@Article{OliveiraFPJRDCC:2020:EAClCa,
author = "Oliveira, Aysses do Carmo and Ferreira Lopes, Carlos Eduardo and
Papageorgiou, Athanasios and Jablonski, Francisco Jos{\'e} and
Rodrigues, Cl{\'a}udia Vilega and Drake, A. J. and Cross, N. J.
G. and Catelan, M{\'a}rcio",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Pontificia
Universidad Catolica de Chile} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {California Institute of Technology} and
{Scottish Universities Physics Alliance (SUPA)} and {Pontificia
Universidad Catolica de Chile}",
title = "Recovering variable stars in large surveys: EAupAlgol-type class
in the Catalina Survey",
journal = "Monthly Notices of the Royal Astronomical Society",
year = "2020",
volume = "498",
number = "2",
pages = "2833--2844",
month = "Oct.",
keywords = "methods: data analysis – techniques: photometric – astronomical
data bases: miscellaneous – stars: late-type – stars: low-mass –
stars: variables: general.",
abstract = "The discovery and characterization of Algol eclipsing binaries
(EAs) provide an opportunity to contribute for a better picture of
the structure and evolution of low-mass stars. However, the
cadence of most current photometric surveys hinders the detection
of EAs since the separation between observations is usually larger
than the eclipse(s) duration and hence few measurements are found
at the eclipses. Even when those objects are detected as variable,
their periods can be missed if an appropriate oversampling factor
is not used in the search tools. In this paper, we apply this
approach to find the periods of stars catalogued in the Catalina
Real-Time Transient Survey (CRTS) as EAs having unknown period
(EAup). As a result, the periods of \∼56 per cent of them
were determined. Eight objects were identified as low-mass binary
systems and modelled with the Wilson \& Devinney synthesis code
combined with a Markov chain Monte Carlo optimization procedure.
The computed masses and radii are in agreement with theoretical
models and show no evidence of inflated radii. This paper is the
first of a series aiming to identify suspected binary systems in
large surveys.",
doi = "10.1093/mnras/staa2518",
url = "http://dx.doi.org/10.1093/mnras/staa2518",
issn = "0035-8711 and 1365-2966",
language = "en",
targetfile = "carmo_recovering.pdf",
urlaccessdate = "26 abr. 2024"
}