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Title:
Resolution of the filaments in the supernova remnant IC 443
Authors:
Dickel, John R.; Williamson, Christopher E.; Mufson, Stuart L.; Wood, Craig A.
Affiliation:
AA(Illinois, University, Urbana), AB(Illinois, University, Urbana), AC(Indiana University, Bloomington), AD(Indiana University, Bloomington)
Publication:
Astronomical Journal (ISSN 0004-6256), vol. 98, Oct. 1989, p. 1363-1367. Research supported by the University of Illinois. (AJ Homepage)
Publication Date:
10/1989
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL SPECTROSCOPY, RADIO SOURCES (ASTRONOMY), STELLAR STRUCTURE, SUPERNOVA REMNANTS, FILAMENTS, H ALPHA LINE, SPECTRAL RESOLUTION, WAVE PROPAGATION
DOI:
10.1086/115221
Bibliographic Code:
1989AJ.....98.1363D

Abstract

The visible filaments in IC 443 have been resolved at both radio and optical wavelengths. They appear to have coextensive widths of approximately 4.4 arcsec or about 10 to the 17th cm if the SNR lies at the generally adopted distance of 1.5 kpc. The observations are consistent with a picture in which the filaments are cooling and evaporating interstellar clumps which have been overrun by the expanding supernova blast wave.

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