Computer Science – Numerical Analysis
Scientific paper
Oct 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975a%26a....43..323f&link_type=abstract
Astronomy and Astrophysics, vol. 43, no. 3, Oct. 1975, p. 323-336.
Computer Science
Numerical Analysis
58
Interstellar Gas, Interstellar Magnetic Fields, Nebulae, Stellar Mass Ejection, Stellar Winds, Gas Cooling, H Ii Regions, H Lines, Magnetic Effects, Mass Distribution, Numerical Analysis, Shock Waves
Scientific paper
The effect of a strong stellar wind on the interstellar medium is investigated numerically. It is found that this mechanism can produce the high velocities observed in H II regions provided the density is not greater than 100 protons/cc. The rapid cooling of the gas after it has been heated by a strong shock is found to produce secondary shocks in some cases. These shocks may have interesting observational consequences. The effect of a magnetic field is considered and it is shown that it will have little effect on the overall shape of the nebula. It will, however, reduce the strength of the secondary shocks.
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