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Titlebook: Supernovae: A Survey of Current Research; Proceedings of the N Martin J. Rees,Ray J. Stoneham Conference proceedings 1982 D. Reidel Publish

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The Boundary between Explosion and Collapse in Very Massive Objectsy, oxygen and silicon burning, and alpha quenching on a global effective potential allow us to predict the critical oxygen core mass for black hole formation, M., and the abundance ratio of oxygen burning products to oxygen in those VMOs that explode. We find M. ~ 10.M., corresponding to an initial
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Automated Supernova Searchto pick up SN at 15th and 16th mag. The digitally controlled telescope and imaging system are remote from the on-campus (mini) computer, a Prime 300. The most innovative aspect of the current project is the use of a multi-user virtual memory operating system modified to do multi-tasking (search task
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Type II Supernovae Photospheres and Distances features to be expected. It is found that if the contribution of scattering to the opacity is greater than that of true absorption (as seems likely), the flux is diluted, which tends to increase the derived value of the Hubble constant. Fortunately, it appears that the Balmer jump may be a sensitive indicator of this opacity ratio.
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