Title: Improved nuclear physics near A = 61 refines urca neutrino luminosities in accreted neutron star crusts

Journal Article · · Physical Review. C
ORCiD logo [1]; ORCiD logo [2];  [3];  [2];  [4];  [5]; ORCiD logo [6];  [7]; ORCiD logo [2];  [8];  [2];  [9];  [10];  [5];  [2];  [10];  [10]; ORCiD logo [11];  [2]
  1. Ohio Univ., Athens, OH (United States); Ohio University
  2. National Superconducting Cyclotron Lab., East Lansing, MI (United States); Michigan State Univ., East Lansing, MI (United States)
  3. Michigan State Univ., East Lansing, MI (United States); Facility for Rare Isotope Beams, East Lansing, MI (United States)
  4. GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt (Germany)
  5. National Superconducting Cyclotron Lab., East Lansing, MI (United States); Central Michigan Univ., Mount Pleasant, MI (United States)
  6. National Superconducting Cyclotron Lab., East Lansing, MI (United States); Michigan State Univ., East Lansing, MI (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  7. Univ. of Applied Science Aachen, Julich (Germany)
  8. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  9. Central Michigan Univ., Mount Pleasant, MI (United States); National Superconducting Cyclotron Lab., East Lansing, MI (United States)
  10. National Superconducting Cyclotron Lab., East Lansing, MI (United States)
  11. Univ. of Notre Dame, IN (United States); Argonne National Lab. (ANL), Lemont, IL (United States)

We performed Penning trap mass measurements for 61Zn at the National Superconducting Cyclotron Laboratory and NuShellX calculations of the 61Zn and 62Ga structure using the GXPF1A Hamiltonian to obtain improved estimates of the 61Zn(p,γ)62Ga and 60Cu(p,γ)61Zn reaction rates. Surveying astrophysical conditions for type-I x-ray bursts with the code mesa, implementing our improved reaction rates, and taking into account updated nuclear masses for 61V and 61Cr from the recent literature, we refine the neutrino luminosity from the important mass number A = 61 urca cooling source in accreted neutron-star crusts. Furthermore, this improves our understanding of the thermal barrier between deep heating in the crust and the shallow depths where extra heat is needed to explain x-ray superbursts, as well as the expected signature of crust urca neutrino emission in light curves of cooling transients

Research Organization:
Central Michigan Univ., Mount Pleasant, MI (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Ohio Univ., Athens, OH (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344; FG02-88ER40387; NA0003909; SC0015927; SC0019042
OSTI ID:
1845660
Report Number(s):
LLNL--JRNL-839233; PHY-1430152; PHY-1565546; PHY-1713857; PHY-2111185
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 2 Vol. 105; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (69)

Astrophysical Reaction Rates From Statistical Model Calculations journal May 2000
SHELL MODEL BASED REACTION RATES FOR rp-PROCESS NUCLEI IN THE MASS RANGE A=44–63 journal November 2001
Thermonuclear X-ray Bursts book October 2020
URCA shells in dense stellar interiors journal June 1970
A direct determination of the proton electron mass ratio journal March 1980
Cooling of Accretion-Heated Neutron Stars journal September 2017
Quadrupole excitation of stored ion motion at the true cyclotron frequency journal March 1995
Commissioning the A1900 projectile fragment separator journal May 2003
A “Lorentz” steerer for ion injection into a Penning trap journal May 2007
Penning trap mass spectrometry of rare isotopes produced via projectile fragmentation at the LEBIT facility journal September 2013
Isobaric beam purification for high precision Penning trap mass spectrometry of radioactive isotope beams with SWIFT journal March 2015
The Shell-Model Code NuShellX@MSU journal June 2014
The LEBIT 9.4T Penning trap mass spectrometer
  • Ringle, R.; Bollen, G.; Prinke, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 604, Issue 3 https://doi.org/10.1016/j.nima.2009.03.207
journal June 2009
The LEBIT ion cooler and buncher
  • Schwarz, S.; Bollen, G.; Ringle, R.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 816 https://doi.org/10.1016/j.nima.2016.01.078
journal April 2016
Beam thermalization in a large gas catcher
  • Sumithrarachchi, C. S.; Morrissey, D. J.; Schwarz, S.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 463 https://doi.org/10.1016/j.nimb.2019.04.077
journal January 2020
Tailored excitation for Fourier transform ion cyclotron mass spectrometry journal December 1985
Standard Solar Composition journal January 1998
Strong neutrino cooling by cycles of electron capture and β− decay in neutron star crusts journal December 2013
The accuracy of heavy‐ion mass measurements using time of flight‐ion cyclotron resonance in a Penning trap journal November 1990
Presupernova evolution of massive stars journal October 1978
The Rapid Proton Process Ashes from Stable Nuclear Burning on an Accreting Neutron Star journal October 1999
Models for Type I X‐Ray Bursts with Improved Nuclear Physics journal March 2004
Explosive Hydrogen Burning during Type I X‐Ray Bursts
  • Fisker, Jacob Lund; Schatz, Hendrik; Thielemann, Friedrich‐Karl
  • The Astrophysical Journal Supplement Series, Vol. 174, Issue 1 https://doi.org/10.1086/521104
journal January 2008
The Effects of Variations in Nuclear Processes on Type I X‐Ray Burst Nucleosynthesis journal September 2008
POSSIBLE RESONANCES IN THE 12 C + 12 C FUSION RATE AND SUPERBURST IGNITION journal August 2009
Constraints on Neutron star mass and Radius in gs 1826–24 from Sub-Eddington X-Ray Bursts journal March 2012
The jina Reaclib Database: its Recent Updates and Impact on Type-I X-Ray Bursts journal June 2010
Modules for Experiments in Stellar Astrophysics (Mesa) journal December 2010
Modules for Experiments in Stellar Astrophysics (Mesa): Planets, Oscillations, Rotation, and Massive Stars journal August 2013
Modules for Experiments in Stellar Astrophysics (Mesa): Binaries, Pulsations, and Explosions journal September 2015
Nuclear physics of the outer layers of accreting neutron stars journal July 2018
The NUBASE2020 evaluation of nuclear physics properties * journal March 2021
The AME 2020 atomic mass evaluation (II). Tables, graphs and references* journal March 2021
The AME 2020 atomic mass evaluation (I). Evaluation of input data, and adjustment procedures* journal March 2021
A Strong Shallow heat Source in the Accreting Neutron star maxi J0556-332 journal August 2015
Multi-epoch X-ray burst modelling: MCMC with large grids of 1D simulations journal April 2020
Urca nuclide production in Type-I X-ray bursts and implications for nuclear physics studies journal November 2020
Uncertainties in νp-process nucleosynthesis from Monte Carlo variation of reaction rates journal August 2019
Neutron transfer reactions in accreting neutron stars journal November 2018
The Calculation of Errors by the Method of Least Squares journal April 1932
Nuclear mass measurements map the structure of atomic nuclei and accreting neutron stars journal May 2020
New effective interaction for p f -shell nuclei and its implications for the stability of the N = Z = 28 closed core journal March 2004
High-precision Penning trap mass measurements of Ca 37 , 38 and their contributions to conserved vector current and isobaric mass multiplet equation journal May 2007
Impact of the symmetry energy on the outer crust of nonaccreting neutron stars journal August 2008
Low-energy structure of Mn 61 populated following β decay of Cr 61 journal May 2009
β decay of 61 Mn to levels in 61 Fe journal July 2013
Forecasting Neutron Star Temperatures: Predictability and Variability journal December 2013
First Direct Determination of the Superallowed β -Decay Q E C Value for O 14 journal June 2015
Precision Mass Measurements of Cr 58 – 63 : Nuclear Collectivity Towards the N = 40 Island of Inversion journal June 2018
Mapping of a New Deformation Region Around Ti 62 journal September 2020
β Decay of V 61 and its Role in Cooling Accreted Neutron Star Crusts journal December 2020
Shell-model description of neutron-rich pf-shell nuclei with a new effective interaction GXPF 1 journal April 2005
From direct to absolute mass measurements: A study of the accuracy of ISOLTRAP journal January 2003
Radiative Capture Reactions in Astrophysics journal October 2015
Penning-Trap Mass Measurements in Atomic and Nuclear Physics journal October 2018
Population inversion of nuclear states by a Penning trap mass spectrometer journal August 2004
Dependence of X-Ray Burst Models on Nuclear Reaction Rates journal October 2016
Urca Cooling Pairs in the Neutron star Ocean and Their Effect on Superbursts journal October 2016
ERRATUM: “MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA): BINARIES, PULSATIONS, AND EXPLOSIONS” (2015, ApJS, 220, 15) journal March 2016
The Thermal State of ks 1731−260 After 14.5 Years in Quiescence journal December 2016
Constraints on Bygone Nucleosynthesis of Accreting Neutron Stars journal March 2017
Late-time Cooling of Neutron Star Transients and the Physics of the Inner Crust journal April 2017
Thermonuclear Bursts with Short Recurrence Times from Neutron Stars Explained by Opacity-driven Convection journal June 2017
Dependence of X-Ray Burst Models on Nuclear Masses journal August 2017
Nuclear Reactions in the Crusts of Accreting Neutron Stars journal May 2018
Consistent Modeling of GS 1826-24 X-Ray Bursts for Multiple Accretion Rates Demonstrates the Possibility of Constraining rp -process Reaction Rates journal June 2018
Influence of Nuclear Reaction Rate Uncertainties on Neutron Star Properties Extracted from X-Ray Burst Model–Observation Comparisons journal February 2019
The Impact of Neutron Transfer Reactions on the Heating and Cooling of Accreted Neutron Star Crusts journal February 2022
Different Accretion Heating of the Neutron Star Crust during Multiple Outbursts in MAXI J0556–332 journal December 2017