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  A Long Period Massive Planet around 14 Herculis
  Last update: October 15 2008

 
 
  • "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)
  • "CORALIE-ELODIE new planets and planetary systems. Looking for fossil traces of formation and evolution"
     S. Udry, M. Mayor, D. Queloz, 2000, in Planetary Systems in the Universe: Observation, Formation and Evolution, IAU Symp. 202, Eds. A. Penny, P. Artymowicz, A.-M. Lagrange and S. Russel ASP Conf. Ser. p.12 (ADS)
  • Confirmation: "Seven New Keck Planets Orbiting G and K Dwarfs"
     R.P.Butler, G.W. Marcy, S.S. Vogt, D.A. Fischer, G.W. Henry, G. Laughlin, 2003
     ApJ 582, 455 (ADS)
  • Announced during the "Protostars and Planets" 4th meeting, Mayor et al. 1998

    •  

    Top: Temporal ELODIE velocities and
    Keplerian+linear drift solution (black curve).
    The dashed line shows the drifting systemic velocity.
    Bottom: Residuals around the solution.
    Larger image (48 kb)


  • Orbital solution (from Naef et al. 2004):

    Object
    Period
    (days)
    T0
    (JD - 2 400 000)
    Eccentricity
    V
    (km/s)
    Omega
    (deg)
    K1
    (km/s)
    Slope
    (m/s/yr)
    m2sini
    (M_Jup)
    a
    (AU)
    N
    Residuals
    (m/s)
    14 herculis
    1796.4 +/- 8.3
    49582.0 +/- 12.4
    0.338 +/- 0.011
    -13.8226 +/- 0.0007
    (at JD=51500)
    22.58 +/- 1.98
    0.0903 +/- 0.001
    3.6 +/- 0.3
    4.74 +/- 0.06
    2.80
    119
    11.3


  • Stellar properties:

    Parameter
    Value
    Reference
    Sp. Type
    K0V
    Hipparcos
    pi (mas)
    55.11
    Hipparcos
    d (pc)
    18.15
    Hipparcos
    m_v (mag)
    6.61
    Hipparcos
    B-V (mag)
    0.877
    Hipparcos
    T_eff (K)
    5255
    Santos et al. 2003
    M_v (mag)
    5.32
    -
    L (L_sol)
    0.71
    -
    log(g) (CGS)
    4.40 +/- 0.15
    Santos et al. 2003
    M_1 (M_sol)
    0.9
    Santos et al. 2003
    log(R'HK)
    -5.07
    Butler et al. 2003
    P_rot (d)
    41
    -
    Vsini (km/s)
    <1
    ELODIE, Naef et al. 2004
    Age (Gyr)
    3.9
    -
    [Fe/H]
    0.51 +/- 0.06
    Santos et al. 2003


  • Links:

  • 14 Herculis @ OHP (english version) or 14 herculis à l'OHP (french version)

  • 14 Herculis @ exoplanets.org


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    stephane.udry@obs.unige.ch