Colliding ionization fronts. I - Ionized shells in H II regions

Details Colliding ionization fronts. I - Ionized shells in H II regions Colliding ionization fronts. I - Ionized shells in H II regions

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....61..189t&link_type=abstract

Astronomy and Astrophysics, vol. 61, no. 2, Oct. 1977, p. 189-194.

Astronomy and Astrophysics

Astrophysics

5

Gas Ionization, H Ii Regions, Shock Fronts, Stellar Evolution, Astronomical Models, Gas Dynamics, Hydrogen Ions

Scientific paper

The gasdynamical effects produced by the subsequent formation of stars within and around H II regions are studied. The evolution of ionization fronts and their interaction with shock waves and other ionization fronts are followed numerically. The appearance of dense ionized shells (or filaments) in H II regions is explained as a natural consequence of these interactions. Estimates of the total emission measure from the H II region at different times of the evolution are given along with typical values of the expected velocity dispersion within the flow.

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