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
收藏
页码：L173 / L176
页数：4
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