Analysis of the possible Blazhko-effect Cepheid V473 Lyrae
arXiv:1309.2108 · doi:10.1002/asna.201211975
Abstract
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.
5 pages, 6 figures, accepted for publication in AN. Proceedings for the 6th Workshop of Young Researchers in Astronomy and Astrophysics
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- Investigating light curve modulation via kernel smoothing. II. New additional modes in single-mode OGLE classical Cepheids
- Investigating Light Curve Modulation via Kernel Smoothing. I. Application to 53 fundamental mode and first-overtone Cepheids in the LMC
- The VELOCE modulation zoo III. Detecting additional pulsation modes in optical spectra of classical Cepheids using semi-partial distance correlation periodograms