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  A sub-saturnian planet around HD 168746

Last update: January 8th 2005
 
 
 
 
 
  • "The CORALIE survey for southern extra-solar planets VII: two short-period Saturnian companions to HD 108147 and HD 168746"
    F. Pepe, M. Mayor, F. Galland, D. Naef, D, Queloz, N.C. Santos, S. Udry, M. Burnet, 2002
    A&A 388, 632 (ADS)
  • ESO Press Release

    • Larger image (382 kb)


  • Orbital solution (from Pepe et al. 2002):

    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 168746
    6.403 +/- 0.001
    51994.7 +/- 0.5
    0.081 +/-0.029
    -25.562 +/- 0.001
    16.30 +/- 20.88
    0.027 +/- 0.001
    0.23
    0.065
    154
    9.8


    Stellar properties:

    Parameter
    Value
    Reference
    Sp. Type
    G5
    Hipparcos
    pi (mas)
    23.19
    Hipparcos
    d (pc)
    43.12
    Hipparcos
    m_v (mag)
    7.95
    Hipparcos
    B-V (mag)
    0.713
    Hipparcos
    T_eff (K)
    5610 +/- 30
    Santos et al. 2001
    M_v (mag)
    4.78
    -
    L (L_sol)
    1.10
    -
    log(g) (CGS)
    4.50 +/- 0.15
    Santos et al. 2001
    M_1 (M_sol)
    0.88 +/- 0.01
    Geneva models, Schaerer et al. 1993
    log(R'HK)
    -
    -
    P_rot (d)
    -
    -
    Vsini (km/s)
    1.0
    Coralie
    Age (Gyr)
    -
    -
    [Fe/H]
    -0.06 +/- 0.01
    Santos et al. 2001

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    stephane.udry@obs.unige.ch