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

页码：582 / 584

页数：3

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