Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5290
Title: Triple-star candidates among the Kepler binaries
Authors: Rappaport, S.
Deck, K.
Levine, A.
Borkovits, T.
Carter, J.
El Mellah, I.
Sanchis-Ojeda, R.
Kalomeni, Belinda
Kalomeni, Belinda
Izmir Institute of Technology. Physics
Keywords: Binaries
Stars
Kepler binaries
Celestial mechanics
Eclipsing
Issue Date: May-2013
Publisher: IOP Publishing Ltd.
Source: Rappaport, S., Deck, K., Levine, A., Borkovits, T., Carter, J., El Mellah, I., Sanchis-Ojeda, R., and Kalomeni, B. (2013). Triple-star candidates among the Kepler binaries. Astrophysical Journal, 768(1). doi:10.1088/0004-637X/768/1/33
Abstract: We present the results of a search through the photometric database of Kepler eclipsing binaries looking for evidence of hierarchical triple-star systems. The presence of a third star orbiting the binary can be inferred from eclipse timing variations. We apply a simple algorithm in an automated determination of the eclipse times for all 2157 binaries. The "calculated" eclipse times, based on a constant period model, are subtracted from those observed. The resulting O-C (observed minus calculated times) curves are then visually inspected for periodicities in order to find triple-star candidates. After eliminating false positives due to the beat frequency between the ∼1/2 hr Kepler cadence and the binary period, 39 candidate triple systems were identified. The periodic O-C curves for these candidates were then fit for contributions from both the classical Roemer delay and so-called physical delay, in an attempt to extract a number of the system parameters of the triple. We discuss the limitations of the information that can be inferred from these O-C curves without further supplemental input, e.g., ground-based spectroscopy. Based on the limited range of orbital periods for the triple-star systems to which this search is sensitive, we can extrapolate to estimate that at least 20% of all close binaries have tertiary companions. © 2013. The American Astronomical Society. All rights reserved..
URI: http://doi.org/10.1088/0004-637X/768/1/33
http://hdl.handle.net/11147/5290
ISSN: 0004-637X
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
5290.pdfMakale3.03 MBAdobe PDFThumbnail
View/Open
Show full item record

CORE Recommender

SCOPUSTM   
Citations

91
checked on Jul 24, 2021

WEB OF SCIENCETM
Citations

97
checked on Jul 24, 2021

Page view(s)

14
checked on Jul 30, 2021

Download(s)

8
checked on Jul 30, 2021

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.