NEUTRINO-HEATED STARS AND BROAD-LINE EMISSION FROM ACTIVE GALACTIC NUCLEI

被引：11

作者：

MACDONALD, J

STANEV, T

BIERMANN, PL

机构：

[1] UNIV DELAWARE,BARTOL RES INST,NEWARK,DE 19716

[2] MAX PLANCK INST RADIOASTRON,W-5300 BONN 1,GERMANY

来源：

ASTROPHYSICAL JOURNAL | 1991年 / 378卷 / 01期

关键词：

GALAXIES; NUCLEI; SEYFERT; NEUTRINOS; QUASARS; STARS; INTERIORS; WINDS;

D O I：

10.1086/170404

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Nonthermal radiation from active galactic nuclei indicates the presence of highly relativistic particles. The interaction of these high-energy particles with matter and photons gives rise to a flux of high-energy neutrinos. In this paper, we investigate the influence of the expected high neutrino fluxes on the structure and evolution of single, main-sequence stars. Sequences of models of neutrino-heated stars in thermal equilibrium are presented for masses 0.25, 0.5, 0.8, and 1.0 M.. In addition, a set of evolutionary sequences for mass 0.5 M. have been computed for different assumed values for the incident neutrino energy flux. We find that winds driven by the heating due to high-energy particles and hard electromagnetic radiation of the outer layers of neutrino-bloated stars may satisfy the requirements of the model of Kazanas for the broadline emission clouds in active galactic nuclei.

引用

页码：30 / 38

页数：9

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