Abstract
The mass of one of the three major waiting points in the astrophysical process was measured for the first time with the Penning trap mass spectrometer ISOLTRAP. The measurement yielded a relative mass uncertainty of (). , also needed for astrophysical calculations, were measured with more than 1 order of magnitude improved accuracy. We use the ISOLTRAP masses of to reanalyze the role of () in the process during x-ray bursts and conclude that is a strong waiting point delaying the burst duration with at least 80% of its -decay half-life.
- Received 19 June 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.161104
©2004 American Physical Society