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  A Long-Period Planet around 47 UMa
(Confirmation)


  Last update: January the 21st 2004

 
 
 
  • 47 UMa b discovery paper: "A Planet Orbiting 47 Ursae Majoris"
    R.P. Butler, G.W. Marcy, 1996, ApJ 464, L153     -- ADS

  • 47 UMa c discovery paper: "A Second Planet Orbiting 47 Ursae Majoris"
    D.A. Fischer, G.W. Marcy, R.P. Butler, G. Laughlin, S.S. Vogt, 2002, ApJ 564, 1028     -- ADS

  • 47 UMa b confirmation paper:"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

  • Remark: we find no clear evidence of the signature of the second planet (47 UMa c) in the ELODIE data



    •  

    Top: Temporal velocities and orbital solution for 47 UMa b.
    Bottom: Residuals around the solution.
    Larger image (388 kb)


  • Elodie orbital solution as published in Naef et al. 2004:

    Object
    Period
    (days)
    T0
    (JD - 2 400 000)
    Eccentricity
    V
    (km/s)
    Omega
    (deg)
    K1
    (km/s)
    m2sini
    (M_Jup)
    with M1=1.03 M_Sol
    a
    (AU)
    N
    Residuals
    (m/s)
    47 UMa b
    1100.8 +/- 7.2
    52915 +/- 64
    0.097 +/- 0.039
    11.220 +/- 0.001
    299.7 +/- 20.3
    0.0536 +/- 0.0019
    2.76 +/- 0.10
    2.11
    44
    7.4


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  • 47uma @ exoplanets.org
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    stephane.udry@obs.unige.ch