An alternative mathematical treatment of the modulated RR lyrae stars

J. M. Benko, M. Paparó, R. Szabó, M. Chadid, K. Kolenberg, E. Poretti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

We present a different analytical description of the Blazhko RR Lyrae stars's light curves in which we take into account both the amplitude and phase modulation directly. Its main advantages compared to the usual description are that it explains global light curve behaviours such as average brightness variation, non-linear shape of the envelope curve, nonsinusoidal frequency variation (see [1]). Its spectra show Fourier properties such as higher order side frequencies, uneven amplitudes of side peaks, larger amplitudes of higher order peaks than the lower order ones, appearing the modulation frequency itself and its harmonics. It also reduces the number of necessary parameters by a factor of 10.

Original languageEnglish
Title of host publicationStellar Pulsation
Subtitle of host publicationChallenges for Theory and Observation - Proceedings of the International Conference
Pages273-275
Number of pages3
DOIs
Publication statusPublished - Dec 1 2009
EventInternational Conference on Stellar Pulsation: Challenges for Theory and Observation - Santa Fe, NM, United States
Duration: May 31 2009Jun 5 2009

Publication series

NameAIP Conference Proceedings
Volume1170
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference on Stellar Pulsation: Challenges for Theory and Observation
CountryUnited States
CitySanta Fe, NM
Period5/31/096/5/09

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Keywords

  • Mathematical procedures
  • Pulsations
  • RR lyrae stars
  • Time series analysis

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Benko, J. M., Paparó, M., Szabó, R., Chadid, M., Kolenberg, K., & Poretti, E. (2009). An alternative mathematical treatment of the modulated RR lyrae stars. In Stellar Pulsation: Challenges for Theory and Observation - Proceedings of the International Conference (pp. 273-275). (AIP Conference Proceedings; Vol. 1170). https://doi.org/10.1063/1.3246490