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脉冲星B0329+54的S/X双频CVN观测
Alternative TitleVLBI Observation of Pulsar B0329+54 with CVN in S/X Bands
陈文1,2; 江悟2; 李志玄1,2; 徐永华1,2; 汪敏1
Source Publication天文学报(Acta Astronomica Sinica)
2015-11
Volume56Issue:6Pages:658-666
DOI10.15940/j.cnki.0001-5245.2015.06.011
ClassificationP164
Contribution Rank第1完成单位
Indexed ByCSCD ; 核心
Keyword仪器:高角分辨率 仪器:干涉仪 技术:高角分辨率 技术:干涉 脉冲星:普通
Abstract

利用CVN(Chinese VLBI Network)对脉冲星B0329+54进行了首次S/X双频观测,观测采用相位参考模式,频段为S/X双频16通道观测,数据采集终端是CDAS(Chinese Data Acquirement System),单通道带宽16 MHz.使用上海VLBI(very long baseline interferometry)中心的Di FX(Distributed FX)相关处理机对数据进行相关处理.利用Di FX特有的Pulsar Binning模式,以提高数据信噪比.对观测数据处理后得到了S/X两波段的高分辨率图像和位置信息,与前人VLBI结果对比显示观测结果较为符合.

Other Abstract

A VLBI (very long baseline interferometry) observation of pulsar B0329+54 was carried out with CVN (Chinese VLBI Network) in February 2015. It is the first time for CVN to observe the pulsar B0329+54 in S/X dual frequency bands. The observation was performed in phase referencing mode. The observation data, including 16 channels and 16 MHz bandwidth of each channel, were collected by CDAS (Chinese Data Acquirement System). The correlation was made by the DiFX (Distributed FX) correlator at Shanghai Astronomical Observatory. The pulsar binning mode in DiFX was used to increase the signal to noise ratio of the pulsar fringes. We obtained the accurate position of pulsar B0329+54 through the VLBI image. Our results are in good agreement with the previous VLBI results.

Funding Project国家自然科学基金项目[11303093] ; 国家自然科学基金项目[U1431113]
Funding Organization国家自然科学基金项目[11303093, U1431113]
Language中文
Subject Area天文学 ; 射电天文学
MOST Discipline Catalogue理学 ; 理学::天文学
ISSN0001-5245
Archive Date2016-01-06
CSCD IDCSCD:5571517
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5692
Collection射电天文研究组
Affiliation1.中国科学院云南天文台,昆明,650011
2.中国科学院大学,北京,100049
3.中国科学院上海天文台,上海,20003
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
陈文,江悟,李志玄,等. 脉冲星B0329+54的S/X双频CVN观测[J]. 天文学报(Acta Astronomica Sinica),2015,56(6):658-666.
APA 陈文,江悟,李志玄,徐永华,&汪敏.(2015).脉冲星B0329+54的S/X双频CVN观测.天文学报(Acta Astronomica Sinica),56(6),658-666.
MLA 陈文,et al."脉冲星B0329+54的S/X双频CVN观测".天文学报(Acta Astronomica Sinica) 56.6(2015):658-666.
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