Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2345..297e&link_type=abstract
In NASA. Goddard Space Flight Center Local Interstellar Medium, No. 81 p 297-300 (SEE N85-15539 06-90)
Astronomy and Astrophysics
Astronomy
2
Blast Loads, Celestial Sphere, Shock Waves, Supernovae, X Ray Astronomy, Astronomical Models, Celestial Mechanics, Coulomb Potential, Solar System, Stellar Mass Ejection, Thermal Conductivity
Scientific paper
The suggestion that the soft X-ray background arises in part from the Sun being inside a large (R ≡ 100 pc) supernova blastwave is examined by producing models of spherical blastwaves. Such models can produce quantitative fits to both surface brightness and energy band ratios (for the lowest energy bands) when t ≡ 105yr, E0 = 5×1050ergs, and n0 ≅ 0.004 cm-3. Such models can be generalized by varying the relative importance of such factors as thermal conduction, Coulomb heating of electrons, and external pressure; by allowing the explosions to occur in pre-existing cavities with steep density gradients, or by examining the effects of large obstructions or other anisotropies in the ambient medium.
Cox Donald P.
Edgar Richard J.
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