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  HD 209458: A Transiting Hot Jupiter


  Last update: January the 7th 2005

 
 
 
  • "Detection of Planetary Transits Across a Sun-like Star"
    D. Charbonneau, T.M Brown, D.W. Latham, M. Mayor, 2000
    ApJ 529, L45 (ADS)
    See the light curves     here
  • "The Spectroscopic Orbit of the Planetary Companion Transiting HD 209458"
    T. Mazeh, D. Naef, G. Torres, D.W. Latham, M. Mayor, J.L. Beuzit, T.M. Brown, L. Buchhave, M. Burnet, B.W. Carney, D. Charbonneau, G.A. Drukier, J.B. Laird, F. Pepe, C. Perrier, D. Queloz, N.C. Santos, J.P. Sivan, S. Udry, S. Zucker, 2000
    ApJ 532, L55 (ADS)
    The Mazeh et al. orbital solution is here. The planet parameters published in Mazeh et al. are here
  • "Detection of a spectroscopic transit by the planet orbiting the star HD 209458"
    D. Queloz, A. Eggenberger, M. Mayor, C. Perrier, J.L. Beuzit, D. Naef, J.P. Sivan, S. Udry, 2000
    A&A 359, L13 (ADS)
  • "The ELODIE survey for northern extra-solar planets III: Three planetary candidates detected with ELODIE"
    D. Naef, M. Mayor, J.L. Beuzit, C. Perrier, D. Queloz, J.P. Sivan, S. Udry, 2004
    A&A 414, 351 (ADS)
    The updated orbital solution is here
  • Most precise values for computing the transit times:

    P = 3.5247542 +/- 0.0000004 (d)
    T_trans = 2 452 618.66774 +/- 0.000007 (JD)
    • (Based on space and ground-based photometric measurements of transits, Wittenmyer et al. 2003 in "Extrasolar Planets Today & Tomorrow", IAP XIXth colloquium)

     
  • The G Dwarf HIRES-ELODIE Planet Search:
  • Teams members:
      CfA: Dave Latham, Guillermo Torres
      Geneva: Michel Mayor, Dominique Naef, Didier Queloz, Stephane Udry
      Grenoble: Christian Perrier-Bellet, Jean-Luc Beuzit
      OHP: Jean-Pierre Sivan
      Tel Aviv: Tsevi Mazeh, Gordon Drukier, Shay Zucker
      HAO: Tim Brown, David Charbonneau

    • Spectrographs/Photometers/Telescopes:


    • Light curves of the photometric transits (from Charbonneau et al. 2000):


      Raw photometric measurements




      Binned (5 min) photometric data


    • The Spectroscopic Orbit of the Planetary Companion Transiting HD 209458 (from Mazeh et al. 2000):



    • Orbital solution (as published in Mazeh et al. 2000):

      Object
      Period
      (days)
      T_trans
      (JD - 2 400 000)
      Eccentricity
      V
      (km/s)
      Omega
      (deg)
      K1
      (km/s)
      m2sini
      (M_Jup)
      a
      (AU)
      N
      Residuals
      (m/s)
      HD 209458 b
      3.52433 +/- 0.00027
      51430.8238 +/- 0.0029
      0 (fixed)
      -14.7652 +/- 0.0016
      0 (fixed)
      0.0859 +/- 0.0020
      0.685
      0.047
      11 (Hires) +
      31 (Elodie) +
      108 (Coralie)
      13.8 (Hires)
      17.6 (Elodie)
      25.1 (Coralie)


    • Planetary parameters (as published in Mazeh et al. 2000):

      Inclination
      (deg)
      Mass
      (M_Jup)
      Radius
      (R_Jup)
      Density
      (g/cm^3)
      86.1 +/- 1.6
      0.69 +/- 0.05
      1.40 +/- 0.17
      0.31 +/- 0.07


    • Updated orbital solution (Naef et al. 2004):

      a: Phase-folded ELODIE velocities for HD 209458 b.
      b: Phase-folded CORALIE velocities for HD 209458 b.
      c: Residuals around the solution.
      Larger image (256 kb)


      Object
      Period
      (days)
      T0
      (JD - 2 400 000)
      Eccentricity
      V
      (km/s)
      Omega
      (deg)
      K1
      (km/s)
      m2sini
      (M_Jup)
      with M1=1.15 M_Sol
      a
      (AU)
      N
      Residuals
      (m/s)
      HD 209458 b
      3.5246 +/- 0.0001
      52617.758 +/- 0.021
      0 (fixed)
      -14.741 +/- 0.002
      0 (fixed)
      0.0851 +/- 0.0010
      0.699 +/- 0.007
      0.048
      46 (Elodie) +
      141 (Coralie)
      13.7 (Elodie)
      15.2 (Coralie)


    • Stellar properties:

      Parameter
      Value
      Reference
      Sp. Type
      F8
      Hipparcos
      pi (mas)
      21.24
      Hipparcos
      d (pc)
      47.1
      Hipparcos
      m_v (mag)
      7.65
      Hipparcos
      B-V (mag)
      0.594
      Hipparcos
      T_eff (K)
      6000 +/- 50
      Mazeh et al. 2000
      M_v (mag)
      4.29
      -
      L (L_sol)
      1.61
      -
      log(g) (CGS)
      4.25 +/- 0.2
      Mazeh et al. 2000
      M_1 (M_sol)
      1.1 +/- 0.1
      Mazeh et al. 2000
      log(R'HK)
      -
      -
      P_rot (d)
      14.4 +/- 2.1
      Mazeh et al. 2000
      Vsini (km/s)
      4.1 +/- 0.6
      Mazeh et al. 2000
      Age (Gyr)
      4-6
      Mazeh et al. 2000
      [Fe/H]
      0.0 +/- 0.02
      Mazeh et al. 2002


    • Independently discovered by Henry et al.


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      stephane.udry@obs.unige.ch