Informace o publikaci

Period analysis of a Blazhko star V0346 Draconis

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LIŠKA Jiří SKARKA Marek

Rok publikování 2015
Druh Článek v odborném periodiku
Časopis / Zdroj Open European Journal on Variable Stars
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www http://var.astro.cz/oejv/oejv.php?oejv=173
Obor Astronomie a nebeská mechanika, astrofyzika
Klíčová slova photometry;RR Lyrae;CCD;Blazhko effect;variable star
Popis Period analysis of an RRab star V0346 Dra based on photometric measurements from NSVS and DASCH projects is presented. We confirm light curve modulation known from literature and estimate modulation period for the first time. NSVS measurements spanning one year allowed us to determine the length of the Blazhko cycle as 101(2) d. This value is close to 103.65(2)-day period estimated from photographic measurements from the DASCH project which have a lower quality but 92-year long timebase. Blazhko effect causes well apparent phase and amplitude modulation easily visible in O-C diagram and in maximum-O-C dependency.
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