Work

Opacity in compact extragalactic radio sources and its effect on astrophysical and astrometric studies

Year: 2008

Type: article

Abstract: Context. The apparent position of the “core” in a parsec-scale radio jet (a compact, bright emitting region at the narrow end of the jet) depends on the observing frequency, owing to synchrotron self-absorption and external absorption. While providing a tool probing physical conditions in the vicinity of the core, this dependency poses problems for astrometric studies using compact radio sources.

Source: Astronomy and Astrophysics

DOI: 10.1051/0004-6361:20078679

Authors: Y. Y. Kovalev, A. P. Lobanov, A. B. Pushkarev, J. A. Zensus

Institutions: P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Astro Space Center, Max Planck Institute for Radio Astronomy, Pulkovo Observatory, Crimean Astrophysical Observatory

Language: English

Topic: Astrophysical Phenomena and Observations

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze