Detection of an expanding H I shell in the old supernova remnant CTB 80

Details Detection of an expanding H I shell in the old supernova remnant CTB 80 Detection of an expanding H I shell in the old supernova remnant CTB 80

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...364..178k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 364, Nov. 20, 1990, p. 178-186. Research supported by NSF and NASA.

Astronomy and Astrophysics

Astronomy

34

H I Regions, Radio Sources (Astronomy), Stellar Envelopes, Supernova Remnants, Brightness Distribution, Carbon Monoxide, Interstellar Magnetic Fields, Molecular Gases

Scientific paper

An expanding H I shell associated with the SNR CTB 80 has been detected. The expansion velocity and size indicate that the H I shell is an SNR shell. The center, shape, and mass of the shell match those of the IR shell detected by Fesen et al. (1988), supporting the idea that the pulsar has caught up with the SW portion of the shell and has produced its peculiar radio morphology. The shell's large 60 to 100 micron ratio implies that the larger grains may have been preferentially destroyed by the shock.

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