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SAND: an automated VLBI imaging and analysing pipeline - I. Stripping component trajectories
Zhang, M.1,2,3; Collioud, A.3; Charlot, P.3
2018-02-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume473Issue:4Pages:4505-4522
Contribution Rank1
Abstract

We present our implementation of an automated very long baseline interferometry (VLBI) data-reduction pipeline that is dedicated to interferometric data imaging and analysis. The pipeline can handle massive VLBI data efficiently, which makes it an appropriate tool to investigate multi-epoch multiband VLBI data. Compared to traditional manual data reduction, our pipeline provides more objective results as less human interference is involved. The source extraction is carried out in the image plane, while deconvolution and model fitting are performed in both the image plane and the uv plane for parallel comparison. The output from the pipeline includes catalogues of CLEANed images and reconstructed models, polarization maps, proper motion estimates, core light curves and multiband spectra. We have developed a regression STRIP algorithm to automatically detect linear or non-linear patterns in the jet component trajectories. This algorithm offers an objective method to match jet components at different epochs and to determine their proper motions.

KeywordTechniques: Image Processing Techniques: Interferometric Proper Motions Galaxies: Active Galaxies: Jets Radio Continuum: Galaxies
SubtypeArticle
DOI10.1093/mnras/stx1513
WOS HeadingsScience & Technology ; Physical Sciences
URL查看原文
Indexed BySCI
Language英语
WOS KeywordSearch ; Jets
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000424117300017
Funding OrganizationCentre National de la Recherche Scientifique (CNRS) at the Laboratoire d'Astrophysique de Bordeaux (LAB) in France ; National Basic Research Programme of China(2012CB821804, 2015CB857100) ; National Science Foundation of China(11103055) ; West Light Foundation of Chinese Academy of Sciences(RCPY201105) ; NASA through the Fermi Guest Investigator Programme
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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/45760611-7/1911
Collection射电天文研究室_星系宇宙学研究团组
110米口径全可动射电望远镜(QTT)_110米大口径全可动射电望远镜关键技术研究(973项目)_课题1:大样本射电天体的观测和前沿问题研究
Corresponding AuthorZhang, M.
Affiliation1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Bordeaux, Lab Astrophys Bordeaux, CNRS, UMR 5804, Bat B18N,Allee Geoffroy St Hilai, F-33615 Pessac, France
First Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Corresponding Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang, M.,Collioud, A.,Charlot, P.. SAND: an automated VLBI imaging and analysing pipeline - I. Stripping component trajectories[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,473(4):4505-4522.
APA Zhang, M.,Collioud, A.,&Charlot, P..(2018).SAND: an automated VLBI imaging and analysing pipeline - I. Stripping component trajectories.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,473(4),4505-4522.
MLA Zhang, M.,et al."SAND: an automated VLBI imaging and analysing pipeline - I. Stripping component trajectories".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 473.4(2018):4505-4522.
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