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  A 9.7 Jupiter-mass planet orbiting HD 141937


  Last update: January the 8th 2005

 
 
 
  • "The CORALIE survey for southern extra-solar planets VIII. The very low-mass companions of HD 141937, HD 162020, HD 168443, HD 202206: Brown dwarfs or "superplanets"
    S. Udry, M. Mayor, D. Naef, F. Pepe, D. Queloz, N.C. Santos, M. Burnet, 2002
    A&A 390, 267 (ADS)
  • April 4th 2001 ESO Press Release


    • Larger image (376 kb)


  • Orbital solution (from Udry 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 141937
    653.22 +/- 1.21
    51847.38 +/- 1.97
    0.41 +/- 0.01
    -2.915 +/- 0.002
    187.72 +/- 0.80
    0.2345 +/- 0.0064
    9.7
    1.52
    81
    8.7


  • Stellar properties:

    Parameter
    Value
    Reference
    Sp. Type
    G2V
    Hipparcos
    pi (mas)
    29.89
    Hipparcos
    d (pc)
    33.46
    Hipparcos
    m_v (mag)
    7.25
    Hipparcos
    B-V (mag)
    0.628
    Hipparcos
    T_eff (K)
    5925
    Santos et al. 2001
    M_v (mag)
    4.63
    -
    L (L_sol)
    1.17
    -
    log(g) (CGS)
    4.62
    Santos et al. 2001
    M_1 (M_sol)
    1.1
    Geneva models, Schaerer et al. 1993
    log(R'HK)
    -4.65
    Coralie
    P_rot (d)
    13.25
    Noyes et al. 1984
    Vsini (km/s)
    2.1
    Coralie
    Age (Gyr)
    1.6
    Donahue 1993
    [Fe/H]
    0.11
    Santos et al. 2001

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    stephane.udry@obs.unige.ch