New constraints on Lorentz invariance violation with polarized gamma-ray bursts
文献类型：期刊论文
| 作者 | Wei, Jun-Jie1,2 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 485期号:2页码:2401-2406 |
| ISSN号 | 0035-8711 |
| 关键词 | astroparticle physics gravitation polarization gamma-ray burst: general |
| DOI | 10.1093/mnras/stz594 |
| 通讯作者 | Wei, Jun-Jie(jjwei@pmo.ac.cn) |
| 英文摘要 | Lorentz 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. |
| WOS关键词 | GRB 041219A ; EMISSION ; SPECTRA ; LIMITS ; CPT |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000474886200066 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/27422]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Wei, Jun-Jie |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：紫金山天文台
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