The Blazhko effect in Galactic bulge fundamental ModeRR Lyrae stars

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00640481" target="_blank" >RIV/67985815:_____/20:00640481 - isvavai.cz</a>
Result on the web
<a href="https://www.aspbooks.org/publications/529/130.pdf" target="_blank" >https://www.aspbooks.org/publications/529/130.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The Blazhko effect in Galactic bulge fundamental ModeRR Lyrae stars
Original language description
The Blazhko effect is a common feature of the fundamental mode RR Lyrae stars. The large number of these stars in the Galactic bulge observed by the Optical Gravitational Lensing Experiment (OGLE) represents a great opportunity to study the Blazhko effect in a statistical manner. We investigated modulation periods, envelope shapes, and amplitudes in connection with pulsation periods, amplitudes, and shapes of the light curves in a sample of more than 3000 modulated stars. We found no simple monotonic dependence between any two parameters. There are only systematic limits. It seems that the modulation amplitude is suppressed towards longer pulsation periods. We identified 6 morphological types of the modulation and two populations of stars with different length of the modulation periods (48 and 186 days). We found that 25 % of the stars show multiple modulation. In this brief report, we also summarize other important results.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
RR Lyrae/Cepheid 2019: Frontiers of Classical Pulsators
ISBN
978-1-58381-945-6
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
130-134
Publisher name
Astronomical Society of the Pacific
Place of publication
San Francisco
Event location
Cloudcroft
Event date
Oct 13, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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