MIKULÁŠEK, Zdeněk. Phenomenological modelling of eclipsing system light curves. ASTRONOMY & ASTROPHYSICS. LES ULIS CEDEX A: EDP SCIENCES S A, 2015, vol. 584, december, p. "nestrankovano", 13 pp. ISSN 1432-0746. Available from: https://dx.doi.org/10.1051/0004-6361/201425244.
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Basic information
Original name Phenomenological modelling of eclipsing system light curves
Name in Czech Fenomenologické modelování světelných křivek zákrytových soustav
Authors MIKULÁŠEK, Zdeněk (203 Czech Republic, guarantor, belonging to the institution).
Edition ASTRONOMY & ASTROPHYSICS, LES ULIS CEDEX A, EDP SCIENCES S A, 2015, 1432-0746.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher France
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 5.185
RIV identification code RIV/00216224:14310/15:00081637
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1051/0004-6361/201425244
UT WoS 000366936800008
Keywords in English binaries: eclipsing; methods: miscellaneous; planets and satellites: general
Tags AKR, rivok, XY Boo
Tags International impact, Reviewed
Changed by Changed by: Ing. Andrea Mikešková, učo 137293. Changed: 8/4/2016 09:26.
Abstract
Context. The observed light curves of most eclipsing binaries and stars with transiting planets can be described well and interpreted by current advanced physical models that also allow for determining many of the physical parameters of eclipsing systems. However, for several common practical tasks, there is no need to know the detailed physics of a variable star, but only the shapes of their light curves or other phase curves. Aims. We present a set of phenomenological models for the light curves of eclipsing systems. Methods. We express the observed light curves of eclipsing binaries and stars, which are transited by their exoplanets orbiting in circular trajectories, by a sum of special, analytical, few-parameter functions that enable fitting their light curves with an accuracy of better than 1%. The proposed set of phenomenological models of eclipsing variable light curves were then tested on several real systems. For XY Bootis, we also give a detailed comparison of the results obtained using our phenomenological modelling with those found using available physical models. Results. We demonstrate that the proposed phenomenological models of transiting exoplanet and eclipsing binary light curves applied to ground-based photometric observations yield results compatible with those obtained by applying more complex physical models. Conclusions. The suggested phenomenological modelling appears useful for solving a number of common tasks in the field of eclipsing variable research.
Abstract (in Czech)
Context. The observed light curves of most eclipsing binaries and stars with transiting planets can be described well and interpreted by current advanced physical models that also allow for determining many of the physical parameters of eclipsing systems. However, for several common practical tasks, there is no need to know the detailed physics of a variable star, but only the shapes of their light curves or other phase curves. Aims. We present a set of phenomenological models for the light curves of eclipsing systems. Methods. We express the observed light curves of eclipsing binaries and stars, which are transited by their exoplanets orbiting in circular trajectories, by a sum of special, analytical, few-parameter functions that enable fitting their light curves with an accuracy of better than 1%. The proposed set of phenomenological models of eclipsing variable light curves were then tested on several real systems. For XY Bootis, we also give a detailed comparison of the results obtained using our phenomenological modelling with those found using available physical models. Results. We demonstrate that the proposed phenomenological models of transiting exoplanet and eclipsing binary light curves applied to ground-based photometric observations yield results compatible with those obtained by applying more complex physical models. Conclusions. The suggested phenomenological modelling appears useful for solving a number of common tasks in the field of eclipsing variable research.
Links
GA13-10589S, research and development projectName: Ztráta hmoty horkých hmotných hvězd
Investor: Czech Science Foundation
LH12175, research and development projectName: Studium vybraných téměř kontaktních dvojhvězd (Acronym: NCBS)
Investor: Ministry of Education, Youth and Sports of the CR
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