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J/A+A/544/L3    Photometry of the double eclipsing binary CzeV343 (Cagas+, 2012)

Discovery of a double eclipsing binary with periods near a 3:2 ratio. Cagas P., Pejcha O. <Astron. Astrophys. 544, L3 (2012)> =2012A&A...544L...3C
ADC_Keywords: Binaries, eclipsing ; Photometry Keywords: binaries: close - binaries: eclipsing Abstract: We present the discovery of a possible new quadruple system composed of two unresolved eclipsing binaries (EBs), CzeV343 (V∼13.5mag). We obtained photometric observations of CzeV343 that completely cover the two orbital periods and we successfully model the light curves as the sum of two detached EBs. The two orbital periods, 1.20937 and 0.80693-days, are within 0.1% of a 3:2 ratio. We speculate that this might be the result of Kozai cycles and tidal friction evolution of quadruple systems. Description: Differential photometric measurements of CzeV343 obtained with 0.25m Newtonian telescope with G4-16000 and G2-3200 CCD cameras are presented. The photometry is mostly without any photometric filter, although some measurements in V and I were obtained as well. For each measurement, we give Julian date, differential magnitude with respect to a comparison star, photometric error and modeled magnitude. Objects: -------------------------------------------------------- RA (2000) DE Designation(s) -------------------------------------------------------- 05 48 24.008 +30 57 03.64 CzeV343 = GSC 02405-01886 -------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table.dat 46 833 Photometric measurements of CzeV343
Byte-by-byte Description of file: table.dat
Bytes Format Units Label Explanations
1- 13 F13.5 d BJD Barycentric Julian Date in barycentric dynamical time 17- 22 F6.4 mag dmag Differential magnitude 25- 30 F6.4 mag e_dmag Magnitude uncertainty 32- 33 I2 --- DN Dataset number 36 I1 --- Filter [0/2] Photometric filter (1) 40- 46 F7.5 mag Mod Modeled magnitude
Note (1): Filter code as follows: 0 = no filter (sensitive from 350 to 1000nm, maximum at 550nm) 1 = Cousins I band 2 = Johnson V band
Acknowledgements: Ondrej Pejcha, pejcha(at)
(End) Ondrej Pejcha [Ohio State Univ., USA], Patricia Vannier [CDS] 21-Jun-2012
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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