High-precision astrometry and the modelling of stellar spectra

被引：0
|
作者：
Gustafsson, B
机构：
来源：
ASTRONOMICAL AND ASTROPHYSICAL OBJECTIVES OF SUB-MILLIARCSECOND OPTICAL ASTROMETRY | 1995年 / 166期
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The impact of high-precision astrometry on modelling of stellar spectra and determination of fundamental stellar parameters for single stars is discussed. It is found to be considerable, but improvements in the understanding of stellar atmospheres, and in particular of the physical background of luminosity (i.e., surface-gravity) criteria will be needed in order to match the possibilities of stellar parallaxes with accuracies on the order of a few percents or better.
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页码：143 / 148
页数：6
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