Golden Ratio Sinusoidal Sequences and the Multimode Pulsation of the δ Sct Star V784 Cassiopeiae  

作　　者：JuanGarcíaEscudero 

机构地区：[1]Departamento de Fisica,Universidad de Oviedo,33007-Oviedo Spainon

出　　处：《Chinese Journal of Astronomy and Astrophysics》2004年第4期343-348,共6页中国天文和天体物理学报(英文版)

摘　　要：Non periodic ordered sequences obtained by production rules in formal grammars are applied to the analysis of the multi-periodicity of the δ-Scuti type variable star V784 Cas. An artificial light curve for V784 Cas is generated by a non deterministic derivation in a context-sensitive grammar by concatenation of two sinusoidal fragments following certain word sequences. The two basic building blocks represent temporal segments in a golden ratio and the number of long and short segments in a word are also in a golden ratio.Non periodic ordered sequences obtained by production rules in formal grammars are applied to the analysis of the multi-periodicity of the δ-Scuti type variable star V784 Cas. An artificial light curve for V784 Cas is generated by a non deterministic derivation in a context-sensitive grammar by concatenation of two sinusoidal fragments following certain word sequences. The two basic building blocks represent temporal segments in a golden ratio and the number of long and short segments in a word are also in a golden ratio.

关 键 词：stars:variables:δScuti-stars:individual:V784 Cas 

分 类 号：P144[天文地球—天体物理]