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Mildly relativistic...
Mildly relativistic motion in the radio-quiet quasar PG 1351+640
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- Wang, Ailing (author)
- Shanghai Astronomical Observatory. Chinese Academy of Sciences,Shanghai Astronomical Observatory Chinese Academy of Sciences,Chinese Academy of Sciences
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- An, T. (author)
- Shanghai Astronomical Observatory. Chinese Academy of Sciences,Shanghai Astronomical Observatory Chinese Academy of Sciences,Chinese Academy of Sciences
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- Guo, Shaoguang (author)
- Chinese Academy of Sciences,Shanghai Astronomical Observatory. Chinese Academy of Sciences,Shanghai Astronomical Observatory Chinese Academy of Sciences
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- Ho, Luis C. (author)
- Beijing University of Technology
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- Baan, Willem A. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Braun, Robert (author)
- SKA Organisation
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- Chen, Sina (author)
- Technion – Israel Institute of Technology
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- Cheng, X. P. (author)
- Korea Astronomy and Space Science Institute
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- Hartley, Philippa (author)
- SKA Organisation
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- Yang, Jun, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Zhang, Y. K. (author)
- Shanghai Astronomical Observatory. Chinese Academy of Sciences,Shanghai Astronomical Observatory Chinese Academy of Sciences
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Shanghai Astronomical Observatory Chinese Academy of Sciences Chinese Academy of Sciences (creator_code:org_t)
- 2023
- 2023
- English.
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In: Monthly Notices of the Royal Astronomical Society: Letters. - 1745-3925 .- 1745-3933. ; 523:1, s. L30-L34
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Abstract
Subject headings
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- Measuring the proper motion of the emission component in radio-quiet quasars (RQQs) could help to distinguish between the origins of the radio emission and to understand whether the jet production mechanism is the same in radio-loud quasars and RQQs. PG 1351+640 is one of the few RQQs suitable for proper motion studies: it has two compact components on milli-arcsec scales, a flat-spectrum core and a steep-spectrum jet; both components are ≳2 mJy at 5 GHz and are well suited for Very Long Baseline Array (VLBA) observations. We compare recent VLBA observations with that made seventeen years ago and find no significant change in the core-jet separation between 2005 and 2015 (a proper motion of 0.003 mas yr-1). However, the core-jet separation increased significantly between 2015 and 2022, inferring a jet proper motion velocity of 0.063 mas yr-1, which corresponds to an apparent transverse velocity of. The result suggests that the jet of the RQQ PG 1351+640 is mildly relativistic and oriented at a relatively small viewing angle.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- galaxies: active
- quasars: jets
- galaxies: individual (PG 1351+640)
- galaxies: kinematics and dynamics
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Wang, Ailing
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An, T.
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Guo, Shaoguang
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Ho, Luis C.
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Baan, Willem A.
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Braun, Robert
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Chen, Sina
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Cheng, X. P.
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Hartley, Philipp ...
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Yang, Jun, 1979
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Zhang, Y. K.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
- Articles in the publication
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Monthly Notices ...
- By the university
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Chalmers University of Technology