uvby FCAPT photometry of the metallic-lined stars 60 Tau and HR 1528 and the magnetic CP stars HR 8216 and HR 8770

被引:9
作者
Adelman, SJ [1 ]
机构
[1] The Citadel, Dept Phys, Charleston, SC 29409 USA
关键词
stars : chemically peculiar; stars : individual : 60 Tau; stars : individual : HR 1528; stars : individual : HR 8216; stars : individual : HR 8770;
D O I
10.1051/0004-6361:20030097
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Differential Stromgren uvby observations from the Four College Automated Photoelectric Telescope (FCAPT) are presented for the metallic-lined stars 60 Tau and HR 1528 and the magnetic Chemically Peculiar stars HR 8216 and HR 8770. The first star, which is a delta Scuti variable, was found not to change its mean magnitudes. HR 1528 is best described as constant. A decade of photometry of HR 8216 shows that its b and y values have changed by -0.016 and -0.010 mag, respectively, over this time and now can be considered a photometric variable. For HR 8770 a period of 5.3923 days is derived with the photometric variability being generally in phase. The light curves also suggest possible surface abundance inhomogeneities.
引用
收藏
页码:357 / 360
页数:4
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