constraints on the dark matter annihilation scenario of Fermi 130 GeV gamma-ray line emission by continuous gamma-rays, Milky Way halo, galaxy clusters and dwarf galaxies observations (vol 11, pg 48, 2013)

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 分子云与恒星形成研究团组

	constraints on the dark matter annihilation scenario of Fermi 130 GeV gamma-ray line emission by continuous gamma-rays, Milky Way halo, galaxy clusters and dwarf galaxies observations (vol 11, pg 48, 2013)
	Huang, Xiaoyuan 1; Yuan, Qiang 2,3; Yin, Peng-Fei 2; Bi, Xiao-Jun 2; Chen, Xuelei 1
刊名	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
	2013-05-01
卷号	0 期号:5 页码:0267
ISSN号	1475-7516
通讯作者	Huang, XY (reprint author), Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China. Email: huangxiaoyuan@gmail.com ; yuanq@ihep.ac.cn ; yinpf@ihep.ac.cn ; bixj@ihep.ac.cn ; xuelei@cosmology.bao.ac.cn
英文摘要	It was recently reported that there may exist monochromatic $\gamma$-ray emission at $\sim 130$ GeV from the Galactic center in the Fermi Large Area Telescope data, which might be related with dark matter (DM) annihilation. In this work we carry out a comprehensive check of consistency of the results with the DM annihilation scenario, using the 3.7 yrs Fermi observation of the inner Galaxy, Galactic halo, clusters of galaxies and dwarf galaxies. The results found are as follows. 1) Very strong constraints on the DM annihilation into continuous $\gamma$-rays from the Galactic center are set, which are as stringent as the "natural" scale assuming thermal freeze-out of DM. Such limit sets strong constraint on the DM models to explain the line emission. 2) No line emission from the Galactic halo is found in the Fermi data, and the constraints on line emission is marginally consistent with the DM annihilation interpretation of the $\sim 130$ GeV line emission from the inner Galaxy. 3) No line emission from galaxy clusters and dwarf galaxies is detected, although possible concentration of photons from clusters in 120-140 GeV is revealed. The constraints from clusters and dwarf galaxies are weak and consistent with the DM annihilation scenario to explain the $\sim 130$ GeV line emission.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]	Astronomy & Astrophysics ; Physics
收录类别	SCI
语种	英语
WOS记录号	WOS:000320161400002
公开日期	2014-01-08
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/9836]
专题	紫金山天文台_分子云与恒星形成研究团组
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Huang, Xiaoyuan,Yuan, Qiang,Yin, Peng-Fei,et al. constraints on the dark matter annihilation scenario of Fermi 130 GeV gamma-ray line emission by continuous gamma-rays, Milky Way halo, galaxy clusters and dwarf galaxies observations (vol 11, pg 48, 2013)[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2013,0(5):0267.
APA	Huang, Xiaoyuan,Yuan, Qiang,Yin, Peng-Fei,Bi, Xiao-Jun,&Chen, Xuelei.(2013).constraints on the dark matter annihilation scenario of Fermi 130 GeV gamma-ray line emission by continuous gamma-rays, Milky Way halo, galaxy clusters and dwarf galaxies observations (vol 11, pg 48, 2013).JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,0(5),0267.
MLA	Huang, Xiaoyuan,et al."constraints on the dark matter annihilation scenario of Fermi 130 GeV gamma-ray line emission by continuous gamma-rays, Milky Way halo, galaxy clusters and dwarf galaxies observations (vol 11, pg 48, 2013)".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS 0.5(2013):0267.