Diverse polarization angle swings from a repeating fast radio burst source

被引：175

作者：

Luo, R. ^{[1
,2
,3
]}

Wang, B. J. ^{[1
,2
]}

Men, Y. P. ^{[1
,2
]}

Zhang, C. F. ^{[1
,2
]}

Jiang, J. C. ^{[1
,2
]}

Xu, H. ^{[1
,2
]}

Wang, W. Y. ^{[2
,4
]}

Lee, K. J. ^{[1
,2
]}

Han, J. L. ^{[2
,4
,5
]}

Zhang, B. ^{[6
]}

Caballero, R. N. ^{[1
]}

Chen, M. Z. ^{[7
]}

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

Gan, H. Q. ^{[2
,5
]}

Guo, Y. J. ^{[1
,8
]}

Hao, L. F. ^{[9
]}

Huang, Y. X. ^{[9
]}

Jiang, P. ^{[2
,5
]}

Li, H. ^{[2
,4
]}

Li, J. ^{[7
]}

Li, Z. X. ^{[9
]}

Luo, J. T. ^{[10
]}

Pan, J. ^{[2
]}

Pei, X. ^{[4
,7
]}

Qian, L. ^{[2
,5
]}

Sun, J. H. ^{[2
,5
]}

Wang, M. ^{[9
]}

Wang, N. ^{[7
]}

Wen, Z. G. ^{[7
]}

Xu, R. X. ^{[1
,11
]}

Xu, Y. H. ^{[9
]}

Yan, J. ^{[2
,5
]}

Yan, W. M. ^{[7
]}

Yu, D. J. ^{[2
,5
]}

Yuan, J. P. ^{[7
]}

Zhang, S. B. ^{[3
,4
,12
]}

Zhu, Y. ^{[2
,5
]}

机构：

[1] Peking Univ, Kavli Inst Astron & Astrophys, Beijing, Peoples R China

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

[3] Australia Telescope Natl Facil, CSIRO Astron & Space Sci, Epping, NSW, Australia

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

[5] Chinese Acad Sci, CAS Key Lab FAST, Natl Astron Observ, Beijing, Peoples R China

[6] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA

[7] Chinese Acad Sci, Xinjiang Astron Observ, Urumqi, Peoples R China

[8] Max Planck Inst Radioastron, Bonn, Germany

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

[10] Chinese Acad Sci, Natl Time Serv Ctr, Xian, Peoples R China

[11] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China

[12] Chinese Acad Sci, Purple Mt Observ, Nanjing, Peoples R China

来源：

NATURE | 2020年 / 586卷 / 7831期

关键词：

D O I：

10.1038/s41586-020-2827-2

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：

Fast radio bursts (FRBs) are millisecond-duration radio transients(1,2) of unknown origin. Two possible mechanisms that could generate extremely coherent emission from FRBs invoke neutron star magnetospheres(3-5) or relativistic shocks far from the central energy source(6-8). Detailed polarization observations may help us to understand the emission mechanism. However, the available FRB polarization data have been perplexing, because they show a host of polarimetric properties, including either a constant polarization angle during each burst for some repeaters(9,10) or variable polarization angles in some other apparently one-off events(11,12). Here we report observations of 15 bursts from FRB 180301 and find various polarization angle swings in seven of them. The diversity of the polarization angle features of these bursts is consistent with a magnetospheric origin of the radio emission, and disfavours the radiation models invoking relativistic shocks.

引用

页码：693 / +

页数：18

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