PHOTOMETRY OF OPEN CLUSTERS .3. HR-4684 AND HD-106103 IN COMA BERENICES

被引：0

作者：

PENA, JH

PENICHE, R

MUJICA, R

IBANOGLU, C

ERTAN, AY

TUMER, O

TUNCA, Z

EVREN, S

机构：

[1] INST NACL ASTROFIS OPT & ELECTR,PUEBLA 72000,MEXICO

[2] EGE UNIV OBSERV,DEPT ASTRON,BORNOVA 31500,TURKEY

来源：

REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA | 1993年 / 25卷 / 02期

关键词：

GALAXY OPEN CLUSTERS AND ASSOCIATIONS; STARS VARIABLES DELTA-SCU; TECHNIQUES PHOTOMETRIC;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Differential photoelectric photometry of the Delta Scuti stars HR 4684 and HD 106103 is presented. Membership of these stars to the cluster is established through a compilation from the literature of uvby-beta photometry of 69 stars in the direction of Coma Berenices. Reddening and distance are determined to be of E(b-y) = 0.002 and 81.75 pc, respectively. An age for the cluster of 5 X 10(8) yr is derived by comparison with theoretical isochrones. Values of log T(eff) and log g are determined for each member star to the cluster. No significant physical difference is found between the variable stars and others with the same physical characteristics. Determination of several Ap stars is established.

引用

页码：129 / 141

页数：13

共 42 条

[1] SPECTRAL TYPES IN COMA BERENICES CLUSTER [J].