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Title: Hydrodynamic Simulations of Oxygen–Neon Classical Novae as Galactic 7 Li Producers and Potential Accretion-induced Collapse Progenitors*

Abstract

Abstract We report on studies of classical nova (CN) explosions where we follow the evolution of thermonuclear runaways (TNRs) on oxygen–neon (ONe) white dwarfs (WDs). Using NOVA, a 1D hydrodynamic computer code, we accrete solar matter until the TNR is ongoing and then switch to a mixed composition. This approach is guided by the results of multidimensional studies of TNRs in WDs, which find that sufficient mixing with WD core material occurs after the TNR is well underway, and levels of enrichment of the CNONeMg elements are reached that agree with observations of CN ejecta abundances. Because the amount of accreted material is inversely proportional to the oxygen abundance, by first accreting solar matter, the amount of accreted material is larger than in those simulations with an initially enriched composition. We vary the mass of the WD (from 0.6 M to 1.35 M ) and the composition of the mixed materials. Our results show large enrichments of 7 Be in the ejected gases, implying that ONe CNe and CO CNe may be responsible for a significant fraction (∼100 M ) of the Galactic 7 Li (∼1000 M ). The production of 22 Na and 26 Almore » in CN explosions and the γ -ray emission predicted by our simulations are discussed. The WDs in all our simulations eject less material than they accrete and we predict that the WD is growing in mass as a consequence of the CN outburst. ONe CNe, therefore, may be an important channel for accretion-induced collapse events.« less

Authors:
ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
2309773
Grant/Contract Number:  
FG02- 97ER41041.
Resource Type:
Published Article
Journal Name:
The Astrophysical Journal
Additional Journal Information:
Journal Name: The Astrophysical Journal Journal Volume: 962 Journal Issue: 2; Journal ID: ISSN 0004-637X
Publisher:
American Astronomical Society
Country of Publication:
United States
Language:
English

Citation Formats

Starrfield, Sumner, Bose, Maitrayee, Iliadis, Christian, Hix, W. Raphael, Woodward, Charles E., and Wagner, R. Mark. Hydrodynamic Simulations of Oxygen–Neon Classical Novae as Galactic 7 Li Producers and Potential Accretion-induced Collapse Progenitors*. United States: N. p., 2024. Web. doi:10.3847/1538-4357/ad1836.
Starrfield, Sumner, Bose, Maitrayee, Iliadis, Christian, Hix, W. Raphael, Woodward, Charles E., & Wagner, R. Mark. Hydrodynamic Simulations of Oxygen–Neon Classical Novae as Galactic 7 Li Producers and Potential Accretion-induced Collapse Progenitors*. United States. https://doi.org/10.3847/1538-4357/ad1836
Starrfield, Sumner, Bose, Maitrayee, Iliadis, Christian, Hix, W. Raphael, Woodward, Charles E., and Wagner, R. Mark. Tue . "Hydrodynamic Simulations of Oxygen–Neon Classical Novae as Galactic 7 Li Producers and Potential Accretion-induced Collapse Progenitors*". United States. https://doi.org/10.3847/1538-4357/ad1836.
@article{osti_2309773,
title = {Hydrodynamic Simulations of Oxygen–Neon Classical Novae as Galactic 7 Li Producers and Potential Accretion-induced Collapse Progenitors*},
author = {Starrfield, Sumner and Bose, Maitrayee and Iliadis, Christian and Hix, W. Raphael and Woodward, Charles E. and Wagner, R. Mark},
abstractNote = {Abstract We report on studies of classical nova (CN) explosions where we follow the evolution of thermonuclear runaways (TNRs) on oxygen–neon (ONe) white dwarfs (WDs). Using NOVA, a 1D hydrodynamic computer code, we accrete solar matter until the TNR is ongoing and then switch to a mixed composition. This approach is guided by the results of multidimensional studies of TNRs in WDs, which find that sufficient mixing with WD core material occurs after the TNR is well underway, and levels of enrichment of the CNONeMg elements are reached that agree with observations of CN ejecta abundances. Because the amount of accreted material is inversely proportional to the oxygen abundance, by first accreting solar matter, the amount of accreted material is larger than in those simulations with an initially enriched composition. We vary the mass of the WD (from 0.6 M ⊙ to 1.35 M ⊙ ) and the composition of the mixed materials. Our results show large enrichments of 7 Be in the ejected gases, implying that ONe CNe and CO CNe may be responsible for a significant fraction (∼100 M ⊙ ) of the Galactic 7 Li (∼1000 M ⊙ ). The production of 22 Na and 26 Al in CN explosions and the γ -ray emission predicted by our simulations are discussed. The WDs in all our simulations eject less material than they accrete and we predict that the WD is growing in mass as a consequence of the CN outburst. ONe CNe, therefore, may be an important channel for accretion-induced collapse events.},
doi = {10.3847/1538-4357/ad1836},
journal = {The Astrophysical Journal},
number = 2,
volume = 962,
place = {United States},
year = {Tue Feb 20 00:00:00 EST 2024},
month = {Tue Feb 20 00:00:00 EST 2024}
}

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journal, June 2023

  • Aydi, E.; Chomiuk, L.; Mikołajewska, J.
  • Monthly Notices of the Royal Astronomical Society, Vol. 524, Issue 2
  • DOI: 10.1093/mnras/stad1914

Charged-particle thermonuclear reaction rates: IV. Comparison to previous work
journal, October 2010


Nucleosynthesis in Classical Novae: CO versus ONe White Dwarfs
journal, February 1998

  • Jose, Jordi; Hernanz, Margarita
  • The Astrophysical Journal, Vol. 494, Issue 2
  • DOI: 10.1086/305244

Radial accretion of H-rich material onto a He white dwarf
journal, July 1980

  • Kutter, G. S.; Sparks, W. M.
  • The Astrophysical Journal, Vol. 239
  • DOI: 10.1086/158187

Charged-particle thermonuclear reaction rates: III. Nuclear physics input
journal, October 2010


Nuclear Thermometers for Classical Novae
journal, December 2012


Solar System Abundances and Condensation Temperatures of the Elements
journal, July 2003

  • Lodders, Katharina
  • The Astrophysical Journal, Vol. 591, Issue 2
  • DOI: 10.1086/375492

FERMI- LAT GAMMA-RAY DETECTIONS OF CLASSICAL NOVAE V1369 CENTAURI 2013 AND V5668 SAGITTARII 2015
journal, July 2016


Evolutionary sequences for Nova V1974 Cygni using new nuclear reaction rates and opacities
journal, May 1998


Charged-particle thermonuclear reaction rates: II. Tables and graphs of reaction rates and probability density functions
journal, October 2010


On mixing at the core-envelope interface during classical nova outbursts
journal, April 2010


4.4 Abundances of the elements in the Solar System
book, January 2009


Charged-particle thermonuclear reaction rates: I. Monte Carlo method and statistical distributions
journal, October 2010


Lithium in T Coronae Borealis
journal, April 2020

  • Woodward, C. E.; Pavlenko, Ya. V.; Evans, A.
  • The Astronomical Journal, Vol. 159, Issue 5
  • DOI: 10.3847/1538-3881/ab8639

Silicon Burning. II. Quasi‐Equilibrium and Explosive Burning
journal, February 1999

  • Hix, W. Raphael; Thielemann, Friedrich‐Karl
  • The Astrophysical Journal, Vol. 511, Issue 2
  • DOI: 10.1086/306692

THE 2023 RELEASE OF Cloudy
journal, October 2023


Gamma-ray light curves and spectra of classical novae
journal, June 2022

  • Leung, Shing-Chi; Siegert, Thomas
  • Monthly Notices of the Royal Astronomical Society, Vol. 516, Issue 1
  • DOI: 10.1093/mnras/stac1672

A UV and optical study of 18 old novae with Gaia DR2 distances: mass accretion rates, physical parameters, and MMRD
journal, February 2019


A radio-detected type Ia supernova with helium-rich circumstellar material
journal, May 2023


An Extended Grid of Nova Models. II. The Parameter Space of Nova Outbursts
journal, April 2005

  • Yaron, O.; Prialnik, D.; Shara, M. M.
  • The Astrophysical Journal, Vol. 623, Issue 1
  • DOI: 10.1086/428435