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  A planetary system around HD 82943


  Last update: March the 5th 2005

 
 
 
  • "The CORALIE survey for southern extra-solar planets. XII. Orbital solutions for 16 extra-solar planets detected with CORALIE"
    M. Mayor, S. Udry, D. Naef, F. Pepe, D. Queloz, N.C. Santos, M. Burnet, 2004
    A&A 415, 391 (ADS)
  • May 9th 2001 ESO Press Release: Evidence for planet engulfment

  • April 4th 2001 ESO Press Release: 2nd planet detected

  • May 4th 2000 ESO Press Release: 1st planet detected



    • Larger image (44 kb)


  • Orbital solution (from Mayor et al. 2003):

    Object
    Period
    (days)
    T0
    (JD - 2 400 000)
    Eccentricity
    V
    (km/s)
    Omega
    (deg)
    K1
    (m/s)
    m2sini
    (M_Jup)
    a
    (AU)
    N
    Residuals
    (m/s)
    HD 82943 b
    435.1 +/- 1.4
    51758 +/- 13
    0.18 +/- 0.04
    8.144 +/- 0.001
    237 +/- 13
    45.8 +/- 1.0
    1.84
    1.18
    142
    6.8
    HD 82943 c
    219.4 +/- 0.2
    52284 +/- 1
    0.38 +/- 0.01
    "
    124 +/- 3
    61.5 +/- 1.7
    1.85
    0.75
    "
    "


  • Stellar properties:

    Parameter
    Value
    Reference
    Sp. Type
    G0
    Hipparcos
    pi (mas)
    36.42
    Hipparcos
    d (pc)
    27.46
    Hipparcos
    m_v (mag)
    6.54
    Hipparcos
    B-V (mag)
    0.623
    Hipparcos
    T_eff (K)
    6028 +/- 19
    Santos et al. 2001, 2003
    M_v (mag)
    4.35
    -
    L (L_sol)
    1.50
    -
    log(g) (CGS)
    4.46 +/- 0.02
    Santos et al. 2001, 2003
    M_1 (M_sol)
    1.15
    Mayor et al. 2003
    log(R'HK)
    -4.82
    Coralie, Mayor et al. 2003
    P_rot (d)
    18.0
    Mayor et al. 2003
    Vsini (km/s)
    1.7
    Coralie, Mayor et al. 2003
    Age (Gyr)
    2.9
    Mayor et al. 2003
    [Fe/H]
    0.29 +/- 0.02
    Santos et al. 2001, 2003


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    stephane.udry@obs.unige.ch