SCALING OF OBSERVABLE PROPERTIES IN ROTATING STARS

被引:3
作者
Castaneda, D. [1 ]
Deupree, R. G.
机构
[1] St Marys Univ, Inst Computat Astrophys, Halifax, NS B3H 3C3, Canada
关键词
stars: atmospheres; stars: fundamental parameters; stars: rotation; A-TYPE STARS; SPECTRAL-ENERGY-DISTRIBUTION; MODEL ATMOSPHERES; ALPHA OPHIUCHI; STELLAR EVOLUTION; VEGA; TEMPERATURE; CONSISTENT; PARAMETERS; VELOCITIES;
D O I
10.1088/0004-637X/794/1/13
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The spectral energy distribution as a function of inclination is computed using two-dimensional rotating stellar models and NLTE plane parallel stellar atmospheres. These models cover the range from 1.875M(circle dot) to 3.0M(circle dot). The deduced effective temperature is determined by B-V computed from the spectral energy distribution, and the deduced luminosity is computed as the integral of the spectral energy distribution over all frequencies, assuming the distance and reddening are known. These deduced quantities are obtained from the observed spectral energy distribution assuming the objects are spherically symmetric, and thus the results are dependent on the inclination. Previous work has shown that the surface properties between two rotating stellar models with the same surface shape scale, and this is also true for the deduced effective temperature and luminosity over this limited mass range.
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页数:7
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