view Abstract Citations (20) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Models of Massive Pure Hydrogen Stars. Ezer, Dilhan Abstract If our galaxy was initially composed of pure hydrogen, then the first stages of element formation would take place in massive stars condensing from such a medium. "Main-sequence" models have been constructed for pure hydrogen stars ranging in mass from 1 to 2000 M0. It was found that there is a remarkably high average density in such models and that convection takes place in their cores. However, most of the models are purely formal ones, since appreciable helium formation takes place before such stars have fully contracted toward the main sequence. In stars of mass greater than about 26 M0, sufficient C12 will form from this initial helium to alter the main-sequence structure through energy generation by the carbon cycle. Publication: The Astrophysical Journal Pub Date: January 1961 DOI: 10.1086/147012 Bibcode: 1961ApJ...133..159E full text sources ADS |