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S, Bishop; Re, A. Da; Buchmann, L.; Aa, Chen; Ml, Chatterjee; Jm, D'Auria; Engel, Sabine; Gigliotti, D.; Greife, U.; Hernanz, M.; Hunter, D.; Hussein, A.; Hutcheon, D. A.; Jewett, C.; José, J.; King, J. D.; Kubono, S.; Am, Laird; Lamey, M; Lewis, R.; W, Liu; Michimasa, S.; Olin, Å.; Ottewell, D.; Pd, Parker; Rogers, Justin; Strieder, F.; Wrede, C.

doi:10.1103/physrevlett.90.162501

Cited by 99 publications

(19 citation statements)

References 20 publications

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“…In a one-zone post-processing study conducted with a Monte Carlo approach to rate variations, the 21 Na(p, γ ) reaction is given in a prioritized list of reactions that affect the production of 22 Na. 168,169 Using a 1-D hydrodynamic model, Bishop et al 179 and Davids et al 180 found that 22 Na production decreased by about 20% when results using two rates differing by a factor of ≈5 (at 0.2 GK) were compared. r 22 Na(p, γ ) 23 Mg Coc et al, using a semi-analytical approach, 165 compared the yield of 22 Na obtained using different 22 Na(p, γ ) rates.…”

Section: Thermonuclear Reaction Rates With Demonstrated Impact On Novmentioning

confidence: 99%

Classical novae and type I X-ray bursts: Challenges for the 21st century

2014

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Classical nova explosions and type I X-ray bursts are the most frequent types of thermonuclear stellar explosions in the Galaxy. Both phenomena arise from thermonuclear ignition in the envelopes of accreting compact objects in close binary star systems. Detailed observations of these events have stimulated numerous studies in theoretical astrophysics and experimental nuclear physics. We discuss observational features of these phenomena and theoretical efforts to better understand the energy production and nucleosynthesis in these explosions. We also examine and summarize studies directed at identifying nuclear physics quantities with uncertainties that significantly affect model predictions.

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Section: Thermonuclear Reaction Rates With Demonstrated Impact On Novmentioning

confidence: 99%

Classical novae and type I X-ray bursts: Challenges for the 21st century

2014

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“…The 22 Na yield predicted by nova models is sensitive to the thermonuclear rates of the reactions associated with explosive hydrogen burning on the surface of a white-dwarf star accreting hydrogen-rich material from a binary companion star [19,32]. This has motivated the development of innovative experimental nuclear physics techniques, providing rates to improve predictions of the 22 Na yield [33][34][35][36][37][38][39][40][41][42][43][44][45]. While 22 Na is being produced during the thermonuclear runaway driving a nova, the 22 Na(p, γ ) 23 Mg reaction is actively destroying it.…”

mentioning

confidence: 99%

Low-energy Al23β -delayed proton decay and Na22 destruction in novae

et al. 2020

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“…where 𝜂 = 𝜂 cs 𝜂 t 𝜂 det 𝜂 𝛾 and, for the cases under consideration below, we estimate 𝜂 cs = 0.25 (Shima et al 1992), 𝜂 t = 1, 𝜂 det = 1, and 𝜂 𝛾 = 0.5 (Bishop et al 2003;Christian et al 2013;Christian et al 2018).…”

Section: Implications For Resonance Strength Measurementsmentioning

confidence: 99%

Urca Nuclide Production in Type-I X-ray Bursts and Implications for Nuclear Physics Studies

Merz,

Meisel

2020

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The thermal structure of accreting neutron stars is affected by the presence of urca nuclei in the neutron star crust. Nuclear isobars harboring urca nuclides can be produced in the ashes of Type I X-ray bursts, but the details of their production have not yet been explored. Using the code MESA, we investigate urca nuclide production in a one-dimensional model of Type I X-ray bursts using astrophysical conditions thought to resemble the source GS 1826-24. We find that high-mass (𝐴 ≥ 55) urca nuclei are primarily produced late in the X-ray burst, during hydrogen-burning freeze-out that corresponds to the tail of the burst light curve. The ∼ 0.4-0.6 GK temperature relevant for nucleosynthesis of these urca nuclides is much lower than the ∼ 1 GK temperature most relevant for X-ray burst light curve impacts by nuclear reaction rates involving high-mass nuclides. The latter temperature is often assumed for nuclear physics studies. Therefore, our findings alter the excitation energy range of interest in compound nuclei for nuclear physics studies of urca nuclide production. We demonstrate that for some cases this will need to be considered in planning for nuclear physics experiments. Additionally, we show that the lower temperature range for urca nuclide production explains why variations of some nuclear reaction rates in model calculations impacts the burst light curve but not local features of the burst ashes.

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Na21(p,γ)Mg

Cited by 99 publications

References 20 publications

Classical novae and type I X-ray bursts: Challenges for the 21st century

Classical novae and type I X-ray bursts: Challenges for the 21st century

Low-energy Al23β -delayed proton decay and Na22 destruction in novae

Urca Nuclide Production in Type-I X-ray Bursts and Implications for Nuclear Physics Studies

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