Peta-electron volt gamma-ray emission from the Crab Nebula The LHAASO Collaboration

被引：154

作者：

Cao, Zhen ^{[1
,2
,3
,4
,5
]}

Aharonian, F. ^{[6
,7
]}

An, Q. ^{[6
,8
]}

Axikegu ^{[10
,11
]}

Bai, L. X. ^{[12
]}

Bai, Y. X. ^{[1
,2
,3
,5
]}

Bao, Y. W. ^{[13
]}

Bastieri, D. ^{[14
]}

Bi, X. J. ^{[1
,2
,3
,4
,5
]}

Bi, Y. J. ^{[1
,2
,3
,5
]}

Cai, H. ^{[15
]}

Cai, J. T. ^{[14
]}

Cao, Zhe ^{[8
,9
]}

Chang, J. ^{[16
]}

Chang, J. F. ^{[1
,2
,3
,5
,8
]}

Chen, B. M. ^{[17
]}

Chen, E. S. ^{[1
,2
,3
,4
,5
]}

Chen, J. ^{[12
]}

Chen, Liang ^{[1
,2
,3
,4
,5
]}

Chen, View Orcid ProfileLiang ^{[18
]}

Chen, Long ^{[10
,11
]}

Chen, M. J. ^{[1
,2
,3
,5
]}

Chen, M. L. ^{[1
,2
,3
,5
,8
]}

Chen, Q. H. ^{[10
,11
]}

Chen, S. H. ^{[1
,2
,3
,4
,5
]}

Chen, S. Z. ^{[1
,2
,3
,5
]}

Chen, T. L. ^{[19
]}

Chen, X. L. ^{[1
,2
,3
,4
,5
]}

Chen, Y. ^{[13
]}

Cheng, N. ^{[1
,2
,3
,5
]}

Cheng, Y. D. ^{[1
,2
,3
,5
]}

Cui, S. W. ^{[17
]}

Cui, X. H. ^{[20
]}

Cui, Y. D. ^{[21
,22
]}

Piazzoli, B. D'Ettorre ^{[23
]}

Dai, B. Z. ^{[24
]}

Dai, H. L. ^{[1
,2
,3
,5
,8
]}

Dai, Z. G. ^{[9
]}

Danzengluobu ^{[19
]}

della Volpe, D. ^{[25
]}

Dong, X. J. ^{[1
,2
,3
,5
]}

Duan, K. K. ^{[16
]}

Fan, J. H. ^{[14
]}

Fan, Y. Z. ^{[16
]}

Fan, Z. X. ^{[1
,2
,3
,5
]}

Fang, J. ^{[24
]}

Fang, K. ^{[1
,2
,3
,5
]}

Feng, C. F. ^{[26
]}

Feng, L. ^{[16
]}

Feng, S. H. ^{[1
,2
,3
,5
]}

机构：

[1] Chinese Acad Sci, Key Lab Particle Astrophys, Beijing 100049, Peoples R China

[2] Chinese Acad Sci, Expt Phys Div, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[5] Tianfu Cosm Ray Res Ctr, Chengdu, Sichuan, Peoples R China

[6] Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland

[7] Max Planck Inst Nucl Phys, POB 103980, D-69029 Heidelberg, Germany

[8] State Key Lab Particle Detect & Elect, Shanghai, Peoples R China

[9] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China

[10] Southwest Jiao Tong Univ, Sch Phys Sci & Technol, Chengdu 610031, Sichuan, Peoples R China

[11] Southwest Jiao Tong Univ, Sch Informat Sci & Technol, Chengdu 610031, Sichuan, Peoples R China

[12] Sichuan Univ, Coll Phys, Chengdu 610065, Sichuan, Peoples R China

[13] Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Jiangsu, Peoples R China

[14] Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China

[15] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China

[16] Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210023, Jiangsu, Peoples R China

[17] Hebei Normal Univ, Shijiazhuang 050024, Hebei, Peoples R China

[18] Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China

[19] Tibet Univ, Key Lab Cosm Rays, Minist Educ, Lhasa 850000, Tibet, Peoples R China

[20] Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China

[21] Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519000, Guangdong, Peoples R China

[22] Sun Yat Sen Univ, Sch Phys Guangzhou, Zhuhai 519000, Peoples R China

[23] Univ Napoli Federico II, Complesso Univ Monte St Angelo, Dipartimento Fis, Via Cinthia, I-80126 Naples, Italy

[24] Yunnan Univ, Sch Phys & Astron, Kunming 650091, Yunnan, Peoples R China

[25] Univ Geneva, Dept Phys Nucl & Corpusculaire, Fac Sci, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland

[26] Shandong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Shandong, Peoples R China

[27] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

[28] Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 450001, Henan, Peoples R China

[29] Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China

[30] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[31] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[32] Guangxi Univ, Sch Phys Sci & Technol, Nanning 530004, Guangxi, Peoples R China

[33] Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China

[34] Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China

[35] Mahidol Univ, Fac Sci, Dept Phys, Bangkok 10400, Thailand

[36] Moscow Inst Phys & Technol, Moscow 141700, Russia

[37] Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China

来源：

SCIENCE | 2021年 / 373卷 / 6553期

基金：

国家重点研发计划;

关键词：

PULSAR WIND NEBULAE; ENERGY COSMIC-RAYS; ACCELERATION; SPECTRUM; ORIGIN; SYNCHROTRON; PARTICLES; DISCOVERY; RADIATION; FLARES;

D O I：

10.1126/science.abg5137

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：

The Crab Nebula is a bright source of gamma rays powered by the Crab Pulsar's rotational energy through the formation and termination of a relativistic electron-positron wind. We report the detection of gamma rays from this source with energies from 5 x 10(-4) to 1.1 peta-electron volts with a spectrum showing gradual steepening over three energy decades. The ultrahigh-energy photons imply the presence of a peta-electron volt electron accelerator (a pevatron) in the nebula, with an acceleration rate exceeding 15% of the theoretical limit. We constrain the pevatron's size between 0.025 and 0.1 parsecs and the magnetic field to approximate to 110 microgauss. The production rate of peta-electron volt electrons, 2.5 x 10(36) ergs per second, constitutes 0.5% of the pulsar spin-down luminosity, although we cannot exclude a contribution of peta-electron volt protons to the production of the highest-energy gamma rays.

引用

页码：425 / +

页数：37

共 66 条

[51] Nonlinear theory of diffusive acceleration of particles by shock waves [J].