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The GUM Nebula: Fossil STRÖMGREN Sphere of the VELA X Supernova
The Astrophysical Journal1971Vol. 163, pp. L99–L99
Citations Over TimeTop 10% of 1971 papers
Abstract
A physical model for the Gum Nebula is derived from dispersion measures of pulsars, the nebular Ha emission measure, rocket observations of the La absorption in the spectra of 2 Vel and Pup, and photometry of stars near 2 Vel. The objects 2 Vel and Pup are not capable of ionizing the nebula. We suggest that the nebula was produced by radiation from the supernova outburst that gave rise to the Vela X remnant and pulsar PSR 0833-45.
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