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7 papers · 1 filter
The Impact of Uncertainties in Reaction Q-values on Nucleosynthesis in Type I X-Ray Bursts
A. Parikh, J. Jose, C. Iliadis +2
Nucleosynthesis in Type I X-ray bursts may involve up to several thousand nuclear processes. The majority of these processes have only been determined theoretically due to the lack…
The Sensitivity of Nucleosynthesis in Type I X-ray Bursts to Thermonuclear Reaction-Rate Variations
Anuj Parikh, Jordi Jose, Fermin Moreno +1
We examine the sensitivity of nucleosynthesis in Type I X-ray bursts to variations in nuclear rates. As a large number of nuclear processes are involved in these phenomena -with th…
New reaction rate for 16O(p,gamma)17F and its influence on the oxygen isotopic ratios in massive AGB stars
C. Iliadis, C. Angulo, P. Descouvemont +2
The 16O(p,gamma)17F reaction rate is revisited with special emphasis on the stellar temperature range of T=60-100 MK important for hot bottom burning in asymptotic giant branch (AG…
The Effects of Variations in Nuclear Processes on Type I X-Ray Burst Nucleosynthesis
Anuj Parikh, Jordi Jose, Fermin Moreno +1
Type I X-ray bursts are violent stellar events that take place on the H/He-rich envelopes of accreting neutron stars. We have investigated the role played by uncertainties in nucle…
Reaction rate uncertainties and the operation of the NeNa and MgAl chains during HBB in intermediate-mass AGB stars
R. G. Izzard, M. Lugaro, A. I. Karakas +2
We test the effect of proton-capture reaction rate uncertainties on the abundances of the Ne, Na, Mg and Al isotopes processed by the NeNa and MgAl chains during hot bottom burning…
The Uncertainties in the 22Ne + alpha-capture Reaction Rates and the Production of the Heavy Magnesium Isotopes in Asymptotic Giant Branch Stars of Intermediate Mass
A. Karakas, M. Lugaro, M. Wiescher +2
We present new rates for the 22Ne(alpha, n)25Mg and 22Ne(alpha,gamma)26Mg reactions, with uncertainties that have been considerably reduced compared to previous estimates, and we s…