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J/ApJ/727/102      On the frequency of Jupiter analogs      (Wittenmyer+, 2011)
On the frequency of Jupiter analogs.
    Wittenmyer R.A., Tinney C.G., O'Toole S.J., Jones H.R.A., Butler R.P.,
    Carter B.D., Bailey J.
   <Astrophys. J., 727, 102 (2011)>
   =2011ApJ...727..102W
ADC_Keywords: Planets ; Stars, double and multiple

Keywords: planetary systems - techniques: radial velocities


Abstract:
    The Anglo-Australian Planet Search has now accumulated 12 years of
    radial-velocity data with long-term instrumental precision better than
    3m/s. In this paper, we expand on earlier simulation work, to probe
    the frequency of near-circular, long-period gas-giant planets residing
    at orbital distances of 3-6AU -the so-called Jupiter analogs. We
    present the first comprehensive analysis of the frequency of these
    objects based on radial-velocity data. We find that 3.3% of stars in
    our sample host Jupiter analogs; detailed, star-by-star simulations
    show that no more than 37% of stars host a giant planet between 3 and
    6AU.

Description:
    The Anglo-Australian Planet Search (AAPS) target list contains 254
    stars, of which 180 have been observed for more than 8 years. We
    further restrict the sample to those stars which have been observed
    more than 30 times (N=123) which are summarized in table 1. Of the 123
    AAPS program targets, 25 are known to host at least one planet (plus
    one brown dwarf host: HD 164427). The planetary parameters are listed
    in Table 3.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        22      123   Summary of radial-velocity data
table2.dat        46      492  *Summary of detection limits
table3.dat       151       27   Substellar companions from this sample

Notes on table2.dat: The detection limits were computed using the method
  of Wittenmyer et al. (2006AJ....132..177W). See section 3.1 for explanations.


See also:
  III/185 : Search for Jupiter-Mass Companions (Walker+, 1995)
  J/A+A/535/A55  : 4 stars with long-period planets (Dumusque+, 2011)
  J/A+A/534/A58  : HD20794, HD85512, HD192310 HARPS RVs (Pepe+, 2011)
  J/A+A/528/A112 : Radial velocities of HD 10180 (Lovis+, 2011)
  J/ApJ/708/1366 : Radial velocities for 61 Vir (Vogt+, 2010)
  J/A+A/523/A88  : A Jupiter-mass companion around HD 109246 (Boisse+, 2010)
  J/ApJS/182/97  : Radial velocities of multi-planet systems (Wittenmyer+, 2009)
  J/A+A/496/513  : RV of 6 stars with long-period giant planets (Moutou+, 2009)
  J/A+A/415/391  : The CORALIE survey for extrasolar planets. XII (Mayor+, 2004)
  J/A+A/388/632  : Radial-velocity of HD 108147 and HD 168746 (Pepe+, 2002)
  J/A+A/379/999  : The CORALIE survey for extrasolar planets. VI (Santos+ 2001)
  J/A+A/356/590  : The CORALIE survey for extrasolar planets II (Udry+, 2000)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units   Label     Explanations

   1-  2  A2    ---     ---       [HD]
   4- 10  A7    ---     HD        Star name
  12- 14  I3    ---     N         Number of observations
  16- 19  F4.1  m/s     rms       RMS velocity
  20- 22  A3    ---     f_rms     [abc, ] type of rms (1)

Note (1): Flag as follows:
   a = Residuals after removal of known planet(s) orbit.
   b = Residuals to a linear fit.
   c = Residuals to a quadratic fit.


Byte-by-byte Description of file: table2.dat

   Bytes Format Units   Label     Explanations

   1-  2  A2    ---     ---       [HD]
   4- 10  A7    ---     HD        Star name
  12- 13  I2    %       RRate     Recovery rate
  15- 19  F5.1  m/s     e0.0      Mean K velocity amplitude detectable at e=0.0
  21- 24  F4.1  m/s     e_e0.0    Uncertainty in e0.0
  26- 30  F5.1  m/s     e0.1      Mean K velocity amplitude detectable at e=0.1
  32- 35  F4.1  m/s     e_e0.1    Uncertainty in e0.1
  37- 41  F5.1  m/s     e0.2      Mean K velocity amplitude detectable at e=0.2
  43- 46  F4.1  m/s     e_e0.2    Uncertainty in e0.2


Byte-by-byte Description of file: table3.dat

   Bytes Format Units   Label     Explanations

   1- 11  A11   ---     Name      Planet designation
      13  A1    ---     n_Name    [J] J: Jupiter analog ((P≳8yr and e<0.2)
  15- 24  F10.5 d       Per       Period (P)
  26- 35  F10.6 d       e_Per     Per uncertainty
  37- 43  F7.1  d       T0        Periastron passage T0 (JD-2400000)
  45- 51  F7.3  d       e_T0      T0 uncertainty
  53- 57  F5.3  ---     e         Eccentricity (e)
  59- 63  F5.3  ---     e_e       Eccentricity uncertainty
  65- 69  F5.1  deg     omega     Periastron argument ω
  71- 75  F5.1  deg     e_omega   ? omega uncertainty
  77- 82  F6.1  m/s     K         The velocity amplitude K
  84- 88  F5.2  m/s     e_K       K uncertainty
  90- 95  F6.3  Mjup    Msini     Minimum mass of the planet
  97-101  F5.3  Mjup    e_Msini   Msini uncertainty
 103-108  F6.4  AU      a         Semimajor axis
 110-115  F6.4  AU      e_a       ? a uncertainty
 117-131  A15   ---     Aut       Discovery author's name
 133-151  A19   ---     BibCode   Discovery reference


History:
    From electronic version of the journal
(End)                 Greg Schwarz [AAS], Emmanuelle Perret [CDS]    29-Aug-2012