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  WASP-5b: A dense, very-hot Jupiter
  Last update: October 12 2008

 
 
  • "WASP-5b: a dense, very hot Jupiter transiting a 12th-mag Southern-hemisphere star"
    D.R. Anderson, M. Gillon, C. Hellier, P.F.L. Maxted, F. Pepe, D. Queloz, D.M. Wilson, A. Collier Cameron, B. Smalley, T.A. Lister, S.J. Bentley, A. Blecha, D.J. Christian, B. Enoch, L. Hebb, K. Horne, J. Irwin, Y.C. Joshi, S.R. Kane, M. Marmier, M. Mayor, N.R. Parley, D.L. Pollacco, F. Pont, R. Ryans, D. Ségransan, I. Skillen, R.A. Street, S. Udry, R.G. West, P.J. Wheatley, 2008
    MNRAS 387, L4 (ADS) --> Transit light curve & RV orbit


    •          
     
     
     
    WASP-5 discovery lightcurves obtained
    with two different superWASP South cameras.
    Larger image
             
     
     
    Top: La Silla Euler Swiss telescope lightcurve
    Bottom: Faulkes telescope south lightcurve
    Larger image
     
    WASP-5 radial-velocity data obtained with CORALIE
    Top: RVs versus transit phase and fitted orbit
    Middle: RV Residuals versus transit phase
    Bottom: Bisecteur spans verus transit phase.
    Larger image


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

    Object
    Period
    [days]
    T_trans
    [JD - 2400000]
    Eccentricity
    V
    [km/s]
    Omega
    [deg]
    K1
    [m/s]
    a
    [AU]
    N
    WASP-5b
    1.6284296
    +0.0000048/
    -0.0000037
    54375.62466
    +0.00026/
    -0.00025
    0.0 (fixed)
    20.0105
    +0.0031/
    -0.0034
    0.0 (fixed)
    277.8
    +8.5/
    -7.8
    0.02683
    +0.00088/
    -0.00075
    11


  • Other parameters (from Anderson et al. 2008):

    Planet mass
    [M_Jup]
    1.58 +0.13 /-0.08
    Planet radius
    [R_Jup]
    1.090 +0.094 /-0.058
    Planet density
    [rho_Jup]
    1.22 +0.19 /-0.24
    Planet surface gravity (log scale)
    [CGS]
    3.484 +0.043 /-0.062
    Planet equ. temperature
    [K]
    1753 +51 /-36
    Orbital inclination
    [deg]
    >85.0
    Impact parameter
    -
    <0.46
    Transit duration
    [d]
    0.0979 +0.00025 /- 0.0011


  • Stellar properties:

    Parameter
    Value
    Reference
    Sp. Type
    G4V
    Anderson et al. 2008
    m_v [mag]
    12.3
    Anderson et al. 2008
    Distance [pc]
    300 +/- 50
    Anderson et al. 2008
    T_eff [K]
    5883
    Anderson et al. 2008
    log(g) [CGS]
    4.403 +0.039 /-0.048
    Anderson et al. 2008
    M_1 [M_Sun]
    0.972 +0.099 /-0.079
    Anderson et al. 2008
    [M/H]
    0.0 +/- 0.2
    Anderson et al. 2008
    R [R_Sun]
    1.026 +0.073 /- 0.044
    Anderson et al. 2008
    Vsini [km/s]
    3.4 +/- 0.7
    Anderson et al. 2008


  • Links:
  • superWASP home page

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    stephane.udry@obs.unige.ch