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The Radio Fine Structure of the BL Lacertae Objects AO0235+164, 0735+178, BL Lac, 1749+701, Mk 421 and 3C 66 A at 5 GHz
Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Sweden.ORCID iD: 0000-0002-4826-019X
Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Sweden.
Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Sweden.
Max-Planck-Institut für Radioastronomie, Bonn, Germany.
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1981 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 96, no 1-2, 316-324 p.Article in journal (Refereed) Published
Abstract [en]

Very long baseline interferometer observations at 4997 MHz (lambda = 6 cm) on European and intercontinental baselines with lengths up to 1.35 108lambda have been used to probe the milliarc s structure of the BL Lacertae objects AO 0235+164, 0735+178, BL Lac, 1749+701, Mk 421, and 3C 66A. Two sets of observations are reported, made in November 1978 and March 1979. AO 0235+164 and 0735+178 both showed structures consisting of a very bright, unresolved core and a jet-like component extending ˜5".4 10-3 along position angle ˜20° and ˜4".2 10-3 along position angle ˜45°, respectively. AO 0235+164 contained more than 98% of the total flux density within a diameter of ≲ 36" 10-3. BL Lac, 1749+701 and Mk 421 all showed evidence for a complex structure of several components, including an unresolved core. 3 C 66A was elongated along position angle ˜ -45°.

Place, publisher, year, edition, pages
Les Ulis: EDP Sciences, 1981. Vol. 96, no 1-2, 316-324 p.
Keyword [en]
BL Lac objects, interferometry, VLBI, radio sources: general
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:hh:diva-22775OAI: oai:DiVA.org:hh-22775DiVA: diva2:629809
Note

Uppgifter om finansiärer finns. / JO 150817

Available from: 2013-06-17 Created: 2013-06-17 Last updated: 2015-08-17Bibliographically approved

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CiteExportLink to record
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