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  • Marcaide, J. M.Massachusetts Institute of Technology, Cambridge, MA, USA & Max-Planck-Institut für Radioastronomie, Bonn, Germany (author)

The quasars 1038+528 A and B

  • Article/chapterEnglish1985

Publisher, publication year, extent ...

  • Les Ulis :EDP Sciences,1985
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:hh-22787
  • https://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-22787URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • The results of VLBI observations of the quasars 1038 + 528 A and B at 2.8, 3.6, 13, and 18 cm at various times between November 1979 and March 1981 are reported. The observations and data calibration are described, as are the mapping and astrometric techniques applied in the study. Both quasars are found to have 'core-jet' morphologies. The core of the A quasar dominates its morphology at centrimetric wavelengths with the brightness temperature of its 400 pc long jet being about 1/100 that of the core. By contrast, the 'jet' in the B quasar is very short (about 70 pc); the tail of this jet has the steepest spectral index found to date in extragalactic compact sources, indicating that high electron losses are responsible for the shortness of the jet. No evidence for appreciable morphological change in the B quasar was found over the time span of the study, whereas a new feature may be emerging from the A quasar core at superluminal speed.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Shapiro, I. I.Massachusetts Institute of Technology, Cambridge, MA, USA & Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA (author)
  • Corey, B. E.Massachusetts Institute of Technology, Cambridge, MA, USA & Haystack Observatory/NEROC, Westford, MA, USA (author)
  • Cotton, W. D.National Radio Astronomy Observatory, Charlottesville, VA, United States (author)
  • Gorenstein, M. V.Massachusetts Institute of Technology, Cambridge, MA, USA & Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA (author)
  • Rogers, A. E. E.Haystack Observatory/NEROC, Westford, MA, USA (author)
  • Romney, J. D.Max-Planck-Institut für Radioastronomie, Bonn, Germany (author)
  • Schild, R. E.Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA (author)
  • Bååth, L.B.1948-Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Sweden(Swepub:hh)baath (author)
  • Bartel, N.Massachusetts Institute of Technology, Cambridge, MA, USA & Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA (author)
  • Cohen, N. L.Massachusetts Institute of Technology, Cambridge, MA, USA; Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA & Cornell University, Ithaca, NY, USA (author)
  • Clark, T. A.NASA, Goddard Space Flight Center, Greenbelt, MD, USA (author)
  • Preston, R. A.Jet Propulsion Laboratory, Pasadena, CA, USA (author)
  • Ratner, M. I.Massachusetts Institute of Technology, Cambridge, MA, USA & Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA (author)
  • Whitney, A. R.Haystack Observatory/NEROC, Westford, MA, USA (author)
  • Massachusetts Institute of Technology, Cambridge, MA, USA & Max-Planck-Institut für Radioastronomie, Bonn, GermanyMassachusetts Institute of Technology, Cambridge, MA, USA & Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA (creator_code:org_t)

Related titles

  • In:Astronomy and AstrophysicsLes Ulis : EDP Sciences142:1, s. 71-840004-63611432-0746

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