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Title: Search for Nova Presolar Grains: $γ$-Ray Spectroscopy of 34Ar and its Relevance for the Astrophysical 33Cl($p,γ$) Reaction

Abstract

The discovery of presolar grains in primitive meteorites has launched a new era of research in the study of stellar nucleosynthesis. However, the accurate classification of presolar grains as being of specific stellar origins is particularly challenging. Recently, it has been suggested that sulfur isotopic abundances may hold the key to definitively identifying presolar grains with being of nova origins and, in this regard, the astrophysical Cl 33 ( p , γ ) Ar 34 reaction is expected to play a decisive role. As such, we have performed a detailed γ -ray spectroscopy study of Ar 34 . Excitation energies have been measured with high precision and spin-parity assignments for resonant states, located above the proton threshold in Ar 34 , have been made for the first time. Uncertainties in the Cl 33 ( p , γ ) reaction have been dramatically reduced and the results indicate that a newly identified = 0 resonance at E r = 396.9 ( 13 ) keV dominates the entire rate for T = 0.25 0.40 GK . Furthermore, nova hydrodynamic simulations based on the present work indicate an ejected S 32 / S 33 abundance ratio distinctive from type-II supernovae and potentially compatible with recent measurements of a presolar grain.

Authors:
 [1];  [1];  [1];  [2];  [3];  [2];  [2];  [1];  [4];  [1];  [1];  [5];  [2];  [6];  [1];  [7];  [2];  [2];  [2];  [5] more »;  [8];  [2];  [2];  [9];  [2] « less
  1. Univ. of Surrey, Guildford (United Kingdom)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Simon Fraser Univ., Burnaby, BC (Canada)
  4. Louisiana State Univ., Baton Rouge, LA (United States)
  5. Univ. of Massachusetts, Lowell, MA (United States)
  6. Univ. of North Carolina, Chapel Hill, NC (United States); Duke Univ., Durham, NC (United States)
  7. Univ. Politècnica de Catalunya, Barcelona (Spain); Inst. d’Estudis Espacials de Catalunya (IEEC), Barcelona (Spain)
  8. Univ. of York (United Kingdom)
  9. Argonne National Lab. (ANL), Argonne, IL (United States); Louisiana State Univ., Baton Rouge, LA (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Argonne Tandem Linac Accelerator System (ATLAS); Univ. of North Carolina, Chapel Hill, NC (United States)
Sponsoring Org.:
Science and Technology Facilities Council (STFC); Natural Sciences and Engineering Research Council of Canada (NSERC); Spanish Ministerio de Economia y Competitividad (MINECO); European Union (EU); USDOE Office of Science (SC), Nuclear Physics (NP); AGAUR/Generalitat de Catalunya
OSTI Identifier:
1639447
Alternate Identifier(s):
OSTI ID: 1659276; OSTI ID: 1659278
Grant/Contract Number:  
AC02-06CH11357; FG02-94ER40834; FG02-97ER41041; FG02-97ER41033; FG02-94ER40848; SC0014231; AYA2017-86274-P; SGR-661/2017
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 124; Journal Issue: 25; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Kennington, A.  R. L., Lotay, G., Doherty, D. T., Seweryniak, D., Andreoiu, C., Auranen, K., Carpenter, M. P., Catford, W. N., Deibel, C. M., Hadyńska-Klęk, K., Hallam, S., Hoff, D. E. M., Huang, T., Janssens, R. V. F., Jazrawi, S., José, J., Kondev, F. G., Lauritsen, T., Li, J., Rogers, A. M., Saiz, J., Savard, G., Stolze, S., Wilson, G. L., and Zhu, S.. Search for Nova Presolar Grains: $γ$-Ray Spectroscopy of 34Ar and its Relevance for the Astrophysical 33Cl($p,γ$) Reaction. United States: N. p., 2020. Web. https://doi.org/10.1103/physrevlett.124.252702.
Kennington, A.  R. L., Lotay, G., Doherty, D. T., Seweryniak, D., Andreoiu, C., Auranen, K., Carpenter, M. P., Catford, W. N., Deibel, C. M., Hadyńska-Klęk, K., Hallam, S., Hoff, D. E. M., Huang, T., Janssens, R. V. F., Jazrawi, S., José, J., Kondev, F. G., Lauritsen, T., Li, J., Rogers, A. M., Saiz, J., Savard, G., Stolze, S., Wilson, G. L., & Zhu, S.. Search for Nova Presolar Grains: $γ$-Ray Spectroscopy of 34Ar and its Relevance for the Astrophysical 33Cl($p,γ$) Reaction. United States. https://doi.org/10.1103/physrevlett.124.252702
Kennington, A.  R. L., Lotay, G., Doherty, D. T., Seweryniak, D., Andreoiu, C., Auranen, K., Carpenter, M. P., Catford, W. N., Deibel, C. M., Hadyńska-Klęk, K., Hallam, S., Hoff, D. E. M., Huang, T., Janssens, R. V. F., Jazrawi, S., José, J., Kondev, F. G., Lauritsen, T., Li, J., Rogers, A. M., Saiz, J., Savard, G., Stolze, S., Wilson, G. L., and Zhu, S.. Fri . "Search for Nova Presolar Grains: $γ$-Ray Spectroscopy of 34Ar and its Relevance for the Astrophysical 33Cl($p,γ$) Reaction". United States. https://doi.org/10.1103/physrevlett.124.252702. https://www.osti.gov/servlets/purl/1639447.
@article{osti_1639447,
title = {Search for Nova Presolar Grains: $γ$-Ray Spectroscopy of 34Ar and its Relevance for the Astrophysical 33Cl($p,γ$) Reaction},
author = {Kennington, A.  R. L. and Lotay, G. and Doherty, D. T. and Seweryniak, D. and Andreoiu, C. and Auranen, K. and Carpenter, M. P. and Catford, W. N. and Deibel, C. M. and Hadyńska-Klęk, K. and Hallam, S. and Hoff, D. E. M. and Huang, T. and Janssens, R. V. F. and Jazrawi, S. and José, J. and Kondev, F. G. and Lauritsen, T. and Li, J. and Rogers, A. M. and Saiz, J. and Savard, G. and Stolze, S. and Wilson, G. L. and Zhu, S.},
abstractNote = {The discovery of presolar grains in primitive meteorites has launched a new era of research in the study of stellar nucleosynthesis. However, the accurate classification of presolar grains as being of specific stellar origins is particularly challenging. Recently, it has been suggested that sulfur isotopic abundances may hold the key to definitively identifying presolar grains with being of nova origins and, in this regard, the astrophysical Cl33(p,γ)Ar34 reaction is expected to play a decisive role. As such, we have performed a detailed γ-ray spectroscopy study of Ar34. Excitation energies have been measured with high precision and spin-parity assignments for resonant states, located above the proton threshold in Ar34, have been made for the first time. Uncertainties in the Cl33(p,γ) reaction have been dramatically reduced and the results indicate that a newly identified ℓ=0 resonance at Er=396.9(13) keV dominates the entire rate for T=0.25–0.40 GK. Furthermore, nova hydrodynamic simulations based on the present work indicate an ejected S32/S33 abundance ratio distinctive from type-II supernovae and potentially compatible with recent measurements of a presolar grain.},
doi = {10.1103/physrevlett.124.252702},
journal = {Physical Review Letters},
number = 25,
volume = 124,
place = {United States},
year = {2020},
month = {6}
}

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