Spotted eclipsing binary KIC 7023917 with δ-Scuti pulsations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F24%3A00585504" target="_blank" >RIV/67985815:_____/24:00585504 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0353187" target="_blank" >https://hdl.handle.net/11104/0353187</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.31577/caosp.2024.54.2.194" target="_blank" >10.31577/caosp.2024.54.2.194</a>
Alternative languages
Result language
angličtina
Original language name
Spotted eclipsing binary KIC 7023917 with δ-Scuti pulsations
Original language description
Eclipsing binary KIC 7023917 is one of nearly three thousand other binaries in the well-known Kepler Eclipsing Binary Catalog. However, it has some uncommon features. We focused on this system because we detected fast anti-correlated changes on the O-C diagram which could suggest the presence of apsidal motion. However, these changes are very fast for apsidal motion and the orbit of this binary is circular. Detailed analysis of the Kepler and TESS light curves reveals deformation of the light curve by short-periodic pulsations and the O'Connell effect caused by stellar spot(s). Here, we present our initial study of this system and a possible explanation of the observed O-C diagram.
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
<a href="/en/project/LTT20015" target="_blank" >LTT20015: PLATOSpec ground based support of space missions PLATO and TESS - new Czech spectrograph in collaboration with European Southern Observatory</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Contributions of the Astronomical Observatory Skalnaté Pleso
ISSN
1335-1842
e-ISSN
1336-0337
Volume of the periodical
54
Issue of the periodical within the volume
2
Country of publishing house
SK - SLOVAKIA
Number of pages
7
Pages from-to
194-197
UT code for WoS article
001178776600011
EID of the result in the Scopus database
2-s2.0-85192974495