Excited states of and their significance in nova nucleosynthesis
Abstract
Background: We report that discrepancies exist between the observed abundances of argon and calcium in oxygen-neon nova ejecta and those predicted by nova models. An improved characterization of the 38K(p,γ) 39Ca reaction rate over the nova temperature regime (~ 0.1-0.4 GK), and thus the nuclear structure of 39Ca above the proton threshold (5770.92(63) keV), is necessary to resolve these contradictions. Purpose: The present study was performed to search for low-spin proton resonances in the 38K + p system, and to improve the uncertainties in energies of the known astrophysically significant proton resonances in 39Ca. Methods: The level structure of 39Ca was investigated via high-resolution charged-particle spectroscopy with an Enge split-pole spectrograph using the 40Ca(3He, α) 39Ca reaction. Differential cross sections were measured over 6 laboratory angles at 21 MeV. Distorted-wave Born approximation calculations were performed to constrain the spin-parity assignments of observed levels with special attention to those significant in determination of the 38K(p,γ) 39Ca reaction rate over the nova temperature regime. Results: The resonance energies corresponding to two out of three astrophysically important states at 6154(5) and 6472.2(24) keV are measured with better precision than previous charged-particle spectroscopy measurements. A tentatively new state is discovered at 5908(3) keV. Themore »
- Authors:
-
- North Carolina State Univ., Raleigh, NC (United States). Department of Physics; Duke Univ., Durham, NC (United States). Triangle Universities Nuclear Laboratory
- McMaster Univ., Hamilton, ON (Canada). Department of Physics & Astronomy
- Publication Date:
- Research Org.:
- North Carolina State University, Raleigh, NC (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1483394
- Alternate Identifier(s):
- OSTI ID: 1492152
- Grant/Contract Number:
- SC0017799; FG02-97ER41041
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 98; Journal Issue: 5; Journal ID: ISSN 2469-9985
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
Setoodehnia, K., Marshall, C., Kelley, J. H., Liang, J., Portillo Chaves, F., and Longland, R. Excited states of Ca39 and their significance in nova nucleosynthesis. United States: N. p., 2018.
Web. doi:10.1103/PhysRevC.98.055804.
Setoodehnia, K., Marshall, C., Kelley, J. H., Liang, J., Portillo Chaves, F., & Longland, R. Excited states of Ca39 and their significance in nova nucleosynthesis. United States. https://doi.org/10.1103/PhysRevC.98.055804
Setoodehnia, K., Marshall, C., Kelley, J. H., Liang, J., Portillo Chaves, F., and Longland, R. Mon .
"Excited states of Ca39 and their significance in nova nucleosynthesis". United States. https://doi.org/10.1103/PhysRevC.98.055804. https://www.osti.gov/servlets/purl/1483394.
@article{osti_1483394,
title = {Excited states of Ca39 and their significance in nova nucleosynthesis},
author = {Setoodehnia, K. and Marshall, C. and Kelley, J. H. and Liang, J. and Portillo Chaves, F. and Longland, R.},
abstractNote = {Background: We report that discrepancies exist between the observed abundances of argon and calcium in oxygen-neon nova ejecta and those predicted by nova models. An improved characterization of the 38K(p,γ) 39Ca reaction rate over the nova temperature regime (~ 0.1-0.4 GK), and thus the nuclear structure of 39Ca above the proton threshold (5770.92(63) keV), is necessary to resolve these contradictions. Purpose: The present study was performed to search for low-spin proton resonances in the 38K + p system, and to improve the uncertainties in energies of the known astrophysically significant proton resonances in 39Ca. Methods: The level structure of 39Ca was investigated via high-resolution charged-particle spectroscopy with an Enge split-pole spectrograph using the 40Ca(3He, α) 39Ca reaction. Differential cross sections were measured over 6 laboratory angles at 21 MeV. Distorted-wave Born approximation calculations were performed to constrain the spin-parity assignments of observed levels with special attention to those significant in determination of the 38K(p,γ) 39Ca reaction rate over the nova temperature regime. Results: The resonance energies corresponding to two out of three astrophysically important states at 6154(5) and 6472.2(24) keV are measured with better precision than previous charged-particle spectroscopy measurements. A tentatively new state is discovered at 5908(3) keV. The spin-parity assignments of a few of the astrophysically important resonances are determined. Conclusions: Lastly, the present 38K(p,γ) 39Ca upper limit thermonuclear reaction rate at 0.1-0.4 GK is higher than that determined in [Physical Review C 97 (2018) 025802] by at most a factor of 1.4 at 0.1 GK.},
doi = {10.1103/PhysRevC.98.055804},
journal = {Physical Review C},
number = 5,
volume = 98,
place = {United States},
year = {Mon Nov 26 00:00:00 EST 2018},
month = {Mon Nov 26 00:00:00 EST 2018}
}
Web of Science
Works referenced in this record:
Nuclear Data Sheets for A = 27
journal, August 2011
- Shamsuzzoha Basunia, M.
- Nuclear Data Sheets, Vol. 112, Issue 8
The ground state of 40Ca and the reactions 40Ca(3He, α)39Ca, 42Ca(3He, α)41Ca and 40Ca(3He, d)41Sc
journal, August 1965
- Bock, R.; Duhm, H. H.; Stock, R.
- Physics Letters, Vol. 18, Issue 1
The TUNL Enge Split-Pole Spectrograph: a Facility Entirely Dedicated to Nuclear Astrophysics
conference, February 2017
- Setoodehnia, Kiana; Longland, Richard; Marshall, Caleb
- Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016)
Three-dimensional simulations of the interaction between the nova ejecta, accretion disk, and companion star
journal, May 2018
- Figueira, Joana; José, Jordi; García-Berro, Enrique
- Astronomy & Astrophysics, Vol. 613
Coupled reaction channels calculations in nuclear physics
journal, April 1988
- Thompson, Ian J.
- Computer Physics Reports, Vol. 7, Issue 4
Stellar Explosions: Hydrodynamics and Nucleosynthesis
book, January 2015
- Jose, Jordi
- Series in Astronomy and Astrophysics
Nucleosynthesis in Novae
conference, February 2017
- José, Jordi
- Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016)
The quasihole aspect of hole strength distributions in odd potassium and calcium isotopes
journal, June 1976
- Doll, P.; Wagner, G. J.; Knöpfle, K. T.
- Nuclear Physics A, Vol. 263, Issue 2
Split-pole magnetic spectrograph for precision nuclear spectroscopy
journal, April 1967
- Spencer, J. E.; Enge, H. A.
- Nuclear Instruments and Methods, Vol. 49, Issue 2
Compilation of phenomenological optical-model parameters 1954–1975
journal, January 1976
- Perey, C. M.; Perey, F. G.
- Atomic Data and Nuclear Data Tables, Vol. 17, Issue 1
THE EFFECTS OF THE pep NUCLEAR REACTION AND OTHER IMPROVEMENTS IN THE NUCLEAR REACTION RATE LIBRARY ON SIMULATIONS OF THE CLASSICAL NOVA OUTBURST
journal, February 2009
- Starrfield, S.; Iliadis, C.; Hix, W. R.
- The Astrophysical Journal, Vol. 692, Issue 2
Direct Measurement of the Astrophysical Reaction and Its Influence on the Production of Nuclides toward the End Point of Nova Nucleosynthesis
journal, April 2016
- Lotay, G.; Christian, G.; Ruiz, C.
- Physical Review Letters, Vol. 116, Issue 13
Analysis of discrepant data using a bootstrap procedure
journal, April 2002
- Helene, O.; Vanin, V. R.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 481, Issue 1-3
The AME2016 atomic mass evaluation (II). Tables, graphs and references
journal, March 2017
- Wang, Meng; Audi, G.; Kondev, F. G.
- Chinese Physics C, Vol. 41, Issue 3
The Focal-Plane Detector Package on the TUNL Split-Pole Spectrograph
journal, February 2019
- Marshall, Caleb; Setoodehnia, Kiana; Kowal, Katie
- IEEE Transactions on Instrumentation and Measurement, Vol. 68, Issue 2
A study of the 40Ca(τ, α)39K reaction and the single hole states of 39K and 39Ca
journal, September 1966
- Hinds, S.; Middleton, R.
- Nuclear Physics, Vol. 84, Issue 3
Direct measurement of astrophysically important resonances in
journal, February 2018
- Christian, G.; Lotay, G.; Ruiz, C.
- Physical Review C, Vol. 97, Issue 2
Studies of (p, d) Reactions in 24 Mg, 32 S and 40 Ca at 185 MeV
journal, February 1975
- Källne, J.; Fagerström, B.
- Physica Scripta, Vol. 11, Issue 2
The Thermonuclear Runaway and the Classical Nova Outburst
journal, April 2016
- Starrfield, S.; Iliadis, C.; Hix, W. R.
- Publications of the Astronomical Society of the Pacific, Vol. 128, Issue 963
Energy levels of light nuclei
journal, April 2012
- Kelley, J. H.; Kwan, E.; Purcell, J. E.
- Nuclear Physics A, Vol. 880
MESA and NuGrid simulations of classical novae: CO and ONe nova nucleosynthesis
journal, June 2014
- Denissenkov, P. A.; Truran, J. W.; Pignatari, M.
- Monthly Notices of the Royal Astronomical Society, Vol. 442, Issue 3
Nova Aquilae 1982
journal, September 1987
- Snijders, M. A. J.; Batt, T. J.; Roche, P. F.
- Monthly Notices of the Royal Astronomical Society, Vol. 228, Issue 2
One-nucleon transfer reactions on 16O and 40Ca induced by 33 MeV polarized 3He
journal, January 1980
- Lui, Y. -W.; Karban, O.; Roman, S.
- Nuclear Physics A, Vol. 333, Issue 2
Infrared Space Observatory and Ground-Based Infrared Observations of the Classical Nova V723 Cassiopeiae
journal, October 2003
- Evans, A.; Gehrz, R. D.; Geballe, T. R.
- The Astronomical Journal, Vol. 126, Issue 4
Energy levels of light nuclei A = 13–15
journal, February 1991
- Ajzenberg-Selove, F.
- Nuclear Physics A, Vol. 523, Issue 1
( p , d Ca reaction at 65 MeV
journal, July 1993
- Matoba, M.; Iwamoto, O.; Uozumi, Y.
- Physical Review C, Vol. 48, Issue 1
Étude du pick-up d'un neutron sur les isotones N = 20 40Ca, 39K et 37Cl
journal, May 1972
- Ronsin, G.; Vergnes, M.; Rotbard, G.
- Nuclear Physics A, Vol. 187, Issue 1
Frontiers in nuclear astrophysics
journal, July 2016
- Bertulani, C. A.; Kajino, T.
- Progress in Particle and Nuclear Physics, Vol. 89
Inelastic scattering and clusters transfer in 3,4He + 9Be reactions
journal, September 2015
- Denikin, A. S.; Lukyanov, S. M.; Skobelev, N. K.
- Physics of Particles and Nuclei Letters, Vol. 12, Issue 5
The 19F(p, n)19Ne and 39K(p, n)39Ca reactions at intermediate energies and quenching of the Gamow-Teller strength
journal, December 1984
- Rapaport, J.; Gaarde, C.; Larsen, J.
- Nuclear Physics A, Vol. 431, Issue 2
Nucleosynthesis in Classical Novae: CO versus ONe White Dwarfs
journal, February 1998
- Jose, Jordi; Hernanz, Margarita
- The Astrophysical Journal, Vol. 494, Issue 2
Combined Magnetic Spectrograph and Spectrometer
journal, October 1958
- Enge, Harald A.
- Review of Scientific Instruments, Vol. 29, Issue 10
Nuclear Reactions for Astrophysics: Principles, Calculation and Applications of Low-Energy Reactions
book, January 2009
- Thompson, Ian J.; Nunes, Filomena M.
The Effects of Thermonuclear Reaction‐Rate Variations on Nova Nucleosynthesis: A Sensitivity Study
journal, September 2002
- Iliadis, Christian; Champagne, Art; Jose, Jordi
- The Astrophysical Journal Supplement Series, Vol. 142, Issue 1
Strongly excited levels of39Ca in the40Ca(3He, α)39Ca reaction
journal, October 1965
- Yagi, K.; Ishimatsu, T.; Ejiri, H.
- Il Nuovo Cimento, Vol. 39, Issue 4
Nuclear Data Sheets for A = 39
journal, February 2006
- Singh, Balraj; Cameron, John A.
- Nuclear Data Sheets, Vol. 107, Issue 2
( ) Reaction on Nuclei in the Shell
journal, August 1968
- Kozub, R. L.
- Physical Review, Vol. 172, Issue 4
Charged-particle thermonuclear reaction rates: I. Monte Carlo method and statistical distributions
journal, October 2010
- Longland, R.; Iliadis, C.; Champagne, A. E.
- Nuclear Physics A, Vol. 841, Issue 1-4
Distortion of secondaries in semi-detached binaries and the cataclysmic variable period minimum
journal, June 2002
- Renvoizé, V.; Baraffe, I.; Kolb, U.
- Astronomy & Astrophysics, Vol. 389, Issue 2
Magnetic spectrographs for nuclear reaction studies
journal, June 1979
- Enge, Harald A.
- Nuclear Instruments and Methods, Vol. 162, Issue 1-3
A study of the shell of Nova V705 Cas
journal, June 2000
- Arkhipova, V. P.; Burlak, M. A.; Esipov, V. F.
- Astronomy Letters, Vol. 26, Issue 6
Global optical model potential for alpha projectile
journal, December 2015
- Su, Xin-Wu; Han, Yin-Lu
- International Journal of Modern Physics E, Vol. 24, Issue 12