Supernovae and molecular clouds

Details Supernovae and molecular clouds Supernovae and molecular clouds

Aug 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977natur.268..706w&link_type=abstract

Nature, vol. 268, Aug. 25, 1977, p. 706, 707. NSF-supported research.

Physics

9

Interstellar Gas, Stellar Envelopes, Stellar Evolution, Stellar Mass Ejection, Supernovae, Adiabatic Conditions, Carbon Monoxide, Gas Density, Hydrogen Clouds, Stellar Models

Scientific paper

Hypotheses related to the sites of explosive nucleosynthesis in the galaxy and the dissolution of molecular clouds are formulated. In particular, it is suggested that in stellar systems, stars of mass greater than a specified critical value do not evolve to an explosive stage, while the largest star of mass below the critical value, upon reaching the supernova phase, dissipates the surrounding dense molecular cloud. Observations of CO emission from clusters are used to derive a value for the critical mass approximating the mass of BO-spectral type star (i.e., 15 to 20 times the mass of the sun). A mechanism that would account for the disruption of molecular clouds by supernovae is described; estimates of the resultant fluxes and timescales involved are also given.

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