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  A Planetary Companion around GJ 3021
(HD 1237, HIP 1292)



  Last update: January the 7th 2005

 
 
 
  • "The CORALIE survey for southern extrasolar planets V: 3 new extrasolar planets"
    D. Naef, M. Mayor, F. Pepe, D. Queloz, N.C. Santos, S. Udry, M . Burnet, 2001
    A&A 375, 205 (ADS)

  • Announcement Email to Exoplanets

  • Proceedings of the "Disks, Planetesimals and Planets" Conference, Tenerife, January 2000, (Naef et al.)

  • Larger image (373 kb)


  • Orbital solution (from Naef et al. 2001):

    Object
    Period
    (days)
    T0
    (JD - 2 400 000)
    Eccentricity
    V
    (km/s)
    Omega
    (deg)
    K1
    (km/s)
    m2sini
    (M_Jup)
    a
    (AU)
    N
    Residuals
    (m/s)
    GJ 3021
    133.71 +/- 0.20
    51545.86 +/- 0.64
    0.511 +/- 0.017
    -5.806 +/- 0.003
    290.7 +/- 3.0
    0.167 +/- 0.004
    3.37
    0.49
    61
    19.2


  • Stellar properties:

    Parameter
    Value
    Reference
    Sp. Type
    G6V
    Hipparcos
    pi (mas)
    56.76
    Hipparcos
    d (pc)
    17.62
    Hipparcos
    m_v (mag)
    6.59
    Hipparcos
    B-V (mag)
    0.749
    Hipparcos
    T_eff (K)
    5540 +/- 75
    Santos et al. 2000
    M_v (mag)
    5.36
    -
    L (L_sol)
    0.66
    -
    log(g) (CGS)
    4.70 +/- 0.20
    Santos et al. 2000
    M_1 (M_sol)
    0.9
    Geneva models, Schaerer et al. 1993
    log(R'HK)
    -4.27
    Coralie
    P_rot (d)
    12.6
    Noyes et al. 1984
    Vsini (km/s)
    5.5
    Coravel
    Age (Gyr)
    0.8
    Donahue 1993
    [Fe/H]
    0.10 +/- 0.08
    Santos et al. 2000

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    stephane.udry@obs.unige.ch