Hugh R. A.; Paul Butler, R.; Marcy, Geoffrey W.; Tinney, Chris G.; Penny, Alan J.; McCarthy, Chris; Carter, Brad D. (2002). "Extrasolar planets around HD 196050, HD 216437 and HD 160691". Monthly Notices of the Royal Astronomical Society . 337 (4): 1170–1178. arXiv: astro-ph/0206216 . Bibcode:2002MNRAS.337.1170J. doi: 10.1046/j.1365-8711.2002.05787.x . S2CID   119520409.
    2. 1 2 3 Xiao, Guang-Yao; Liu, Yu-Juan; et al. (May 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics . 23 (5): 055022. arXiv: 2303.12409 . Bibcode:2023RAA....23e5022X. doi:10.1088/1674-4527/accb7e.
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