Milli-arcsecond scale Rotation Measure in the CSS Quasars 0548+165 and 1524-136

Preprint

20 March 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0203338

Abstract

Two Compact Steep-spectrum Sources (CSSs), 0548+165 and 1524-136, chosen from a list of CSSs with polarization percentages that decrease with decreasing frequency and high rotation measure values (RM > 450 rad/m**2) on arcsecond scales, were observed with the VLBA at 4.9 and 8.4 GHz. RM values up to ~10**4 rad/m**2 were found in several regions along the jets in both sources. We suggest that a thin screen of magneto-ionic material with about 1 kpc thickness is responsible for these high RMs. The observed depolarization may be due to beam depolarization and/or inhomogeneities in the magnetic field.

Keywords

ROTATION MEASURE
MILLI ARCSECOND
ARCSECOND SCALE
DEPOLARIZATION
CSS QUASARS
QUASARS
CSSS

All Related Versions

Version 1, 2002-03-20, ArXiv
Published version: Astronomy & Astrophysics, 389 (1), 58.

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