Polarized gamma-ray emission from the crab

被引:175
作者
Dean, A. J. [1 ]
Clark, D. J. [1 ]
Stephen, J. B. [2 ]
McBride, V. A. [1 ]
Bassani, L. [2 ]
Bazzano, A. [3 ]
Bird, A. J. [1 ]
Hill, A. B. [1 ]
Shaw, S. E. [1 ]
Ubertini, P. [3 ]
机构
[1] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
[2] INAF IASF, I-40129 Bologna, Italy
[3] INAF IASF, I-00133 Rome, Italy
基金
英国科学技术设施理事会;
关键词
D O I
10.1126/science.1149056
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Pulsar systems accelerate particles to immense energies. The detailed functioning of these engines is still poorly understood, but polarization measurements of high- energy radiation may allow us to locate where the particles are accelerated. We have detected polarized gamma rays from the vicinity of the Crab pulsar using data from the spectrometer on the International Gamma- Ray Astrophysics Laboratory satellite. Our results show polarization with an electric vector aligned with the spin axis of the neutron star, demonstrating that a substantial fraction of the high- energy electrons responsible for the polarized photons are produced in a highly ordered structure close to the pulsar.
引用
收藏
页码:1183 / 1185
页数:3
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