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The inner radio jet of 3C273
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- Zensus, J. A. (författare)
- Owens Valley Radio Observatory, California Institute of Technology, Pasadena, California, USA
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- Bååth, L.B. 1948- (författare)
- Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Sweden & Owens Valley Radio Observatory, California Institute of Technology, Pasadena, California, USA
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- Cohen, M. H. (författare)
- Owens Valley Radio Observatory, California Institute of Technology, Pasadena, California, USA
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- Nicolson, G. D. (författare)
- Hartebeesthoek Radio Observatory, Johannesburg, South Africa
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(creator_code:org_t)
- 1988-08-01
- Engelska.
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Ingår i: Nature. - London : Nature Publishing Group. - 0028-0836 .- 1476-4687. ; 334:6181, s. 410-412
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Radio maps of 3C273 obtained with very long baseline interferometry (VLBI) have been limited by low dynamic range and poor north-south resolution resulting from the low declination (2°) of this quasar1. Dramatic improvement can now be achieved using larger arrays and antennas in the Southern Hemisphere2,3. A new VLBI map, made at 5 GHz with angular resolution and dynamic range unsurpassed at this frequency for this source, shows a narrow jet extending to a projected distance lproj∼125 h-;1 parsecs from the core. Superluminal motion exists out to at least lproj≈46h-1 parsecs. Successive superluminal components emerge from the core and appear to move on a fixed curved path with similar speeds of about 1 milliarcseconds per year. © 1988 Nature Publishing Group.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)