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Title:
Low-frequency observations of the VELA supernova remnant and their implications
Authors:
Dwarakanath, K. S.
Affiliation:
AA(Raman Research Institute, Bangalore, India)
Publication:
Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 12, no. 3, Sept. 1991, p. 199-211.
Publication Date:
09/1991
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL SPECTROSCOPY, H ALPHA LINE, PULSARS, RADIO SOURCES (ASTRONOMY), SUPERNOVA REMNANTS, HEAO 2, LOW FREQUENCIES, RADIO ASTRONOMY, X RAY ASTRONOMY
DOI:
10.1007/BF02702878
Bibliographic Code:
1991JApA...12..199D

Abstract

Observations of the Vela SNR at 34.5 MHz are reported and improved spectral-index estimates are presented and discussed. The flux densities of Vela X and YZ at 34.5 MHz are estimated to be 1800 and 3900 Jy, respectively, and their spectral indices are estimated to be -0.16 +/- 0.02 and -0.53 +/- 0.03, respectively. The spectral index estimates, along with other known characteristics, strengthen the hypothesis that Vela X is a plerion, while Vela YZ is a typical shell-type SNR.

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