Accession Number : AD0671151

Title :   ONE-DIMENSIONAL POLARIZATION DISTRIBUTIONS OVER FOUR SUPERNOVA REMNANTS AT 1418 MHZ,

Corporate Author : CALIFORNIA INST OF TECH PASADENA OWENS VALLEY RADIO OBSERVATORY

Personal Author(s) : Seielstad,G. A. ; Weiler,K. W.

Report Date : 1968

Pagination or Media Count : 28

Abstract : Distributions of the linearly polarized radiation at a frequency of 1418 MHz from the four supernova remnants 3C 10 (Tycho's supernova), Taurus A (Crab Nebula), 3C358 (Kepler's supernova), and Cassiopeia A have been determined by synthesizing a fan beam whose small dimension is along a circle of constant declination. In addition, extremely low upper limits have been placed on the net degree of circular polarization in the integrated radiation from Tau A, 3C358, and Cas A. For the latter two sources, no smaller circularly polarized regions were found within the source dimensions using a resolution of better than 1'. Upper limits to the magnetic field strengths, modified by geometrical factors have also been calculated. (Author)

Descriptors :   (*RADIO ASTRONOMY, *SUPERNOVAE), ULTRAHIGH FREQUENCY, MAGNETIC FIELDS, POLARIZATION, DISTRIBUTION, VISIBILITY, NOISE(RADIO), SOURCES, FOURIER ANALYSIS, INTEGRAL TRANSFORMS, DENSITY

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE