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Title:
The Interstellar Environment of Filled-Center Supernova Remnants. III. The Crab Nebula
Authors:
Wallace, B. J.; Landecker, T. L.; Kalberla, P. M. W.; Taylor, A. R.
Publication:
The Astrophysical Journal Supplement Series, Volume 124, Issue 1, pp. 181-193. (ApJS Homepage)
Publication Date:
09/1999
Origin:
UCP
ApJ Keywords:
ISM: BUBBLES, ISM: GENERAL, ISM: INDIVIDUAL: NAME: CRAB NEBULA, RADIO LINES: ISM, SUPERNOVA REMNANTS
DOI:
10.1086/313254
Bibliographic Code:
1999ApJS..124..181W

Abstract

The H I environment of the Crab Nebula is investigated using 2.75′ and 9' resolution data from the Dominion Radio Astrophysical Observatory Synthesis and Effelsberg 100 m Radio Telescopes, respectively. No clear evidence for an interaction between the Crab and the surrounding H I is found; the Crab probably lies within the boundaries of a large-scale, low-density void in the H I distribution. The presence of a wind-blown H I bubble near the Crab is confirmed, and it is suggested that the unidentified star that powers this bubble is responsible for the stellar wind material detected along the line of sight toward the Crab.

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