STRANGE QUARK STARS AS A PROBE OF DARK MATTER

doi:10.3847/0004-637X/831/2/127

	STRANGE QUARK STARS AS A PROBE OF DARK MATTER
	Zheng, Hao 1,2; Chen, Lie-Wen 1,2,3
刊名	ASTROPHYSICAL JOURNAL
	2016-11-20
卷号	831 页码:6
关键词	dark matter stars: neutron
ISSN号	0004-637X
DOI	10.3847/0004-637X/831/2/127
英文摘要	We demonstrate that the observation of old strange quark stars (SQSs) can set important limits on the scattering cross-sections sigma(q) between light quarks and non-interacting scalar dark matter (DM). By analyzing a set of 1403 solitary pulsar-like compact stars in the Milky Way, we find that the old solitary pulsar PSR J1801-0857D can set the most stringent upper limits on sigma(q) or the cross-sections sigma(p) between DM and protons. By converting sigma(q) into sigma(p) based on effective operator analyses, we show that the resulting sigma(p) limit, by assuming PSR J1801-0857D is an SQS, is comparable with that of the current direct detection experiments in terrestrial labs but weaker by several orders of magnitude than that obtained by assuming PSR J1801-0857D is a neutron star (NS), which requires an extremely small sigma(p) far beyond the limits of direct detection experiments. Our findings imply that old pulsars are more likely to be identified as SQSs than as NSs in future terrestrial experiments observing scalar DM.
资助项目	Major State Basic Research Development Program (973 Program) in China[2015CB856904] ; Major State Basic Research Development Program (973 Program) in China[2013CB834405] ; NSFC[11275125] ; NSFC[11135011] ; "Shu Guang" project - Shanghai Municipal Education Commission and Shanghai Education Development Foundation ; Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning ; Science and Technology Commission of Shanghai Municipality[11DZ2260700]
WOS关键词	NEUTRON-STARS ; COMPACT STARS ; HALOS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000387792500013
资助机构	Major State Basic Research Development Program (973 Program) in China ; NSFC ; "Shu Guang" project - Shanghai Municipal Education Commission and Shanghai Education Development Foundation ; Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning ; Science and Technology Commission of Shanghai Municipality
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/43737]
专题	中国科学院近代物理研究所
通讯作者	Chen, Lie-Wen
作者单位	1.Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China 2.Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China 3.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Hao,Chen, Lie-Wen. STRANGE QUARK STARS AS A PROBE OF DARK MATTER[J]. ASTROPHYSICAL JOURNAL,2016,831:6.
APA	Zheng, Hao,&Chen, Lie-Wen.(2016).STRANGE QUARK STARS AS A PROBE OF DARK MATTER.ASTROPHYSICAL JOURNAL,831,6.
MLA	Zheng, Hao,et al."STRANGE QUARK STARS AS A PROBE OF DARK MATTER".ASTROPHYSICAL JOURNAL 831(2016):6.