Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...349l..51r&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 349, Feb. 1, 1990, p. L51-L54.
Astronomy and Astrophysics
Astronomy
14
Crab Nebula, Pulsars, Stellar Evolution, Supernovae, Infrared Astronomy Satellite, Interstellar Matter, Stellar Envelopes, Stellar Winds, X Rays
Scientific paper
IRAS and 21 cm observations of the interstellar medium around the Crab nebula show evidence of a large bubble surrounded by a partial shell. If located at the canonical 2 kpc distance of the Crab pulsar, the shell is estimated to have a radius of about 90 pc and to contain about 50,000 solar masses of swept-up gas. The way in which interior conditions of this bubble can have important implications for observations of the Crab are described, and the fashion in which presupernova evolution of the pulsar progenitor has affected its local environment is described.
Heiles Carl
Koo Bon Chul
Reach William T.
Romani Roger W.
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