Multiple Explosion Models for the Local Bubble

Details Multiple Explosion Models for the Local Bubble Multiple Explosion Models for the Local Bubble

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.4409s&link_type=abstract

American Astronomical Society, 188th AAS Meeting, #44.09; Bulletin of the American Astronomical Society, Vol. 28, p.893

Astronomy and Astrophysics

Astronomy

Scientific paper

Observations of soft X-rays, as well as UV measurements, show that the sun is surrounded by a high temperature, low density, cavity. Models explaining this cavity as an old supernova remnant require extremely large supernova energies and high magnetic fields to confine the remnant. This work uses multiple supernova explosions, separated by ~ million years, to model the soft X-ray data from the Wisconsin survey. The calculations are done using ODIN, a 1-dimensional hydrocode using non-equilibrium collisional cooling and supporting multiple explosions with realistic initial conditions. Additionally, analytic calculations of the collapse of a supernova remnant or superbubble were done to focus the numerical work. When thermal conduction is included, the bubble collapse is self-similar, and the temperature structure can be described by a simple analytic function throughout.

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