Detail publikace

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

Skarka, M. Liska, J. Sodor, A. Guggenberger, E. Dreveny, R. Barnes, T. Kolenberg, K.

Originální název

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

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

O-C DIAGRAMS; RADIAL-VELOCITIES

Autoři

Skarka, M.; Liska, J.; Sodor, A.; Guggenberger, E.; Dreveny, R.; Barnes, T.; Kolenberg, K.

Vydáno

17. 9. 2017

ISBN

978-8-3938-2799-2

Kniha

RR LYRAE 2017 CONFERENCE - REVIVAL OF THE CLASSICAL PULSATORS: FROM GALACTIC STRUCTURE TO STELLAR INTERIOR DIAGNOSTICS

Strany od

243

Strany do

247

Strany počet

5

BibTex

@inproceedings{BUT170243,
  author="Skarka, M. and Liska, J. and Sodor, A. and Guggenberger, E. and Dreveny, R. and Barnes, T. and Kolenberg, K.",
  title="On the Interpretation of the Long-Term Cyclic Period Variations in RR Lyrae Stars",
  booktitle="RR LYRAE 2017 CONFERENCE - REVIVAL OF THE CLASSICAL PULSATORS: FROM GALACTIC STRUCTURE TO STELLAR INTERIOR DIAGNOSTICS",
  year="2017",
  pages="243--247",
  isbn="978-8-3938-2799-2"
}