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Observations of giant pulses of the Crab Pulsar
Kong, Ling-Jun1,2; Esamdin, Ali1; Zhao, Cheng-Shi1,2; Liu, Zhi-Yong1; Yuan, Jian-Ping1,2
2008-06-01
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
ISSN1009-9271
Volume8Issue:3Pages:277-284
Contribution Rank1
Abstract

The Crab Pulsar was observed at 1540 MHz with the 25 m radio telescope at Urumqi with a filterbank de-dispersion backend. A total of 2436 giant pulses with pulse energies larger than 4300 Jy mu s were detected in two observing sets. All of these giant pulses are located in the main pulse (MP) and inter pulse (IP) windows of the average profile of the Crab Pulsar. The ratio of the numbers of giant pulses detected in the IP and MP windows is about 0.05. Our results show that, at 1540 MHz, the emission in the IP is contributed by giant and normal pulses, while that in the MP is almost dominated by giant pulses. The distribution of energy of the 2436 giant pulses at 1540 MHz can be described by a power-law with index alpha = 3.13 +/- 0.09. The intrinsic threshold of giant pulse energy in the MP window is about 1400 Jy mu s at 1540 MHz.

KeywordStars : Neutron Pulsars : General Pulsars : Individual Crab Pulsar
SubtypeArticle
Subject Area致密天体、高能和基础物理
WOS HeadingsScience & Technology ; Physical Sciences
URL查看原文
Indexed BySCI
Language英语
WOS KeywordRadio Pulses ; Multifrequency Observations ; Millisecond Pulsar ; Emission ; b1937+21 ; Universe ; Bursts
Funding Project脉冲星研究团组
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000257222800005
Funding OrganizationNational Natural Science Foundation of China (NSFC) under No.10573026 ; program of the Light in China’s Western Region (LCWR) under No. LHXZ200602 ; Key Directional Project of CAS
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/87
Collection射电天文研究室_脉冲星研究团组
射电天文研究室
光学天文与技术应用研究室
Corresponding AuthorEsamdin, Ali
Affiliation1.Chinese Acad Sci, NAOC, Urumqi Observ, Urumqi 830011, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
First Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Corresponding Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Kong, Ling-Jun,Esamdin, Ali,Zhao, Cheng-Shi,et al. Observations of giant pulses of the Crab Pulsar[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2008,8(3):277-284.
APA Kong, Ling-Jun,Esamdin, Ali,Zhao, Cheng-Shi,Liu, Zhi-Yong,&Yuan, Jian-Ping.(2008).Observations of giant pulses of the Crab Pulsar.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,8(3),277-284.
MLA Kong, Ling-Jun,et al."Observations of giant pulses of the Crab Pulsar".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 8.3(2008):277-284.
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