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  A planet around the metal-rich star HD 43691
  Last update: November 25, 2007

 
 
 
 
 
 
  • "ELODIE metallicity-biased search for transiting Hot Jupiters. IV. Intermediate period planets orbiting the stars HD 43691 and HD 132406"
    R. Da Silva, S. Udry, F. Bouchy, C. Moutou, M. Mayor, J.-L. Beuzit, X. Bonfils, X. Delfosse, M. Desort, T. Forveille, F. Galland, G. Hébrard, A.-M. Lagrange, B. Loeillet, C. Lovis, F. Pepe, C. Perrier, F. Pont, D. Queloz, N.C. Santos, D. Ségransan, J.-P. Sivan, A. Vidal-Madjar, S. Zucker, 2007,
    A&A 473, 323 (ADS)
  • Announced during the "Extreme Solar Systems" conference, Santorini, June 26 2007

    •  

    Larger image

    Larger image
    Top: ELODIE and SOPHIE temporal radial velocities for HD 43691.
    Middle: Residuals to the fitted orbit. Bottom: Phase-folded orbit.


  • Orbital solution (from Da Silva et al. 2007):

    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 43691 b
    36.96
    +/- 0.02
    54046.6
    +/- 0.5
    0.14
    +/- 0.02
    -29.000
    +/- 0.003
    290
    +/- 5
    124
    +/- 2
    2.49
    0.24
    36 (ELODIE: 22
    SOPHIE: 14)
    10.0 (ELODIE: 17.5
    SOPHIE: 9.0)


  • System parameters:

    Parameter
    Value
    Reference
    Sp. Type
    G0IV
    Da Silva et al. 2007
    pi (mas)
    10.73 +/- 1.16
    Hipparcos
    d (pc)
    93
    Hipparcos
    m_v (mag)
    8.03
    Hipparcos
    B-V (mag)
    0.596
    Hipparcos
    T_eff (K)
    6200 +/- 40
    Da Silva et al. 2007
    M_v (mag)
    3.18
    -
    L (L_sol)
    -
    -
    log(g) (CGS)
    4.28 +/- 0.13
    Da Silva et al. 2007
    M_1 (M_sol)
    1.38 +/- 0.05
    Da Silva et al. 2007
    log(R'HK)
    -
    -
    P_rot (d)
    -
    -
    Vsini (km/s)
    4.7
    Da Silva et al. 2007
    Age (Gyr)
    2--3.6
    Da Silva et al. 2007
    [Fe/H]
    0.28 +/- 0.05
    Da Silva et al. 2007


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    stephane.udry@obs.unige.ch