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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 56 6 List of studied stars
table4.dat 143 1161 Light curves of observed eclipsing binaries
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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
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Bytes Format Units Label Explanations
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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)
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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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
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Acknowledgements:
Jakub Jurysek, jakubjurysek(at)astronomie.cz
(End) Patricia Vannier [CDS] 20-Sep-2017