The microarcsecond structure of 3C 273 at 3 MMShow others and affiliations
1991 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 241, no 1, p. L1-L4Article in journal (Refereed) Published
Abstract [en]
Recent improvements in data analysis and receiver techniques have allowed us to produce a map of the 100GHz emission from the compact radio source 3C273 with the unsurpassed resolution of 50-mu-as (microarcseconds). Our map shows that the structure within 300-mu-as (approximately 1.5.10(18).h-1 cm) has a position angle significantly different from the position angle of the jet observed at lower frequencies. There are also indications in our map that the inner structure has a more pronounced wiggling structure than has been observed on larger scales. The observations were made about 60 days from the start of the outburst of 1988. Most of the flux from the outburst is concentrated in a component which is elongated approximately (56 x 5).10(16).h-1 cm perpendicular to the overall jet-axis. The distance between this component and the core is approximately 128-mu-as, which corresponds to the distance expected from an apparent velocity of approximately 800-mu-as year-1.
Place, publisher, year, edition, pages
Les Ulis: EDP Sciences, 1991. Vol. 241, no 1, p. L1-L4
Keywords [en]
radio galaxies, jets, hot spots, shocks, magnetic fields, relativity
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:hh:diva-22819ISI: A1991ET95500001OAI: oai:DiVA.org:hh-22819DiVA, id: diva2:629873
2013-06-172013-06-172017-12-06Bibliographically approved