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J/A+A/468/1039      VRIJK photometry of GQ Lup               (Broeg+, 2007)
Rotational period of GQ Lup.
    Broeg C. , Schmidt T. , Guenther E., Gaedke A., Bedalov A., Neuhauser R.,
    Walter F.M.
   <Astron. Astrophys. 468, 1039 (2007)>
   =2007A&A...468.1039B
ADC_Keywords: Stars, pre-main sequence ; Photometry, UBVRI

Keywords: stars: rotation - stars: fundamental parameters - stars: starspots


Abstract:
    We wanted to determine the rotation parameters of GQ Lup A, thereby
    constraining the evolutionary history of the GQ Lup system.
    We have undertaken a photometric monitoring campaign on GQ Lup A
    consisting of two epochs spaced one year apart. We also searched the
    photometric archives to enlarge the data set.

Description:
    The files contain the differential magnitudes of GQ Lup A obtained in
    the filters J, K, I, R (epoch I, 2005) and the J, K, I, V filter
    observations of epoch II (2006). See article for details.
Objects:
    ---------------------------------------------
       RA   (2000)   DE       Designation(s)
    ---------------------------------------------
    15 49 12.14  -35 39 03.9  GQ Lup = HBC 250
    ---------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
phot.dat          35      313   Differential magnitudes, epochs I and II
photmid.dat       35      112   Time-averaged differential magnitudes,
                             epochs I and II


Byte-by-byte Description of file: phot.dat photmid.dat

   Bytes Format Units   Label     Explanations

       1  I1    ---     Epoch     [1/2] Epoch code (1=2005 or 2=2006)
       3  A1    ---     Filter    [IJKRV] Band
   5- 17  F13.5 d       JD        Julian Date of observation
  20- 27  F8.5  mag     dmag      Differential magnitude in Filter
  30- 35  F6.4  mag     e_dmag    Error of differential magnitude


Acknowledgements:
    Christopher Broeg, broeg(at)space.unibe.ch
(End)                                        Patricia Vannier [CDS]  13-Apr-2007