A study of accretion discs around rapidly rotating neutron stars in general relativity and its applications to four low mass X-ray binaries

被引：12

作者：

Bhattacharyya, S ^{[1
]}

机构：

[1] Indian Inst Sci, Joint Astron Program, Bangalore 560012, Karnataka, India

[2] Indian Inst Astrophys, Bangalore 560034, Karnataka, India

来源：

ASTRONOMY & ASTROPHYSICS | 2002年 / 383卷 / 02期

关键词：

accretion; accretion discs; relativity; stars : neutron; stars : rotation; X-rays : binaries;

D O I：

10.1051/0004-6361:20011758

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the accretion disc temperature profiles, disc luminosities and boundary layer luminosities for rapidly rotating neutron stars considering the full effect of general relativity. We compare the theoretical values of these quantities with their values inferred from EXOSAT data for four low mass X-ray binary sources: XB 1820-30, GX 17+2, GX 9+1 and GX 349+2 and constrain the values of several properties of these sources. According to our calculations, the neutron stars in GX 9+1 and GX 349+2 are rapidly rotating and stiffer equations of state are unfavoured.

引用

收藏

页码：524 / 532

页数：9

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