The Blazhko effect in Galactic bulge fundamental ModeRR Lyrae stars

Kód výsledku v 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>

Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

The Blazhko effect in Galactic bulge fundamental ModeRR Lyrae stars

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

The Blazhko effect in Galactic bulge fundamental ModeRR Lyrae stars

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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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Počet stran výsledku

5

Strana od-do

130-134

Název nakladatele

Astronomical Society of the Pacific

Místo vydání

San Francisco

Místo konání akce

Cloudcroft

Datum konání akce

13. 10. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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