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What we can learn from eclipsing binaries in large surveys: The case of EA Catalina systems

Papageorgiou, A. and Christopoulou, P.-E. and Catelan, M. and Drake, A. J. and Djorgovski, S. G. (2020) What we can learn from eclipsing binaries in large surveys: The case of EA Catalina systems. Contributions of the Astronomical Observatory Skalnaté Pleso, 50 (4). pp. 774-778. ISSN 1335-1842. doi:10.31577/caosp.2020.50.4.774.

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With the recent availability of large-scale multi-epoch photometric datasets, we were able to study EBs en masse. Large samples are useful to determine not only statistical properties but for finding strange and curious systems that no one had ever studied before, binaries with peculiarities that may reveal physical significance. We present an updated and more detailed catalog of 4680 Northern EAs in the Catalina Sky Survey (CSS). This work includes, new systems, revised period determination and ephemerides, system morphology classification based on machine learning techniques, computation of principal physical parameters with the EBAI (Eclipsing Binary via Artificial Intelligence) and detection of eclipse timing variations. We identify several groups of interesting systems including those with low mass K and M dwarfs, systems with longterm modulation of the maximum brightness, systems with longterm period modulation, potential triple systems and systems with magnetic activity.

Item Type:Article
Related URLs:
URLURL TypeDescription
Papageorgiou, A.0000-0002-3039-9257
Catelan, M.0000-0001-6003-8877
Djorgovski, S. G.0000-0002-0603-3087
Additional Information:© 2020 Slovak Academy of Sciences. This paper was presented at the conference "Universe of Binaries, Binaries in the Universe" held in Telč, Czech Republic, September 7-11, 2019. A.P. and M.C. gratefully acknowledge the support provided by Fondecyt through grants #3160782 and #1171273. Additional support for this project is provided by the Ministry for the Economy, Development, and Tourism's Millennium Science Initiative through grant IC 120009, awarded to the Millennium Institute of Astrophysics (MAS); and by Proyecto Basal AFB-170002.
Group:Astronomy Department
Funding AgencyGrant Number
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)3160782
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)1171273
Iniciativa Científica Milenio del Ministerio de Economía, Fomento y TurismoIC120009
Subject Keywords:large surveys - eclipsing binaries - data analysis
Issue or Number:4
Record Number:CaltechAUTHORS:20201119-131350410
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106737
Deposited By: Tony Diaz
Deposited On:19 Nov 2020 22:37
Last Modified:16 Nov 2021 18:56

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