A-TYPE STARS - PHYSICAL PARAMETERS FROM UVBY AND H-BETA PHOTOMETRY

被引：0

作者：

FIGUERAS, F

TORRA, J

JORDI, C

机构：

来源：

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1991年 / 87卷 / 02期

关键词：

PHOTOMETRY; STARS LUMINOSITIES OF; STARS TEMPERATURE OF;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

uvby H-beta photometry has been obtained for a sample of 93 selected main sequence A stars. Our purpose was to determine accurate effective temperatures, surface gravities, and absolute magnitudes for an individual determination of ages and parallaxes, which have to be included in a more extensive work analyzing the kinematic properties of A V stars. Several calibrations and methods to determine the above mentioned parameters have been reviewed, allowing the design of a new algorithm for their determination. The results obtained using this procedure were tested in a previous paper using uvby H-beta data from the Hauck and Mermilliod catalogue, and comparing the resulting temperatures, surface gravities and absolute magnitudes with empirical determinations of these parameters.

引用

页码：319 / 334

页数：16

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