Document Type
Article
Publication Date
5-21-2025
Abstract
We performed astrophysics model calculations with updated nuclear data to identify a possible bypass of the 64Ge waiting point, a defining feature of the rapid proton capture (rp) process that powers type I X-ray bursts on accreting neutron stars. We find that the rp-process flow through the 64Ge bypass could be up to 36% for astrophysically relevant conditions. Our results call for new studies of 65Se, including the nuclear mass, β-delayed proton emission branching, and nuclear structure as it pertains to the 64As(p, γ) reaction rate at X-ray burst temperatures.
Source Publication
The Astrophysical Journal (ISSN 0004-637X, 1538-4357)
Recommended Citation
Meisel, Z., Ong, W.-J., & Randhawa, J. S. (2025). Enhanced Nuclear Binding near the Proton Drip Line Opens Possible Bypass of the64 Ge Rapid Proton Capture Process Waiting Point. The Astrophysical Journal, 985(2), 153. https://doi.org/10.3847/1538-4357/add260
Comments
© 2025. The Authors.
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