The GUM Nebula - an old supernova remnant ionized by Zeta Puppis and Gamma Velorum

Details The GUM Nebula - an old supernova remnant ionized by Zeta Puppis and Gamma Velorum The GUM Nebula - an old supernova remnant ionized by Zeta Puppis and Gamma Velorum

Jun 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...206..679r&link_type=abstract

Astrophysical Journal, vol. 206, June 15, 1976, pt. 1, p. 679-684.

Astronomy and Astrophysics

Astrophysics

62

Gas Expansion, Interstellar Matter, Nebulae, Supernova Remnants, Gas Explosions, Interstellar Gas, Photoionization, Stellar Winds, Ultraviolet Radiation

Scientific paper

A comparison between observations of the Gum Nebula and Chevalier's (1974) model for an evolving supernova remnant suggests that the Gum Nebula may be a 1-million-year-old expanding gas shell which was produced by an explosion with energy of 5 by 10 to the 51st power ergs in a medium of density 0.25 per cu cm and which is now being heated and ionized by the ultraviolet flux from Zeta Pup and Gamma-2 Vel. The stellar wind from Zeta Pup may also be an important energy source within the nebula.

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