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Title:
An X-ray image of Tycho's supernova remnant
Authors:
Reid, P. B.; Becker, R. H.; Long, K. S.
Affiliation:
AA(Columbia University, New York, NY), AB(Columbia University, New York, NY), AC(Columbia University, New York, NY)
Publication:
Astrophysical Journal, Part 1, vol. 261, Oct. 15, 1982, p. 485-491. (ApJ Homepage)
Publication Date:
10/1982
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
HEAO 2, NEBULAE, SUPERNOVA REMNANTS, X RAY SOURCES, BRIGHTNESS DISTRIBUTION, MASS DISTRIBUTION, RADIANT FLUX DENSITY, RADIO SOURCES (ASTRONOMY)
Comment:
A&AA ID. AAA032.125.074
DOI:
10.1086/160359
Bibliographic Code:
1982ApJ...261..485R

Abstract

An image of Tycho's SNR has been obtained using the imaging proportional counter aboard the Einstein Observatory, revealing a nearly circular, 8 arcmin, open shell of emission. The X-ray and radio shells are spatially coincident, although there is no correlation in intensity between the two wavelengths. Adopting a distance of 3 kpc, a 0.15-4.5 keV luminosity of 5 x 10 to the 36th ergs/sec is inferred. The mass of the X-ray emitting material is 7-15 solar masses if the SNR is in the adiabatic stage of its evolution. This is consistent with the interpretation that the SNR was the result of a Type I explosion and that the distance to Tycho's SNR is between 2.2 and 4.3 kpc.

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