On the Interpretation of the Long-Term Cyclic Period Variations in RR Lyrae Stars

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F18%3A00499851" target="_blank" >RIV/67985815:_____/18:00499851 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26620/17:PU139981
Result on the web
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DOI - Digital Object Identifier
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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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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
The RR Lyrae 2017 Conference. Revival of the Classical Pulsators: from Galactic Structure to Stellar Interior Diagnostics
ISBN
9788393827992
ISSN
2545-1022
e-ISSN
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Number of pages
5
Pages from-to
"June (2018)"
Publisher name
Polskie Towarzystwo Astronomiczne
Place of publication
Warszawa
Event location
Niepołomice
Event date
Sep 17, 2017
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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