Towards an Experimental Determination of the Transition Strength Between the Ground States of ${}^{20}$F and ${}^{20}$Ne

Abstract

Electron capture on ${}^{20}$Ne is thought to play a crucial role in the final evolution of electron-degenerate ONe stellar cores. Recent calculations suggest that the capture process is dominated by the second-forbidden transition between the ground states of ${}^{20}$Ne and ${}^{20}$F, making an experimental determination of this transition strength highly desirable. To accomplish this task we are refurbishing an intermediate-image magnetic spectrometer capable of focusing 7 MeV electrons, and designing a scintillator detector surrounded by an active cosmic-ray veto shield, which will serve as an energy-dispersive device at the focal plane.

arXiv comment4 pages, 1 figure, NIC-XIV

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Cited by in corpus (1)

• The Importance of Urca-process Cooling in Accreting ONe White Dwarfs