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  A 5.7 Jupiter-mass planet on an Earth-like orbit around HD 28185


  Last update: March the 5th 2005

 
 
 
  • "The CORALIE survey for southern extra-solar planets VI: New long period giant planets around HD 28185 and HD 213240"
    N.C. Santos, M. Mayor, D. Naef, F. Pepe, D. Queloz, S. Udry, M. Burnet, 2001
    A&A 379, 999 (ADS)
  • April 4th 2001 ESO Press Release

    • Larger image (373 kb)


  • Orbital solution (from Santos 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)
    HD 28185
    383 +/- 2
    51863 +/- 26
    0.07 +/- 0.04
    50.251 +/- 0.007
    351 +/- 25
    0.161 +/- 0.011
    5.7
    1.03
    40
    10.0


  • Stellar properties:

    Parameter
    Value
    Reference
    Sp. Type
    G5V
    Hipparcos
    pi (mas)
    25.28
    Hipparcos
    d (pc)
    39.56
    Hipparcos
    m_v (mag)
    7.80
    Hipparcos
    B-V (mag)
    0.75
    Hipparcos
    T_eff (K)
    5705
    Santos et al. 2001
    M_v (mag)
    4.81
    -
    L (L_sol)
    1.02
    -
    log(g) (CGS)
    4.59
    Santos et al. 2001
    M_1 (M_sol)
    0.99
    Geneva models, Schaerer et al. 1993
    log(R'HK)
    -4.82
    Strassmeier et al. 2000
    P_rot (d)
    30
    Noyes et al. 1984
    Vsini (km/s)
    2.54
    Coravel
    Age (Gyr)
    2.9
    Donahue 1993
    [Fe/H]
    0.24
    Santos et al. 2001

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    stephane.udry@obs.unige.ch