ASCA observation of the rapid burster in quiescence

被引：27

作者：

Asai, K

Dotani, T

Kunieda, H

Kawai, N

机构：

[1] NAGOYA UNIV, FAC SCI, DEPT PHYS, CHIKUSA KU, NAGOYA, AICHI 46401, JAPAN

[2] INST PHYS & CHEM RES, WAKO, SAITAMA 35001, JAPAN

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 1996年 / 48卷 / 03期

关键词：

stars; individual (Rapid Burster); neutron; X-rays; binaries; sources; transients;

D O I：

10.1093/pasj/48.3.L27

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We observed the Rapid Burster in quiescence and detected a significant X-ray flux for the first time. Neither a type-I nor type-II burst was observed during the observation. The luminosity was estimated to be (3(-1)(+2)) x 10(33) erg s(-1) (2-10 keV), assuming a power-law with a photon index of 2 and a distance of 10 kpc. This luminosity is comparable to that of neutron-star transients in quiescence. If mass accretion is responsible for the X-ray emission, we can constrain the magnetic-field strength and spin period of the neutron star. A highly magnetized, rapidly rotating neutron star may be excluded.

引用

页码：L27 / L31

页数：5

共 39 条

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