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J/A+A/609/A46       Light curves 0f 6 MC eclipsing binaries     (Jurysek+, 2018)

New inclination changing eclipsing binaries in the Magellanic Clouds. Jurysek J., Zasche P., Wolf M., Vrastil J., Vokrouhlicky D., Skarka M., Liska J., Janik J., Zejda M., Kurfurst P., Paunzen E. <Astron. Astrophys. 609, A46 (2018)> =2018A&A...609A..46J (SIMBAD/NED BibCode)
ADC_Keywords: Magellanic Clouds ; Binaries, eclipsing ; Photometry Keywords: binaries: eclipsing - stars: early-type - stars: fundamental parameters - Magellanic Clouds Abstract: We aim to present a novel method to determine compact triples using publicly available photometric data from large surveys. Here we apply it to eclipsing binaries (EBs) in Magellanic Clouds from OGLE III database. Our tool consists of identifying the cases where the orbital plane of EB evolves in accord with expectations from the interaction with a third star. We analyzed light curves (LCs) of 26121 LMC and 6138 SMC EBs with the goal to identify those for which the orbital inclination varies in time. Archival LCs of the selected systems, when complemented by our own observations with Danish 1.54-m telescope, were thoroughly analyzed using the PHOEBE program. This provided physical parameters of components of each system. Time dependence of the EB inclination was described using the theory of orbital-plane precession. By observing the parameter-dependence of the precession rate, we were able to constrain the third companion mass and its orbital period around EB. Description: The presented table includes light curves of six selected systems thoroughly analyzed in the paper. The lightcurves were obtained by differential photometry with the use of Danish 1.54-m telescope at the La Silla Observatory in Chile. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file stars.dat 56 6 List of studied stars table4.dat 143 1161 Light curves of observed eclipsing binaries
See also: J/AcA/61/103 : VI light curves of LMC eclipsing binaries (Graczyk+, 2011) J/AcA/63/323 : OGLE-III SMC eclipsing binary stars (Pawlak+, 2013) Byte-by-byte Description of file: stars.dat
Bytes Format Units Label Explanations
1- 18 A18 --- Star Star name 21- 22 I2 h RAh Right ascension (J2000) 24- 25 I2 min RAm Right ascension (J2000) 27- 31 F5.2 s RAs Right ascension (J2000) 33 A1 --- DE- Declination sign (J2000) 34- 35 I2 deg DEd Declination (J2000) 37- 38 I2 arcmin DEm Declination (J2000) 40- 43 F4.1 arcsec DEs Declination (J2000) 45- 56 F12.10 d Per Period P1 (from table 7 and 8)
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 13 F13.5 d HJD1 ? Heliocentric Julian Date, OGLE-LMC-ECL-1350 16- 23 F8.5 mag dmag1 ? Diff magnitude in Johnson I, OGLE-LMC-ECL-1350 26- 38 F13.5 d HJD2 ? Heliocentric Julian Date, OGLE-LMC-ECL-13150 41- 47 F7.5 mag dmag2 ? Diff magnitude in Johnson I, OGLE-LMC-ECL-13150 50- 62 F13.5 d HJD3 ? Heliocentric Julian Date, OGLE-LMC-ECL-16023 65- 71 F7.5 mag dmag3 ? Diff magnitude in Johnson I, OGLE-LMC-ECL-16023 74- 86 F13.5 d HJD4 ? Heliocentric Julian Date, OGLE-LMC-ECL-18240 89- 95 F7.5 mag dmag4 ? Diff magnitude in Johnson I, OGLE-LMC-ECL-18240 98-110 F13.5 d HJD5 ? Heliocentric Julian Date, OGLE-LMC-ECL-23148 113-119 F7.5 mag dmag5 ? Diff magnitude in Johnson I, OGLE-LMC-ECL-23148 122-134 F13.5 d HJD6 ? Heliocentric Julian Date, OGLE-SMC-ECL-1532 137-143 F7.5 mag dmag6 ? Diff magnitude in Johnson R, OGLE-SMC-ECL-1532
Acknowledgements: Jakub Jurysek, jakubjurysek(at)
(End) Patricia Vannier [CDS] 20-Sep-2017
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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