A search for pulse-to-pulse variability of the Crab pulsar

被引：9

作者：

Patt, BL ^{[1
]}

Ulmer, MP

Zhang, W

Cordes, JM

Arzoumanian, Z

机构：

[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

[2] NASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USA

[3] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA

[4] Cornell Univ, Natl Astron & Ionosphere Ctr, Ithaca, NY 14853 USA

来源：

ASTROPHYSICAL JOURNAL | 1999年 / 522卷 / 01期

关键词：

plasmas; pulsars : individual (Crab); stars : magnetic fields; stars : neutron;

D O I：

10.1086/307620

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the analysis of 1 hour's worth of RXTE data in which it was possible to detect individual pulses from the Crab pulsar. These data demonstrate that the Crab pulsar X-ray pulses are steady at the level of 7%, and we suggest that the emitting region is likely to come from a region where the magnetic field is "stiff."

引用

页码：440 / 443

页数：4

共 17 条

[1]

BRADT HV, 1993, ASTRON ASTROPHYS SUP, V97, P355

[2] ENERGETIC RADIATION FROM RAPIDLY SPINNING PULSARS .1. OUTER MAGNETOSPHERE GAPS [J].

CHENG, KS ;

HO, C ;

RUDERMAN, M .

ASTROPHYSICAL JOURNAL, 1986, 300 (02) :500-521

[3] ENERGETIC RADIATION FROM RAPIDLY SPINNING PULSARS .2. VELA AND CRAB [J].

CHENG, KS ;

HO, C ;

RUDERMAN, M .

ASTROPHYSICAL JOURNAL, 1986, 300 (02) :522-539

[4]

CORDES JM, 1993, ISOLATED PULSARS, P182

[5]

HARDING AK, 1993, ISOLATED PULSARS, P279

[6]

HEGYI D, 1971, CRAB NEBULA, P129

[7] CHANGES IN THE OPTICAL LIGHT-CURVE OF THE CRAB PULSAR BETWEEN 1970 AND 1977 [J].

JONES, DHP ;

SMITH, FG ;

NELSON, JE .

NATURE, 1980, 283 (5742) :50-51

[8]

Kawai N., 1993, AIP C P, V280, P213

[9] GIANT PULSES FROM THE CRAB PULSAR - A JOINT RADIO AND GAMMA-RAY STUDY [J].

LUNDGREN, SC ;

CORDES, JM ;

ULMER, M ;

MATZ, SM ;

LOMATCH, S ;

FOSTER, RS ;

HANKINS, T .

ASTROPHYSICAL JOURNAL, 1995, 453 (01) :433-445

[10]

Lyne A. G., 1990, PULSAR ASTRONOMY

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