Cross-section measurements to low-lying excited final states in the Mg24(α,p)Al*27(γ) reaction as an energy source for x-ray bursts

T. Ahn, S. Aguilar, R. J. deBoer, D. W. Bardayan, A. Boeltzig, C. R. Brune, S. P. Burcher, K. Y. Chae, S. L. Henderson, R. K. Grzywacz, K. L. Jones, J. M. Kovoor, K. T. Macon, K. Manukyan, S. Mosby, P. D. O'Malley, M. Renaud, K. Smith, C. Thornsberry, B. Vande Kolk, and M. Wiescher
Phys. Rev. C 102, 035805 – Published 22 September 2020

Abstract

Energy production in Type Ia x-ray bursts depends on a number of nuclear reactions that become efficient in a hot environment (up to 2 GK). Model sensitivity studies have been performed in an effort to better identify the reactions that have the largest effect, but these efforts are hampered by the high level of complexity of the astrophysical model and large nuclear physics uncertainties. In a recent study, the Mg24(α,p)Al27 reaction was found to significantly affect the energy generation in x-ray bursts. This manuscript reports the first study of the Mg24(α,p1,2γ)Al27 reaction at energies relevant for x-ray bursts. The branches to the Al27 excited states increase to a small degree the estimates of the total astrophysical Mg24(α,p)Al27 reaction rate.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
1 More
  • Received 19 December 2019
  • Accepted 25 August 2020

DOI:https://doi.org/10.1103/PhysRevC.102.035805

©2020 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

T. Ahn1,2,*, S. Aguilar1,2, R. J. deBoer1,2, D. W. Bardayan1,2, A. Boeltzig1,2, C. R. Brune3, S. P. Burcher4, K. Y. Chae5, S. L. Henderson1,2, R. K. Grzywacz4, K. L. Jones4, J. M. Kovoor4, K. T. Macon1,2, K. Manukyan1, S. Mosby6, P. D. O'Malley1, M. Renaud1,7, K. Smith4,†, C. Thornsberry4, B. Vande Kolk1,2, and M. Wiescher1,2

  • 1Physics Department, University of Notre Dame, 225 Nieuwland Science Hall, Notre Dame, Indiana 46556, USA
  • 2The Joint Institute for Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556, USA
  • 3Edwards Accelerator Laboratory, Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
  • 4Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
  • 5Department of Physics, Sunkyunkwan University, Suwon 16419, South Korea
  • 6LANSCE Weapons Physics (P-27), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
  • 7KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium

  • *Corresponding author: tan.ahn@nd.edu
  • Present address: Los Alamos National Laboratory, Los Alamos, NM 87545, USA.

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 102, Iss. 3 — September 2020

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×