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  HD 153950 b: a 2.7 M_Jup planet
  Last update: October 26 2008

 
 
  • "The HARPS search for southern extra-solar planets. XVII Six long-period giant planets around BD -17 0063, HD 20868, HD 73267, HD 131664, HD 145377 HD 153950"
    C. Moutou, M. Mayor, G. Lo Curto, S. Udry, F. Bouchy, W. Benz, C. Lovis, D. Naef, F. Pepe, D. Queloz, N.C. Santos, 2008
    A&A in press (atro-ph/0810.4662)

    •  
    Larger image
    HARPS radial-velocity data for HD 153950
    Top: Temporal velocities and fitted orbital solution.
    Middle: Residuals to the fitted orbit.
    Bottom: Phase-folded velocities and fitted orbit.


  • Orbital solution (from Moutou et al. 2008):

    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 153950 b
    499.4
    +/-
    3.6
    54502
    +/-
    4.3
    0.34
    +/-
    0.021
    33.230
    +/-
    0.001
    308.2
    +/-
    2.4
    69.15
    +/-
    1.2
    2.73
    +/-
    0.05
    1.28
    +/-
    0.01
    49
    3.9


  • Stellar properties:

    Parameter
    Value
    Reference
    Sp. Type
    F8V
    Hipparcos
    pi (mas)
    20.16 +/- 0.70
    Hipparcos
    d (pc)
    49.6 +/- 1.8
    Hipparcos
    m_v (mag)
    7.39
    Hipparcos
    B-V (mag)
    0.565
    Hipparcos
    T_eff (K)
    6076 +/- 13
    Moutou et al. 2008
    M_v (mag)
    3.91
    Moutou et al. 2008
    L (L_sol)
    2.22 +/- 0.17
    Moutou et al. 2008
    log(g) (CGS)
    4.37 +/- 0.10
    Moutou et al. 2008
    M_1 (M_sol)
    1.12 +/- 0.03
    Moutou et al. 2008
    R (R_sol)
    1.34
    Moutou et al. 2008
    log(R'HK)
    -4.89 +/- 0.03
    Moutou et al. 2008
    P_rot (d)
    14
    Moutou et al. 2008
    Vsini (km/s)
    3.0
    Moutou et al. 2008
    Age (Gyr)
    4.3 +/- 1
    Moutou et al. 2008
    [Fe/H]
    -0.01 +/- 0.01
    Moutou et al. 2008


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    stephane.udry@obs.unige.ch