On the Interpretation of the Long-Term Cyclic Period Variations in RR Lyrae Stars
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F17%3APU139981" target="_blank" >RIV/00216305:26620/17:PU139981 - isvavai.cz</a>
Alternative codes found
RIV/67985815:_____/18:00499851
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
On the Interpretation of the Long-Term Cyclic Period Variations in RR Lyrae Stars
Original language description
Many RR Lyrae stars show long-term variations of their pulsation period, some of them in a cyclic way. Such behaviour can be attributed to the light-travel time effect (LTTE) caused by an unseen companion. Solutions of the LTTE often suggest very eccentric orbits and minimal mass of the companion on the order of several solar masses, thus, in the black hole range. We discuss the possibility of the occurrence of the RR Lyrae-black hole pairs, and on the case of Z CVn, demonstrate that the LTTE hypothesis can be false in some of the binary candidates.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
RR LYRAE 2017 CONFERENCE - REVIVAL OF THE CLASSICAL PULSATORS: FROM GALACTIC STRUCTURE TO STELLAR INTERIOR DIAGNOSTICS
ISBN
978-8-3938-2799-2
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
243-247
Publisher name
Neuveden
Place of publication
Neuveden
Event location
Niepolomice
Event date
Sep 17, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000540757500037