RR LYRAE VARIABLE-STARS - PULSATIONAL CONSTRAINTS RELEVANT TO THE OOSTERHOFF CONTROVERSY

被引：0
|
作者：
BONO, G
CAPUTO, F
CASTELLANI, V
MARCONI, M
机构：
[1] IST ASTROFIS SPAZIALE,I-00044 FRASCATI,ITALY
[2] UNIV PISA,DIPARTIMENTO FIS,I-56100 PISA,ITALY
来源：
ASTROPHYSICAL JOURNAL | 1995年 / 448卷 / 02期
关键词：
GLOBULAR CLUSTERS; INDIVIDUAL; (M3; M15); STARS; EVOLUTION; HORIZONTAL-BRANCH; OSCILLATIONS; VARIABLES; OTHER;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A solution to the old Oosterhoff controversy is proposed on the basis of a new theoretical pulsational scenario concerning RR Lyrae cluster variables (Bone and coworkers). We show that the observed constancy of the lowest pulsation period in both Oosterhoff type I and Oosterhoff type II prototypes (M3, M15) can be easily reproduced only by assuming the canonical evolutionary horizontal-branch luminosity levels of these Galactic globular clusters and therefore by rejecting the Sandage period-shift effect (SPSE).
引用
收藏
页码：L115 / L117
页数：3
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