prikaz prve stranice dokumenta Finite-temperature electron-capture rates for neutron-rich nuclei near N=50 and effects on core-collapse supernova simulations
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Finite-temperature electron-capture rates for neutron-rich nuclei near N=50 and effects on core-collapse supernova simulations
Physical Review C, 105 (2022), 5; 055801. https://doi.org/10.1103/PhysRevC.105.055801
Giraud, S.; Zegers, R. G. T.; Brown, B. A.; Gabler, J.-M.; Lesniak, J.; Rebenstock, J.; Ney, E. M.; Engel, J.; Ravlić, A.; Paar, N.

Institucijski repozitorij: Repozitorij Prirodoslovno-matematičkog fakulteta

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Giraud, S., Zegers, R. G. T., Brown, B. A., Gabler, J. M., Lesniak, J., Rebenstock, J. ... Paar, N. (2022). Finite-temperature electron-capture rates for neutron-rich nuclei near N=50 and effects on core-collapse supernova simulations. Physical Review C, 105. (5). doi: 10.1103/PhysRevC.105.055801

Giraud, S., et al. "Finite-temperature electron-capture rates for neutron-rich nuclei near N=50 and effects on core-collapse supernova simulations." Physical Review C, vol. 105, br. 5, 2022. https://doi.org/10.1103/PhysRevC.105.055801

Giraud, S., R. G. T. Zegers, B. A. Brown, J. M. Gabler, J. Lesniak, J. Rebenstock, E. M. Ney, J. Engel, A. Ravlić i N. Paar. "Finite-temperature electron-capture rates for neutron-rich nuclei near N=50 and effects on core-collapse supernova simulations." Physical Review C 105, br. 5 (2022). https://doi.org/10.1103/PhysRevC.105.055801

Giraud, S., et al. (2022) 'Finite-temperature electron-capture rates for neutron-rich nuclei near N=50 and effects on core-collapse supernova simulations', Physical Review C, 105(5). doi: 10.1103/PhysRevC.105.055801

Giraud S, Zegers RGT, Brown BA, Gabler JM, Lesniak J, Rebenstock J, i sur.. Finite-temperature electron-capture rates for neutron-rich nuclei near N=50 and effects on core-collapse supernova simulations. Physical Review C [Internet]. 2022. [pristupljeno 03.07.2024.];105(5). doi: 10.1103/PhysRevC.105.055801

S. Giraud, et al., "Finite-temperature electron-capture rates for neutron-rich nuclei near N=50 and effects on core-collapse supernova simulations", Physical Review C, vol. 105, br. 5, 2022. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:756684. [Citirano: 03.07.2024.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:756684
Podaci o radu
Naslov (engleski)Finite-temperature electron-capture rates for neutron-rich nuclei near N=50 and effects on core-collapse supernova simulations
AutorS. Giraud
AutorR. G. T. Zegers
AutorB. A. Brown
AutorJ.-M. Gabler
AutorJ. Lesniak
AutorJ. Rebenstock
AutorE. M. Ney
AutorJ. Engel
AutorA. Ravlić
AutorN. Paar
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
The temperature dependence of stellar electron- capture (EC) rates is investigated, with a focus on nuclei near N = 50, just above Z = 28, which play an important role during the collapse phase of core- collapse supernovae (CCSN). Two new microscopic calculations of stellar EC rates are obtained from relativistic and nonrelativistic finite-temperature quasiparticle random-phase approximation approaches, for a conventional grid of temperatures and densities. In both approaches, EC rates due to Gamow-Teller transitions are included. In the relativistic calculation, contributions from first-forbidden transitions are also included and add strongly to the EC rates. The new EC rates are compared with large-scale shell-model calculations for the specific case of 86Kr, providing insight into the finite- temperature effects on the EC rates. At relevant thermodynamic conditions for core collapse, the discrepancies between the different calculations of this paper are within about one order of magnitude. Numerical simulations of CCSN are performed with the spherically symmetric GR1D simulation code to quantify the impact of such differences on the dynamics of the collapse. These simulations also include EC rates based on two parametrized approximations. A comparison of the neutrino luminosities and enclosed mass at core bounce shows that differences between simulations with different sets of EC rates are relatively small (≈5%), suggesting that the EC rates used as inputs for these simulations have become well constrained.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaPhysical Review C
Brojčani podacivol. 105, br. 5, 055801
p-ISSN2469-9985
e-ISSN2469-9993
DOIhttps://doi.org/10.1103/PhysRevC.105.055801
URN:NBNurn:nbn:hr:217:756684
Datum objave publikacije2022
ProjektŠifra: KK.01.1.1.01.0004
Naziv (engleski): QuantiXLie Center of Excellence
Kratica: QuantiXLie
Voditelj: Hrvoje Buljan, Pavle Pandžić
Pravna nadležnost: eu
Financijer: Croatian Government and European Union
Linija financiranja: European Regional Development Fund - the Competitiveness and Cohesion Operational Programme
URL dokumentahttps://link.aps.org/doi/10.1103/PhysRevC.105.055801
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Javna napomena© 2022 American Physical Society. Received 2 December 2021; Accepted 22 February 2022; Published 4 May 2022.
Datum i vrijeme pohrane2023-09-07 19:22:35