Strong pulses detected from rotating radio transient J1819-1458

CORC > 新疆天文台 > 研究单元未命名 > 射电天文研究室 > 脉冲星研究团组

	Strong pulses detected from rotating radio transient J1819-1458
	H.D.Hu1,2 ; A.Esamdin1 ; J.P.Yuan1 ; Z.Y.Liu1 ; R.X.Xu 3; J.Li1,2 ; G.C.Tao1,2 ; N.Wang1
刊名	Astronomy & Astrophysics
	2011-06
卷号	530 页码:A67
关键词	stars: neutron pulsars: individual: J1819-1458
ISSN号	0004-6361
通讯作者	aliyi@xao.ac.cn
英文摘要	Aims. We analyze individual pulses detected from RRAT J1819-1458. Methods. From April 2007 to April 2010, we carried out observations using the Nanshan 25-m radio telescope of Urumqi Observatory at a central frequency of 1541.25 MHz. Results. We obtain a dispersion measure DM = 195.7 +/- 0.3 pc cm(-3) by analyzing all the 423 detected bursts. The tri-band pattern of arrival time residuals is confirmed by a single pulse timing analysis. Twenty-seven bimodal bursts located in the middle residual band are detected, and, profiles of two typical bimodal bursts and two individual single-peak pulses are presented. We determine the statistical properties of SNR and W-50 of bursts in different residual bands. The W50 variation with SNR shows that the shapes of bursts are quite different from each other. The cumulative probability distribution of intensity for a possible power law with index alpha = 1.6 +/- 0.2 is inferred from the number of those bursts with SNR >= 6 and high intensities.
学科主题	致密天体、高能和基础物理
收录类别	SCI ; EI
资助信息	National Natural Science Foundation of China (grant 10973026, 10903019, 10935001 and 10973002); Natural Science Foundation of Xinjiang Uygur Autonomous Region of China (grant 2009211B35); National Basic Research Program of China (grant 2009CB824800);Knowledge Innovation Program of the Chinese Academy of Science (grant KJCX2-YW-T09).
原文出处	http://www.aanda.org/
语种	英语
WOS记录号	WOS:000291027400067
公开日期	2013-03-06
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/63]
专题	脉冲星研究团组新疆天文台_光学天文与技术应用研究室新疆天文台_射电天文研究室新疆天文台_其它研究生
作者单位	1.Urumqi Observatory, NAOC, 40-5 South Beijing Road, Urumqi 830011, P.R. China 2.Graduate University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, P.R. China 3.School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, P.R. China
推荐引用方式 GB/T 7714	H.D.Hu,A.Esamdin,J.P.Yuan,et al. Strong pulses detected from rotating radio transient J1819-1458[J]. Astronomy & Astrophysics,2011,530:A67.
APA	H.D.Hu.,A.Esamdin.,J.P.Yuan.,Z.Y.Liu.,R.X.Xu.,...&N.Wang.(2011).Strong pulses detected from rotating radio transient J1819-1458.Astronomy & Astrophysics,530,A67.
MLA	H.D.Hu,et al."Strong pulses detected from rotating radio transient J1819-1458".Astronomy & Astrophysics 530(2011):A67.