Illumination in binaries

被引：17

作者：

Hameury, JM ^{[1
]}

Ritter, H ^{[1
]}

机构：

[1] MAX PLANCK INST ASTROPHYS, D-85740 GARCHING, GERMANY

来源：

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1997年 / 123卷 / 02期

关键词：

accretion; accretion discs; stars; binaries; close; X-rays; methods; numerical;

D O I：

10.1051/aas:1997160

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We give a simple, but accurate method that can be used to account for illumination in compact binary systems which have a low-mass companion, even if spherically symmetric illumination of the secondary star (not necessarily on the main sequence) is not assumed. This is done by introducing a multiplicative factor Phi in the Stefan-Boltzmann surface boundary condition, which accounts for the blocking of the intrinsic secondary flux by X-ray heating of the photospheric layers. Numerical fits and tables for Phi are given for unperturbed effective temperatures in the range 2500 - 5600 K and log g in the range 1.0 - 5.0.

引用

页码：273 / 277

页数：5

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