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Search for 22Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes

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Title
Search for 22Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes
Author(s)
Fougères, Chloé; de Oliveira Santos, François; José, Jordi; Michelagnoli, Caterina; Clément, Emmanuel; Yung Hee Kim; Lemasson, Antoine; Guimarães, Valdir; Barrientos, Diego; Bemmerer, Daniel; Benzoni, Giovanna; Boston, Andrew J.; Böttger, Roman; Boulay, Florent; Bracco, Angela; Čeliković, Igor; Cederwall, Bo; Ciemala, Michał; Delafosse, Clément; Domingo-Pardo, César; Dudouet, Jérémie; Eberth, Jürgen; Fülöp, Zsolt; González, Vicente; Gottardo, Andrea; Goupil, Johan; Hess, Herbert; Jungclaus, Andrea; Kaşkaş, Ayşe; Korichi, Amel; Lenzi, Silvia M.; Leoni, Silvia; Li, Hongjie; Ljungvall, Joa; Lopez-Martens, Araceli; Menegazzo, Roberto; Mengoni, Daniele; Million, Benedicte; Mrázek, Jaromír; Napoli, Daniel R.; Navin, Alahari; Nyberg, Johan; Podolyák, Zsolt; Pullia, Alberto; Quintana, Begoña; Ralet, Damien; Redon, Nadine; Reiter, Peter; Rezynkina, Kseniia; Saillant, Frédéric; Salsac, Marie-Delphine; Sánchez-Benítez, Angel M.; Sanchis, Enrique; Şenyiğit, Menekşe; Siciliano, Marco; Smirnova, Nadezda A.; Sohler, Dorottya; Stanoiu, Mihai; Theisen, Christophe; Valiente-Dobón, Jose J.; Ujić, Predrag; Zielińska, Magdalena
Publication Date
2023-09
Journal
Nature Communications, v.14, no.1
Publisher
Nature Research
Abstract
Classical novae are thermonuclear explosions in stellar binary systems, and important sources of 26Al and 22Na. While γ rays from the decay of the former radioisotope have been observed throughout the Galaxy, 22Na remains untraceable. Its half-life (2.6 yr) would allow the observation of its 1.275 MeV γ-ray line from a cosmic source. However, the prediction of such an observation requires good knowledge of its nucleosynthesis. The 22Na(p, γ)23Mg reaction remains the only source of large uncertainty about the amount of 22Na ejected. Its rate is dominated by a single resonance on the short-lived state at 7785.0(7) keV in 23Mg. Here, we propose a combined analysis of particle-particle correlations and velocity-difference profiles to measure femtosecond nuclear lifetimes. The application of this method to the study of the 23Mg states, places strong limits on the amount of 22Na produced in novae and constrains its detectability with future space-borne observatories. © 2023, This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply.
URI
https://pr.ibs.re.kr/handle/8788114/14527
DOI
10.1038/s41467-023-40121-3
ISSN
2041-1723
Appears in Collections:
Center for Exotic Nuclear Studies(희귀 핵 연구단) > 1. Journal Papers (저널논문)
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