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High resolution interferometry of the QSO 1422+202
Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).ORCID iD: 0000-0002-4826-019X
Istituto di Radioastronomia del C.N.R., Bologna, Italy.
Istituto di Radioastronomia del C.N.R., Bologna, Italy.
1997 (English)In: Astronomy and Astrophysics. Supplement Series, ISSN 1286-4846, Vol. 125, no 1, p. 453-458Article in journal (Refereed) Published
Abstract [en]

We present VLA A-array observations at 8.4 and 15GHz and European VLBI Network (EVN) observations at 1.6GHz of the radio source 1422+202. It is suggested that 1422+202 is a Medium-size Object in the evolutionary sequence from Compact Steep-spectrum Sources to larger sized radio sources. The VLBI data were analysed with the phase referencing technique and we show that the EVN can work as a phase stable instrument for separations between the calibrator source and the target source up to ~ 10 degrees. With the VLA and VLBI observations we investigate some of the issues about the nucleus of 1422+202 and we discuss the possible cause for the low frequency variability detected while monitoring the source.

Place, publisher, year, edition, pages
Berlin: Springer-Verlag , 1997. Vol. 125, no 1, p. 453-458
Keywords [en]
galaxies:jets, quasars:QSO 1422+202, radio continuuk:galaxies
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:hh:diva-1872DOI: 10.1051/aas:1997234ISI: A1997YE50000006Scopus ID: 2-s2.0-33748738970Local ID: 2082/2267OAI: oai:DiVA.org:hh-1872DiVA, id: diva2:239090
Available from: 2008-09-10 Created: 2008-09-10 Last updated: 2018-09-11Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf