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  An intermediate period planet around HD 45652
  Last update: October 12 2008

 
 
  • "ELODIE metallicity-biased search for transiting Hot Jupiters V. An intermediate-period Jovian planet orbiting HD45652"
    N. C. Santos, S. Udry, F. Bouchy, R. Da Silva, B. Loeillet, M. Mayor, C. Moutou, F. Pont, D. Queloz, S. Zucker, D. Naef, F. Pepe, D. Ségransan, I. Boisse, X. Bonfils, X. Delfosse, M. Desort, T. Forveille, G. Hébrard, A.-M. Lagrange, C. Lovis, C. Perrier, A. Vidal-Madjar, 2008
    A&A 487, 369 (ADS)

    •  
    Larger image
    HD45652 radial-velocity data.
    ToP: ELODIE (red), CORALIE (blue) and SOPHIE (pink)
    temporal velocities. The solid lines is the fitted orbital solution.
    Bottom: Residuals to the fitted orbit.


  • Orbital solution (from Santos 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 45652 b
    43.6
    +/-
    0.2
    54120.3
    +/-
    1.2
    0.38
    +/-
    0.06
    -5.117 +/- 0.006 (ELODIE)
    -5.044 +/- 0.002 (CORALIE)
    -4.999 +/- 0.002 (SOPHIE)
    273
    +/-
    12
    33.1
    +/-
    2.5
    0.47
    0.23
    44 = 14 (ELODIE) +
    18 (CORALIE) +
    12 (SOPHIE)
    8.9


  • Stellar properties:

    Parameter
    Value
    Reference
    Sp. Type
    G8-K0
    Santos et al. 2008
    pi (mas)
    27.67
    Hipparcos
    d (pc)
    36.1
    Hipparcos
    m_v (mag)
    8.1
    Hipparcos
    B-V (mag)
    0.85
    Hipparcos
    T_eff (K)
    5312 +/- 68
    Santos et al. 2008
    M_v (mag)
    5.31
    -
    L (L_sol)
    -
    -
    log(g) (CGS)
    4.32 +/- 0.21
    Santos et al. 2008
    M_1 (M_sol)
    0.83 +/- 0.05
    Santos et al. 2008
    log(R'HK)
    -4.90 +/- 0.10
    Santos et al. 2008
    P_rot (d)
    -
    -
    Vsini (km/s)
    <2.0
    Santos et al. 2008
    Age (Gyr)
    -
    -
    [Fe/H]
    0.29 +/- 0.07
    Santos et al. 2008


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    stephane.udry@obs.unige.ch