Old isolated accreting neutron stars: The diffuse X-ray emission from the Galactic center

被引：12

作者：

Zane, S ^{[1
]}

Turolla, R ^{[1
]}

Treves, A ^{[1
]}

机构：

[1] UNIV PADUA, DEPT PHYS, I-35131 PADUA, ITALY

来源：

ASTROPHYSICAL JOURNAL | 1996年 / 471卷 / 01期

关键词：

accretion; accretion disks; Galaxy; center; stars; neutron; X-rays;

D O I：

10.1086/177966

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The contribution of weakly magnetized (B similar to 10(9) G) neutron stars accreting the interstellar medium to the diffuse X-ray emission observed in the Galactic center is investigated, It is shown that, under rather conservative assumptions about the neutron stars and gas distributions, the accretion luminosity can account for a sizable fraction, possibly most, of the detected X-ray flux in the 2.5-7 keV band. In particular, model results are compared with Granat data and show a general agreement in both the Bur energy and radial distributions.

引用

页码：248 / 253

页数：6

共 48 条

[1] HIGH-RESOLUTION IMAGES OF THE GALACTIC-CENTER [J].