Discovery of X-ray emission from the crab pulsar at pulse minimum

被引：47

作者：

Tennant, AF

Becker, W

Juda, M

Elsner, RF

Kolodziejczak, JJ

Murray, SS

O'Dell, SL

Paerels, F

Swartz, DA

Shibazaki, N

Weisskopf, MC

机构：

[1] NASA, Dept Space Sci, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA

[2] Max Planck Inst Extraterr Phys, D-85740 Garching, Germany

[3] Smithsonian Astrophys Observ, Cambridge, MA 02138 USA

[4] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

[5] NASA, Univ Space Res Assoc, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA

[6] Rikkyo Univ, Tokyo 1718501, Japan

来源：

ASTROPHYSICAL JOURNAL | 2001年 / 554卷 / 02期

关键词：

ISM : individual (Crab Nebula) pulsars : individual (Crab Pulsar) radiation mechanisms : nonthermal stars : neutron; X-rays : general;

D O I：

10.1086/321718

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Chandra X-Ray Observatory observed the Crab pulsar using the Low-Energy Transmission Grating with the High-Resolution Camera. Time-resolved zeroth-order images reveal that the pulsar emits X-rays at all pulse phases. Analysis of the flux at minimum-most likely nonthermal in origin-places an upper limit (T-infinity < 2.1 MK) on the surface temperature of the underlying neutron star. In addition, analysis of the pulse profile establishes that the error in the Chandra-determined absolute time is quite small, -0.2 +/- 0.1 ms.

引用

页码：L173 / L176

页数：4

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