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Title:
Polarized radio filaments in the VELA X supernova remnant
Authors:
Milne, D. K.
Affiliation:
AA(Australia Telescope National Facility, CSIRO, PO Box 76 Epping, NSW 2121, Australia )
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 277, Issue 4, pp. 1435-1442. (MNRAS Homepage)
Publication Date:
12/1995
Origin:
MNRAS; KNUDSEN
MNRAS Keywords:
MAGNETIC FIELDS, POLARIZATION, ISM: INDIVIDUAL: VELA SNR, SUPERNOVA REMNANTS, RADIO CONTINUUM: ISM
Bibliographic Code:
1995MNRAS.277.1435M

Abstract

The radio-bright Vela X component of the Vela supernova remnant (SNR) was mapped in total intensity and in polarization at 8.4 GHz with 3-arcmin resolution. Prominent filamentary structure (unrelated to the optical filaments) is seen in the polarization image and to a lesser extent in total intensity. The filaments are highly polarized, with magnetic fields directed along the filaments. They have moderate Faraday rotation (mean RM ~44 rad m^-2) and the little depolarization. Comparison with data at 5 and 2.7 GHz suggests that the overall spectral index is typical of a SNR and relatively uniform throughout the region.

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