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Stability in period and amplitude: The high-amplitude delta Scuti star YZ Bootis
Zhou, AY
2006
Source PublicationASTROPHYSICS AND SPACE SCIENCE
Volume301Issue:1-4Pages:11-20
AbstractThe variability of period and amplitude of the high-amplitude delta Scuti star YZ Boo was thoroughly investigated based on a comprehensive analysis of new time-series photometry and other available data. Fourier analysis, O-Cdiagram, and wavelet analysis establish a clear picture for the star's time-dependent behavior in period and amplitude. We detected no additional frequencies being intrinsic to the variable or caused by amplitude/frequency modulation confirming its mono-periodicity. We reveal the pulsation of YZ Boo is quite stable in both period and amplitude over the past 50 years. Short-term variations at cycle level including "anomalous cycles" are present clearly, while long-term variations in period and amplitude at annual base are insignificant. However, we note an increment from 2000 to 2003 in both period and amplitude. In 2000 the amplitude reached the lowest. This is indicated by the Fourier and wavelet results. In the long term, O-Cfits and wavelet analysis agree with the Fourier results that the period change of YZ Boo is still inconclusive.
KeywordStars : Variable : Delta Scuti Stars Stars : Oscillations Stars : Individual : Yz Bootis
DOI10.1007/s10509-006-4964-y
Indexed BySCI
Language英语
WOS IDWOS:000235246200003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8943
Collection射电天文研究部
AffiliationChinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Zhou, AY. Stability in period and amplitude: The high-amplitude delta Scuti star YZ Bootis[J]. ASTROPHYSICS AND SPACE SCIENCE,2006,301(1-4):11-20.
APA Zhou, AY.(2006).Stability in period and amplitude: The high-amplitude delta Scuti star YZ Bootis.ASTROPHYSICS AND SPACE SCIENCE,301(1-4),11-20.
MLA Zhou, AY."Stability in period and amplitude: The high-amplitude delta Scuti star YZ Bootis".ASTROPHYSICS AND SPACE SCIENCE 301.1-4(2006):11-20.
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