NAOC Open IR
nonballisticmotionandprecessinghelicaltrajectoryinquasarnrao150
Qian Shanjie
2016
Source Publicationresearchinastronomyandastrophysics
ISSN1674-4527
Volume16Issue:1
AbstractNRAO 150 is a very special radio quasar in which prominent non-ballistic superluminal motion has been observed in its inner-jet region. We apply model-fittings to the kinematics of the superluminal knots (trajectory, distance from the core and apparent velocity) in terms of a helical precessing jet-nozzle model. Five cases are considered in which the angle between the jet axis and the line of sight is assumed to be 6 degrees, 3 degrees, 1 degrees, 0.6 degrees and 0.12 degrees, respectively. It is shown that the superluminal components have intrinsic acceleration in the innermost regions (less than or similar to 0.2 mas from the core). The phenomenon of precessing nozzle/trajectory can be understood on the basis of relativistic magnetohydrodynamic theories for relativistic jets.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/47068
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Qian Shanjie. nonballisticmotionandprecessinghelicaltrajectoryinquasarnrao150[J]. researchinastronomyandastrophysics,2016,16(1).
APA Qian Shanjie.(2016).nonballisticmotionandprecessinghelicaltrajectoryinquasarnrao150.researchinastronomyandastrophysics,16(1).
MLA Qian Shanjie."nonballisticmotionandprecessinghelicaltrajectoryinquasarnrao150".researchinastronomyandastrophysics 16.1(2016).
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