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Modeling the Local Bubble Using Multiple Supernova Remnants

Published online by Cambridge University Press:  12 April 2016

R.K. Smith  and
D.P. Cox
R.K. Smith
Affiliation:
Laboratory for Astronomy and Solar Physics, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
D.P. Cox
Affiliation:
Department of Physics, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA

Abstract

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We have modeled the Local Bubble (LB) using a one-dimensional hydrocode (ODIN) that can simulate multiple supernova remnants, with non-equilibrium ion evolution and dust. Our model assumes that the local interstellar medium was a cool (104 K) gas approximately 5-10 Myr ago; it was then disturbed by 2 or 3 supernovae exploding within 20-30 pc of each other over a period of 2-4 million years. The LB is the leftover hot gas from these explosions. The model predicts the x-ray emission from such a bubble, as well as ionic abundances for hot gas ions such as O VI. These are compared to the soft x-ray data from the Wisconsin all-sky survey and the ROSAT PSPC.

Information

Type
Part III Observations and Modeling of the Local Bubble and the SXRB
Information
International Astronomical Union Colloquium , Volume 166: The Local Bubble and Beyond , 1997 , pp. 133 - 136
Copyright
Copyright © Springer-Verlag 1998

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