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New constraints on Lorentz invariance violation with polarized gamma-ray bursts
Wei, Jun-Jie1,2
2019-05-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume485Issue:2Pages:2401-2406
Corresponding AuthorWei, Jun-Jie(jjwei@pmo.ac.cn)
AbstractLorentz invariance violations (LIV) can yield vacuum birefringence, which results in an energy-dependent rotation of the polarization vector of linearly polarized emission from astrophysical sources. It is believed that if the relative rotation angle (Delta Theta) of the polarization vector of high-energy photons with respect to that of low-energy photons is larger than p/2, then the net polarization of the signal would be significantly depleted and could not be as high as the observed level. Hence, the measurement of high polarization implies that Delta Theta should not be too large. In this work, we assemble recent detections of prompt emission polarization in gamma-ray bursts (GRBs), all of whom have high detection significance. Following the method shown in Lin, Li & Chang (2016), we give a detailed calculation on the polarization evolution arising from the LIV effect for each GRB, and confirm that, even if Delta Theta is approaching to pi/2, the net polarization is not severely suppressed, and more than 60 per cent of the initial polarization can be conserved. Applying this method to our GRB polarimetric data, we improve existing sensitivities to LIV involving photons by factors ranging from 2 to 10. In addition, we prove that our constraints are not greatly affected by uncertainties in the spectral parameters of GRBs.
Keywordastroparticle physics gravitation polarization gamma-ray burst: general
DOI10.1093/mnras/stz594
WOS KeywordGRB 041219A ; EMISSION ; SPECTRA ; LIMITS ; CPT
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000474886200066
PublisherOXFORD UNIV PRESS
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/27423
Collection中国科学院紫金山天文台
Corresponding AuthorWei, Jun-Jie
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210034, Jiangsu, Peoples R China
2.Guangxi Univ, Guangxi Key Lab Relativist Astrophys, Nanning 530004, Peoples R China
Recommended Citation
GB/T 7714
Wei, Jun-Jie. New constraints on Lorentz invariance violation with polarized gamma-ray bursts[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,485(2):2401-2406.
APA Wei, Jun-Jie.(2019).New constraints on Lorentz invariance violation with polarized gamma-ray bursts.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,485(2),2401-2406.
MLA Wei, Jun-Jie."New constraints on Lorentz invariance violation with polarized gamma-ray bursts".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 485.2(2019):2401-2406.
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