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  OGLE-TR-56 b: a transiting planet
(Confirmation)

  Last update: April the 16th 2007

 
 
 
  • An extrasolar planet that transits the disk of its parent star
    M. Konacki et al. 2003
    Nature 421, 507 (ADS) --> RV orbit
  • New Data and Improved Parameters for the Transiting Planet OGLE-TR-56b
    G. Torres et al. 2004
    ApJ 609, 1071 (ADS) --> Updated orbit and light curve
  • Doppler follow-up of OGLE transiting companions in the Galactic bulge
    F. Bouchy et al. 2005
    A&A 431, 1105 (ADS) --> Confirmation paper, independent RV orbit
  • High resolution spectroscopy of stars with transiting planets. The cases of OGLE-TR-10, 56, 111, 113, and TrES-1
    N.C. Santos et al. 2006
    A&A 450, 825 (ADS) --> Improved stellar atmospheric parameters
  • On the Age of Stars Harboring Transiting Planets
    C. Melo et al. 2006
    A&A 460, 251 (ADS) --> Constraints on age and activity
  • ESO Large Programme 666 on OGLE transits: I. Accurate radius of the planets OGLE-TR-10b and OGLE-TR-56b with VLT deconvolution photometry
    F. Pont et al. 2006
    A&A 465, 1069 (ADS) --> Improved photometric data and light curve


    •  
    FLAMES-UVES (open dots) and HARPS (filled dots) RV data for OGLE-TR-56.
    From Bouchy et al. 2005. Larger image (202 kb)
     


    Top: FORS1 R-band (red filled dots) and V-band (blue open dots) photometric
    data and fitted transit curves for OGLE-TR-56. Bottom: Residuals to the fitted
    curves (R-band rms: 0.9 mmag, V-band rms: 0.9 mmag). From Pont et al. 2006.
    Larger image (393 kb)


  • OGLE-TR-56 orbital solution (from Bouchy et al. 2005):

    Object
    Period
    (days)
    T0
    (JD - 2 400 000)
    Eccentricity
    V
    (km/s)
    Omega
    (deg)
    K1
    (km/s)
    a
    (AU)
    N
    Residuals
    (m/s)
    OGLE-TR-56 b
    1.2119189
    52075.1046
    0 (fixed)
    -48.324 +/- 0.018
    0 (fixed)
    0.212 +/- 0.022
    0.023
    13
    51


  • Other parameters (from Pont et al. 2006):         -- Light curve from Pont et al. 2006
            -- Velocities from Bouchy et al. 2005
            -- Stellar atmospheric parameters from Santos et al. 2006

    Transit impact parameter
    0.80
    Radius ratio
    0.101
    Planet mass
    1.29 +/- 0.12 (M_Jup)
    Planet radius
    1.30 +/- 0.05 (R_Jup)
    Planet density
    0.73 +0.23/-0.18 (g cm^-3)


  • Stellar properties:

    Parameter
    OGLE-TR-56
    Reference
    m_I (mag)
    15.30
    OGLE
    V-I (mag)
    1.26
    OGLE
    B-V (mag)
    0.589
    Melo et al. 2006
    T_eff (K)
    6119 +/- 62
    Santos et al. 2006
    log(g) (CGS)
    4.21 +/- 0.19
    Santos et al. 2006
    M_1 (M_sol)
    1.17 +/- 0.04
    Pont et al. 2006
    R (R_sol)
    1.32 +/- 0.06
    Pont et al. 2006
    log(R'HK)
    -5.358
    Melo et al. 2006
    P_rot (d)
    26.3
    Noyes et al. 1984
    Vsini (km/s)
    3.2 +/- 1.0
    Melo et al. 2006
    Age (Gyr)
    >2
    Melo et al. 2006
    [Fe/H]
    0.25 +/- 0.08
    Santos et al. 2006


  • Links:
  • OGLE-TR-56 @ OGLEIII
  • M. Konacki's OGLE-TR-56 page

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    stephane.udry@obs.unige.ch