108 citations · 1.3k across the 32 of their papers we have counts for
32 papers
Experimental Constraint on Stellar Electron-Capture Rates from the reaction at 115 MeV/u
J. C. Zamora, R. G. T. Zegers, Sam M. Austin +22
The Gamow-Teller strength distribution from Sr was extracted from a experiment at 115 MeV/ to constrain estimates for the electron-capture rates…
Enhancement of the Triple Alpha Rate in a Hot Dense Medium
Mary Beard, Sam M. Austin, Richard Cyburt
In a sufficiently hot and dense astrophysical environment the rate of the triple-alpha (3alpha) reaction can increase greatly over the value appropriate for helium burning stars ow…
Reducing Uncertainties in the Production of the Gamma Emitting Nuclei 26Al, 44Ti, and 60Fe in Core Collapse Supernovae by Using Effective Helium Burning Rates
Sam Austin, Christopher West, Alexander Heger
We have used effective reaction rates (ERR) for the helium burning reactions to predict the yield of the gamma-emitting nuclei 26Al, 44Ti, and 60Fe in core col- lapse supernovae. T…
The Sensitivity of Core-Collapse Supernovae to Nuclear Electron Capture
Chris Sullivan, Evan O'Connor, Remco G. T. Zegers +2
A weak-rate library aimed at investigating the sensitivity of astrophysical environments to variations of electron-capture rates on medium-heavy nuclei has been developed. With thi…
Effective Helium Burning Rates and the Production of the Neutrino Nuclei
Sam M. Austin, Christopher West, Alexander Heger
Effective values for the key helium burning reaction rates, triple-alpha and 12C(alpha,gamma)16O, are obtained by adjusting their strengths so as to obtain the best match with the…
The Impact of Helium-Burning Reaction Rates on Massive Star Evolution and Nucleosynthesis
Christopher West, Alexander Heger, Sam M. Austin
We study the sensitivity of presupernova evolution and supernova nucleosynthesis yields of massive stars to variations of the helium-burning reaction rates within the range of thei…