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 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:
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RA (2000) DE Designation(s)
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15 49 12.14 -35 39 03.9 GQ Lup = HBC 250
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File Summary:
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FileName Lrecl Records Explanations
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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
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Byte-by-byte Description of file: phot.dat photmid.dat
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Bytes Format Units Label Explanations
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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
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Acknowledgements:
Christopher Broeg, broeg(at)space.unibe.ch
(End) Patricia Vannier [CDS] 13-Apr-2007