Analysis of the possible Blazhko-effect Cepheid V473 Lyrae
Corresponding Author
L. Molnár
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege Miklós üt 15–17, H-1121 Budapest, Hungary
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege Miklós üt 15–17, H-1121 Budapest, HungarySearch for more papers by this authorL. Szabados
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege Miklós üt 15–17, H-1121 Budapest, Hungary
Search for more papers by this authorR. J. Dukes Jr.
Department of Physics and Astronomy, The College of Charleston, Charleston, SC 29424, USA
Search for more papers by this authorÁ. Győrffy
Department of Astronomy, Eötvös University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
Search for more papers by this authorR. Szabó
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege Miklós üt 15–17, H-1121 Budapest, Hungary
Search for more papers by this authorCorresponding Author
L. Molnár
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege Miklós üt 15–17, H-1121 Budapest, Hungary
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege Miklós üt 15–17, H-1121 Budapest, HungarySearch for more papers by this authorL. Szabados
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege Miklós üt 15–17, H-1121 Budapest, Hungary
Search for more papers by this authorR. J. Dukes Jr.
Department of Physics and Astronomy, The College of Charleston, Charleston, SC 29424, USA
Search for more papers by this authorÁ. Győrffy
Department of Astronomy, Eötvös University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
Search for more papers by this authorR. Szabó
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege Miklós üt 15–17, H-1121 Budapest, Hungary
Search for more papers by this authorAbstract
V473 Lyrae is a peculiar Galactic Cepheid, showing strong amplitude modulation that resembles the Blazhko-effect observed in RR Lyrae stars. We collected data spanning several modulation cycles and started a detailed analysis. The first results indicate that the star shows both amplitude and phase modulations with an average period of 1204 days, but both the cycle length and the strength of the modulation are subjected to considerable variations. A possible quintuplet component in the Fourier spectrum and additional period changes were also detected. (© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
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