Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...259..607s&link_type=abstract
Astrophysical Journal, Part 1, vol. 259, Aug. 15, 1982, p. 607-616.
Astronomy and Astrophysics
Astrophysics
11
Gas Ionization, Globular Clusters, H Ii Regions, Interstellar Chemistry, Protostars, Star Formation, Astronomical Models, B Stars, Density Distribution, O Stars, Open Clusters, Supermassive Stars, Supernovae
Scientific paper
The shapes of the H II Stroemgren 'spheres' produced by stars located within massive gas clouds are determined by solving the equation of ionization equilibrium. The cloud is taken to be spherical, with an r exp -2 internal density distribution. The minimum distance that a star can be situated from the cloud center and still ionize gas out to the surface has been calculated, as well as the solid angle subtended by such H II regions at the cloud center. It is concluded that bright OB stars can form quite deep within the interiors of open cluster gas clouds and still ionize a large fraction of them. Globular cluster protoclouds are not susceptible to this form of disruption provided that they were more massive than their stellar progeny. The requirement for a greater initial gas mass is particularly stringent if the first generation of stars were supermassive (approximately 500 solar masses).
No associations
LandOfFree
The role of H II regions during star formation and chemical enrichment in globular clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The role of H II regions during star formation and chemical enrichment in globular clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The role of H II regions during star formation and chemical enrichment in globular clusters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-899813