Robust limits on photon mass from statistical samples of extragalactic radio pulsars
文献类型：期刊论文
| 作者 | Wei, Jun-Jie2,3; Wu, Xue-Feng1,3 |
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2018-07-01 |
| 期号 | 7页码:11 |
| 关键词 | radio pulsars intergalactic media |
| ISSN号 | 1475-7516 |
| DOI | 10.1088/1475-7516/2018/07/045 |
| 通讯作者 | Wei, Jun-Jie(jjwei@pmo.ac.cn) |
| 英文摘要 | The photon zero-mass hypothesis has been investigated for a long time using the frequency-dependent time delays of radio emissions from astrophysical sources. However, the search for a rest mass of the photon has been hindered by the similarity between the frequency-dependent dispersions due to the plasma and nonzero photon mass effects. Considering the contributions to the observed dispersion measure from both the plasma and nonzero photon mass effects, and assuming the dispersion induced by the plasma effect is an unknown constant, we obtain a robust limit on the photon mass by directly fitting a combination of the dispersion measures of radio sources. Using the observed dispersion measures from two statistical samples of extragalactic pulsars, here we show that at the 68% confidence level, the constraints on the photon mass can be as low as m(gamma) <= 1.51 x 10(-48) kg similar or equal to 8.47 x 10(-13) eV/c(2) for the sample of 22 radio pulsars in the Large Magellanic Cloud and m(gamma) <= 1.58 x 10(-48) kg similar or equal to 8.86 x 10(-13) eV/c(2) for the other sample of 5 radio pulsars in the Small Magellanic Cloud, which are comparable with that obtained by a single extragalactic pulsar. Furthermore, the statistical approach presented here can also be used when more fast radio bursts with known redshifts are detected in the future. |
| WOS关键词 | LARGE-MAGELLANIC-CLOUD ; LIGHT ; DISCOVERY ; VELOCITY ; BURSTS ; LAW |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000439590200001 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/32574]  |
| 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.Univ Sci & Technol China, Sch Astron & Space Sci, 96 JinZhai Rd, Hefei 230026, Anhui, Peoples R China 2.Guangxi Univ, Guangxi Key Lab Relativist Astrophys, 100 East Daxue Rd, Nanning 530004, Jiangsu, Peoples R China 3.Chinese Acad Sci, Purple Mt Observ, 8 Yuanhua Rd, Nanjing 210034, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Jun-Jie,Wu, Xue-Feng. Robust limits on photon mass from statistical samples of extragalactic radio pulsars[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2018(7):11. |
| APA | Wei, Jun-Jie,&Wu, Xue-Feng.(2018).Robust limits on photon mass from statistical samples of extragalactic radio pulsars.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(7),11. |
| MLA | Wei, Jun-Jie,et al."Robust limits on photon mass from statistical samples of extragalactic radio pulsars".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .7(2018):11. |
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来源：紫金山天文台
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