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Lin, HN; Li, X; Chang, Z; Li, X (reprint author), Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China.; Li, X (reprint author), Chinese Acad Sci, Inst High Energy Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Gamma-ray burst polarization reduction induced by the Lorentz invariance violation
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Language英语
KeywordPolarization Gamma-ray Burst: General
AbstractIt has been observed that photons in the prompt emission of some gamma-ray bursts (GRBs) are highly polarized. The high polarization is used by some authors to give a strict constraint on the Lorentz invariance violation (LIV). If the Lorentz invariance is broken, the polarization vector of a photon may rotate during its propagation. The rotation angle of polarization vector depends on both the photon energy and the distance of source. It is believed that if high polarization is observed, then the relative rotation angle (denoted by alpha) of polarization vector of the highest energy photon with respect to that of the lowest energy photon should be no more than pi/2. Otherwise, the net polarization will be severely suppressed, thus could not be as high as what was actually observed. In this paper, we will give a detailed calculation on the evolution of GRB polarization arising from LIV effect duration the propagation. It is shown that the polarization degree rapidly decrease as alpha increases, and reaches a local minimum at alpha approximate to pi, then increases until alpha approximate to 3 pi/2, after that decreases again until alpha approximate to 2 pi, etc. The polarization degree as a function of alpha oscillates with a quasi-period T a approximate to pi, while the oscillating amplitude gradually decreases to zero. Moreover, we find that a considerable amount (more than 60 per cent of the initial polarization) of polarization degree can be conserved when alpha approximate to pi/2. The polarization observation in a higher and wider energy band, a softer photon spectrum, and a higher redshift GRB is favourable in order to tightly constrain LIV effect.
2016
Volume463Issue:1Pages:375-381
Subject AreaAstronomy & Astrophysics
DOIhttp://dx.doi.org/10.1093/mnras/stw2007
Indexed BySCI
Funding OrganizationFundamental Research Funds for the Central Universities [106112016CDJCR301206] ; Fundamental Research Funds for the Central Universities [106112016CDJCR301206] ; Fundamental Research Funds for the Central Universities [106112016CDJCR301206] ; Fundamental Research Funds for the Central Universities [106112016CDJCR301206] ; National Natural Science Fund of China [11375203] ; National Natural Science Fund of China [11375203] ; National Natural Science Fund of China [11375203] ; National Natural Science Fund of China [11375203] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21481
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLin, HN; Li, X (reprint author), Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China.; Li, X (reprint author), Chinese Acad Sci, Inst High Energy Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Lin, HN,Li, X,Chang, Z,et al. Gamma-ray burst polarization reduction induced by the Lorentz invariance violation[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,463(1):375-381.
APA Lin, HN,Li, X,Chang, Z,Li, X ,&Li, X .(2016).Gamma-ray burst polarization reduction induced by the Lorentz invariance violation.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,463(1),375-381.
MLA Lin, HN,et al."Gamma-ray burst polarization reduction induced by the Lorentz invariance violation".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 463.1(2016):375-381.
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