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New bounds on axionlike particles from the Fermi Large Area Telescope observation of PKS 2155-304
Zhang, Cun1,2,3; Liang, Yun-Feng2; Li, Shang2; Liao, Neng-Hui2; Feng, Lei2; Yuan, Qiang2; Fan, Yi-Zhong2; Ren, Zhong-Zhou1,3
2018-03-15
Source PublicationPHYSICAL REVIEW D
ISSN2470-0010
Volume97Issue:6Pages:6
Corresponding AuthorFeng, Lei(fenglei@pmo.ac.cn) ; Yuan, Qiang(yuanq@pmo.ac.cn) ; Fan, Yi-Zhong(yzfan@pmo.ac.cn) ; Ren, Zhong-Zhou(zren@nju.edu.cn)
AbstractThe axionlike particle (ALP)-photon mixing in the magnetic field around gamma-ray sources or along the line of sight could induce oscillation between photons and ALPs, which then causes irregularities in the gamma-ray spectra. In this work we search for such spectral irregularities in the spectrum of PKS 2155 - 304 using 8.6 years of data from the Fermi Large Area Telescope (Fermi-LAT). No significant evidence for the presence of ALP-photon oscillation is obtained, and the parameter space of ALPs is constrained. The exclusion region sensitively depends on the poorly known magnetic field of the host galaxy cluster of PKS 2155 - 304. If the magnetic field is as high as similar to 10 mu G, the "holelike" parameter region allowed in Ref. [1] can be ruled out.
DOI10.1103/PhysRevD.97.063009
WOS KeywordSTRONG CP-PROBLEM ; MAGNETIC-FIELDS ; RADIATION ; SEARCHES ; PHOTON ; CONSTRAINTS ; INVARIANCE ; COSMOLOGY
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000427603700002
PublisherAMER PHYSICAL SOC
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22503
Collection中国科学院紫金山天文台
Corresponding AuthorFeng, Lei; Yuan, Qiang; Fan, Yi-Zhong; Ren, Zhong-Zhou
Affiliation1.Nanjing Univ, Sch Phys, Nanjing 210092, Jiangsu, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
3.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Cun,Liang, Yun-Feng,Li, Shang,et al. New bounds on axionlike particles from the Fermi Large Area Telescope observation of PKS 2155-304[J]. PHYSICAL REVIEW D,2018,97(6):6.
APA Zhang, Cun.,Liang, Yun-Feng.,Li, Shang.,Liao, Neng-Hui.,Feng, Lei.,...&Ren, Zhong-Zhou.(2018).New bounds on axionlike particles from the Fermi Large Area Telescope observation of PKS 2155-304.PHYSICAL REVIEW D,97(6),6.
MLA Zhang, Cun,et al."New bounds on axionlike particles from the Fermi Large Area Telescope observation of PKS 2155-304".PHYSICAL REVIEW D 97.6(2018):6.
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