PMO OpenIR  > 空间目标与碎片观测研究基地
VLBI observation of the M81 core with the CVN in X-band and the Pseudo-Closure Analysis
Kawaguchi, Noriyuki1,2; Jiang, Wu1,3,4; Shen, Zhi-Qiang1,3
2015-12-01
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
Volume67Issue:6
AbstractThe Chinese Very Long Baseline Interferometry (VLBI) Network (CVN) is now operating as part of the Chinese Lunar Project to track the lunar orbiter and to trace the motion of the lunar rover. The network works on radio astronomy observations as well. The galaxy core of M81 was observed at 8.3 GHz by three Chinese VLBI stations; the Nanshan 25-m, Sheshan 25-m, and Tianma 65-m radio telescopes. In the data analysis, we introduce a new parameter, the Pseudo-Closure Amplitude, to remove uncertainties in the sensitivity of the large dish telescope of the Tianma 65-m. The large dish is susceptible to gravitational loading and may show a large change of efficiency with a change of elevation angle. By introducing the Pseudo-Closure Amplitude we have successfully detected a jet in the core of M81 and measured the position angle.
KeywordGalaxies: Jets Instrumentation: Interferometers Methods: Data Analysis Techniques: Interferometric
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1093/pasj/psv083
WOS KeywordRADIO TELESCOPE ; NUCLEUS ; SYSTEM ; GHZ
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000366859800012
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16086
Collection空间目标与碎片观测研究基地
Affiliation1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
2.Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan
3.Chinese Acad Sci, Key Lab Radio Astron, Shanghai 200030, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Kawaguchi, Noriyuki,Jiang, Wu,Shen, Zhi-Qiang. VLBI observation of the M81 core with the CVN in X-band and the Pseudo-Closure Analysis[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2015,67(6).
APA Kawaguchi, Noriyuki,Jiang, Wu,&Shen, Zhi-Qiang.(2015).VLBI observation of the M81 core with the CVN in X-band and the Pseudo-Closure Analysis.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,67(6).
MLA Kawaguchi, Noriyuki,et al."VLBI observation of the M81 core with the CVN in X-band and the Pseudo-Closure Analysis".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 67.6(2015).
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