Doubly eclipsing systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00539339" target="_blank" >RIV/68378271:_____/19:00539339 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/19:10408389
Result on the web
<a href="https://doi.org/10.1051/0004-6361/201936328" target="_blank" >https://doi.org/10.1051/0004-6361/201936328</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201936328" target="_blank" >10.1051/0004-6361/201936328</a>
Alternative languages
Result language
angličtina
Original language name
Doubly eclipsing systems
Original language description
We analysed photometric data for eclipsing binaries provided by the OGLE survey and we focused on the LMC fields. We found a large number of new doubly eclipsing systems (our discoveries are three times more numerous than the previously known cases in this dataset). In order to prove relative motion of the binaries about a common centre of mass, we made use of the fact that OGLE photometry covers several years. With a typical orbital period of days for the observed binaries, we sought eclipse time variations (ETVs) on the timescale comparable to a decade (this is the same method used for an archetype of the doubly eclipsing system, namely V994 Her). In the cases where we were able to detect the ETV period, the difference between the inner and outer periods in the quadruple system is large enough. This allows us to interpret ETVs primarily as the light-time effect, thus providing an interesting constraint on masses of the binaries.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy & Astrophysics
ISSN
0004-6361
e-ISSN
—
Volume of the periodical
630
Issue of the periodical within the volume
Oct
Country of publishing house
FR - FRANCE
Number of pages
14
Pages from-to
1-14
UT code for WoS article
000516617400001
EID of the result in the Scopus database
2-s2.0-85073228041