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Constraints on axion-like particle properties with TeV gamma-ray observations of Galactic sources
Liang, Yun-Feng1; Zhang, Cun1,2; Xia, Zi-Qing1,3; Feng, Lei1,4; Yuan, Qiang1,3; Fan, Yi-Zhong1,3
2019-06-01
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
ISSN1475-7516
Issue6Pages:20
Corresponding AuthorXia, Zi-Qing(xiazq@pmo.ac.cn) ; Fan, Yi-Zhong(yzfan@pmo.ac.cn)
AbstractAxion-like particles (ALPs) can oscillate into photons and vice versa in the magnetic fields, which provides a feasible explanation of the observed transparency of the Universe for TeV gamma rays. The coupling g(a gamma) for the ALP mass m(a) <= 10(-7) eV has been tightly constrained by the Fermi-LAT and H.E.S.S. observations of some extragalactic sources. In this work, we search for the ALP oscillation effect with the H.E.S.S. observation data of some TeV sources in the Galactic plane for the first time. No significant ALP signal is found. The constraints on the ALP parameters, though sensitively depend on the Galactic magnetic field (GMF) model, are more stringent than the limits set by the CAST experiment at m(a) similar to 0.1 mu eV. The upcoming CTA observations of these Galactic TeV sources are able to improve the constraints substantially.
Keyworddark matter experiments gamma ray experiments
DOI10.1088/1475-7516/2019/06/042
WOS KeywordMONTE-CARLO ; TRANSPARENT ; SPECTRA ; PHOTON
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000472500800001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/27573
Collection中国科学院紫金山天文台
Corresponding AuthorXia, Zi-Qing; Fan, Yi-Zhong
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
2.Nanjing Univ, Sch Phys, Nanjing 210092, Jiangsu, Peoples R China
3.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China
4.Qingdao Univ, Coll Phys, Qingdao 266071, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Liang, Yun-Feng,Zhang, Cun,Xia, Zi-Qing,et al. Constraints on axion-like particle properties with TeV gamma-ray observations of Galactic sources[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2019(6):20.
APA Liang, Yun-Feng,Zhang, Cun,Xia, Zi-Qing,Feng, Lei,Yuan, Qiang,&Fan, Yi-Zhong.(2019).Constraints on axion-like particle properties with TeV gamma-ray observations of Galactic sources.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(6),20.
MLA Liang, Yun-Feng,et al."Constraints on axion-like particle properties with TeV gamma-ray observations of Galactic sources".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .6(2019):20.
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