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  A Massive Planet around 70 Vir
(Confirmation)


  Last update: January the 21st 2004

 
 
 
  • 70 Vir b discovery paper: "A Planetary Companion to 70 Virginis"
    G.W. Marcy, R.P. Butler, 1996, ApJ 464, L147     -- ADS

  • 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: with residuals of 6.1 m/s, this solution is to date the most precise ELODIE published orbit



    •  

    Top: Phase-folded velocities and orbital solution for 70 Vir 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=0.92 M_Sol
    a
    (AU)
    N
    Residuals
    (m/s)
    70 Vir b
    116.689 +/- 0.011
    48990.39 +/- 0.33
    0.397 +/- 0.005
    4.951 +/- 0.001
    359.40 +/- 0.92
    0.3141 +/- 0.0020
    6.56 +/- 0.04
    0.456
    35
    6.1


  • Links:
  • 70vir @ exoplanets.org
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    stephane.udry@obs.unige.ch