EPJ Web Conf.
Volume 260, 2022The 16th International Symposium on Nuclei in the Cosmos (NIC-XVI)
|Number of page(s)||5|
|Published online||24 February 2022|
Sensitivity Study of Type-I X-ray Bursts to Nuclear Reaction Rates
1 Department of Physics, Central Michigan University, Mount Pleasant, MI 48859, USA
2 National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
3 JINA Center for the Evolution of the Elements, Michigan State University, East Lansing, MI 48824, USA
4 Department of Physics and Astronomy, Clemson University, Clemson, SC 29634-0978, USA
* e-mail: firstname.lastname@example.org
Published online: 24 February 2022
Type-I X-ray bursts are frequently occurring thermonuclear runaways on the surface of an accreting neutron star. The different nuclear reactions that empower the cataclysmic event play a key role in accurately comparing theoretical models and observations. We investigate the effect of the uncertainties in the nuclear reactions using a ONEZONE model for a set of different compositions and accretion rates that are within the range of the standard observed burst sources. A combination of a full-reaction network and a semi-analytic model is used to obtain the conditions at the time of X-ray burst ignition via simulating the settling process of the accreted material. We then evaluate the sensitivity of the X-ray burst model by varying the proton and alpha-induced reaction rates in JINA REACLIBV2.2 within representative nuclear physics uncertainties.
© The Authors, published by EDP Sciences, 2022
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