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  The Jupiter-mass planet orbiting HD 223084:
a planet in a binary

  Last update: July the 26th 2002

 
 
 
  • Announced during the "Scientific Frontiers in Research on Extrasolar Planets" conference, Washington, June 2002

    •  
     

    Top: Velocities corrected for the fitted linear drift versus time
    Bottom: Residuals around the fitted solution
    Larger image (373 kb)


  • Orbital solution:

    Object
    Periode
    (days)
    T0
    (HJD)
    Eccentricity
    V
    (km/s)
    Omega
    (deg)
    K1
    (km/s)
    Drift slope
    (m/s/yr)
    m2sini
    (M_Jup)
    a
    (AU)
    N
    Residuals
    (m/s)
    HD 223084
    104.090 +/- 0.087
    51912.4 +/- 1.4
    0.48 +/- 0.03
    2.297 +/- 0.002
    at HJD=2 451 500
    199 +/- 8
    0.057 +/- 0.003
    -0.310 +/- 0.003
    1.21
    0.44
    32
    13.7


  • Stellar properties:

    Parameter
    Value
    Reference
    Sp. Type
    G0
    Hipparcos
    pi (mas)
    25.92
    Hipparcos
    d (pc)
    38.6
    Hipparcos
    m_v (mag)
    7.23
    Hipparcos
    B-V (mag)
    0.551
    Hipparcos
    T_eff (K)
    6075
    Flower 1996
    M_v (mag)
    4.30
    -
    L (L_sol)
    1.56
    -
    log(g) (CGS)
    -
    -
    M_1 (M_sol)
    1.05
    -
    log(R'HK)
    -4.64
    Coralie
    P_rot (d)
    7.8
    Noyes et al. 1984
    Vsini (km/s)
    4.60
    Coralie
    Age (Gyr)
    1.5
    Donahue 1993
    [Fe/H]
    -0.20
    Coralie


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    stephane.udry@obs.unige.ch