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Limits on the Weak Equivalence Principle and Photon Mass with FRB 121102 Subpulses
Xing,Nan1; Gao,He1; Wei,Jun-Jie2; Li,Zhengxiang1; Wang,Weiyang3,4; Zhang,Bing5; Wu,Xue-Feng2; Mészáros,Peter6,7,8
2019-09-03
Source PublicationThe Astrophysical Journal Letters
ISSN2041-8205
Volume882Issue:1
AbstractAbstract Fast radio bursts (FRBs) are short-duration (~millisecond) radio transients with cosmological origin. The simple sharp features of the FRB signal have been utilized to probe two fundamental laws of physics, namely, testing Einstein’s weak equivalence principle and constraining the rest mass of the photon. Recently, Hessels et al. found that after correcting for dispersive delay, some of the bursts in FRB 121102 have complex time–frequency structures that include subpulses with a time–frequency downward drifting property. Using the delay time between subpulses in FRB 121102, here we show that the parameterized post-Newtonian parameter γ is the same for photons with different energies to the level of , which is 1000 times better than previous constraints from FRBs using similar methods. We also obtain a stringent constraint on the photon mass, mγ?
KeywordRadio transient sources
DOI10.3847/2041-8213/ab3c5f
Language英语
WOS IDIOP:2041-8205-882-1-ab3c5f
PublisherThe American Astronomical Society
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/27774
Collection中国科学院国家天文台
Affiliation1.Department of Astronomy, Beijing Normal University, Beijing 100875, People's Republic of China; gaohe@bnu.edu.cn
2.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China
3.Key Laboratory for Computational Astrophysics, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Beijing 100101, People's Republic of China
4.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
5.Department of Physics and Astronomy, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
6.Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802, USA
7.Department of Physics, Pennsylvania State University, 104 Davey Laboratory, University Park, PA 16802, USA
8.Center for Particle and Gravitational Astrophysics, Institute for Gravitation and the Cosmos, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802, USA
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GB/T 7714
Xing,Nan,Gao,He,Wei,Jun-Jie,et al. Limits on the Weak Equivalence Principle and Photon Mass with FRB 121102 Subpulses[J]. The Astrophysical Journal Letters,2019,882(1).
APA Xing,Nan.,Gao,He.,Wei,Jun-Jie.,Li,Zhengxiang.,Wang,Weiyang.,...&Mészáros,Peter.(2019).Limits on the Weak Equivalence Principle and Photon Mass with FRB 121102 Subpulses.The Astrophysical Journal Letters,882(1).
MLA Xing,Nan,et al."Limits on the Weak Equivalence Principle and Photon Mass with FRB 121102 Subpulses".The Astrophysical Journal Letters 882.1(2019).
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