Hostname: page-component-848d4c4894-xfwgj Total loading time: 0 Render date: 2024-06-19T00:20:02.039Z Has data issue: false hasContentIssue false
  • English
  • Français

Milliarcsecond Structure of the Faraday Effects in 3C 147: “The CSS Prototype with Highest Rotation Measure” (Which Is Not)

Published online by Cambridge University Press:  12 April 2016

E. Lüdke ,
W. D. Cotton ,
H. S. Sanghera  and
D. Dallacasa
E. Lüdke
Affiliation:
UFSM-CCNE and LACESM-CT, Campus Universitário, 97119-900 Santa Maria RS, Brazil
W. D. Cotton
Affiliation:
National Radio Astronomy Observatory, Charlottesville, VA 22903, U.S.A.
H. S. Sanghera
Affiliation:
Joint Institute for VLBI in Europe, 7990 AA Dwingeloo, The Netherlands
D. Dallacasa
Affiliation:
Istituto di Radioastronomia CNR, I-40126 Bologna, Italy

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We analyze polarization observations of 3C 147 at milliarcsecond scale which we have made with the VLBA at L, S, and C band and with the MERLIN array at K band. Several constraints placed by the observations on the physical conditions of the magnetoionic gas which produces the Faraday rotation are briefly discussed. Our data show that the Faraday rotation increases towards the VLBI core component with a maximum observed value of RM~ 4600±80 rad m−2. Such a value does not support the inclusion of 3C 147 as a source with exceedingly-high faraday rotation (SEFR), as suggested from published low-resolution observations.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 164: Radio Emission from Galactic and Extragalactic Compact Sources , 1998 , pp. 185 - 186
Copyright
Copyright © Astronomical Society of the Pacific 1998

References

Inoue, M., et al. 1995. PASJ, 47, 725–737.Google Scholar
Kato, T., et al. 1987. Nature, 329, 223–224.CrossRefGoogle Scholar
Lüdke, E., et al. 1997, MNRAS, accepted.Google Scholar
Taylor, G.B., et al. 1990. ApJ, 260, 41–54.Google Scholar
Taylor, G.B., Inoue, M., Tabara, H. 1992. A&A, 264, 421–427.Google Scholar