On the determination of absolute magnitude zero-points from Hipparcos parallaxes

被引：30
|
作者：
Koen, C [1 ]
Laney, D [1 ]
机构：
[1] S African Astron Observ, ZA-7935 Cape Town, South Africa
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1998年 / 301卷 / 02期
关键词：
stars; distances;
D O I：
10.1046/j.1365-8711.1998.02066.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The period-luminosity (PL) relation zero-point determination from Hipparcos trigonometric parallaxes of Cepheids is contentious. It is shown that the method used by Feast & Catchpole is equivalent to a standard minimization of sum of squares, and that it is free of Lutz-Kelker bias. The same technique is applied to RR Lyrae and field HB star data, the PL relation being replaced by a luminosity-metallicity relation.
引用
收藏
页码：582 / 584
页数：3
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