prikaz prve stranice dokumenta First Measurement of the 19F(α, p)22Ne Reaction at Energies of Astrophysical Relevance
  Preuzmi
PDF 419.32 KB
Znanstveni rad - Izvorni znanstveni rad
First Measurement of the 19F(α, p)22Ne Reaction at Energies of Astrophysical Relevance
Astrophysical Journal, 836 (2017), 1; 57. https://doi.org/10.3847/1538-4357/836/1/57
Pizzone, R.G.; D'Agata, G.; La Cognata, M.; Indelicato, I.; Spitaleri, C.; Blagus, S.; Cherubini, S.; Figuera, P.; Grassi, L.; Guardo, G.L.; Gulino, M.; Hayakawa, S.; Kshetri, R.; Lamia, L.; Lattuada, M.; Mijatović, Tea; Milin, Matko; Miljanić, Đuro; Prepolec, Lovro; Rapisarda, G.G.; Romano, S.; Sergi, M.L.; Skukan, Natko; Soić, Neven; Tokić, Vedrana; Tumino, A.; Uroić, Milivoj Više autora...

Institucijski repozitorij: Repozitorij Prirodoslovno-matematičkog fakulteta

Citirajte ovaj rad

Pizzone, R., D'Agata, G., La Cognata, M., Indelicato, I., Spitaleri, C., Blagus, S. ... Uroić, M. (2017). First Measurement of the 19F(α, p)22Ne Reaction at Energies of Astrophysical Relevance. Astrophysical Journal, 836. (1). doi: 10.3847/1538-4357/836/1/57

Pizzone, R.G., et al. "First Measurement of the 19F(α, p)22Ne Reaction at Energies of Astrophysical Relevance." Astrophysical Journal, vol. 836, br. 1, 2017. https://doi.org/10.3847/1538-4357/836/1/57

Pizzone, R.G., G. D'Agata, M. La Cognata, I. Indelicato, C. Spitaleri, S. Blagus, S. Cherubini, et al. "First Measurement of the 19F(α, p)22Ne Reaction at Energies of Astrophysical Relevance." Astrophysical Journal 836, br. 1 (2017). https://doi.org/10.3847/1538-4357/836/1/57

Pizzone, R., et al. (2017) 'First Measurement of the 19F(α, p)22Ne Reaction at Energies of Astrophysical Relevance', Astrophysical Journal, 836(1). doi: 10.3847/1538-4357/836/1/57

Pizzone R, D'Agata G, La Cognata M, Indelicato I, Spitaleri C, Blagus S, i sur.. First Measurement of the 19F(α, p)22Ne Reaction at Energies of Astrophysical Relevance. Astrophysical Journal [Internet]. 2017. [pristupljeno 15.05.2024.];836(1). doi: 10.3847/1538-4357/836/1/57

R. Pizzone, et al., "First Measurement of the 19F(α, p)22Ne Reaction at Energies of Astrophysical Relevance", Astrophysical Journal, vol. 836, br. 1, 2017. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:603063. [Citirano: 15.05.2024.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:603063
Podaci o radu
Naslov (engleski)First Measurement of the 19F(α, p)22Ne Reaction at Energies of Astrophysical Relevance
AutorR.G. Pizzone
AutorG. D'Agata
AutorM. La Cognata
AutorI. Indelicato
AutorC. Spitaleri
AutorS. Blagus
AutorS. Cherubini
AutorP. Figuera
AutorL. Grassi
AutorG.L. Guardo
AutorM. Gulino
AutorS. Hayakawa
AutorR. Kshetri
AutorL. Lamia
AutorM. Lattuada
AutorTea Mijatović
MBZ: 330335
AutorMatko Milin
MBZ: 233723
AutorĐuro Miljanić
MBZ: 31583
AutorLovro Prepolec
MBZ: 326842
AutorG.G. Rapisarda
AutorS. Romano
AutorM.L. Sergi
AutorNatko Skukan
AutorNeven Soić
MBZ: 184260
AutorVedrana Tokić
MBZ: 340145
AutorA. Tumino
AutorMilivoj Uroić
MBZ: 221764
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
The observational 19F abundance in stellar environments systematically exceeds the predicted one, thus representing one of the unsolved challenges for stellar modeling. It is therefore clear that further investigation is needed in this field. In this work, we focus our attention on the measurement of the 19F(α, p) 22Ne reaction in the astrophysical energy range, between 0.2 and 0.8 MeV (far below the Coulomb barrier, 3.8 MeV), as it represents the main destruction channel in He-rich environments. The lowest energy at which this reaction has been studied with direct measurements is ∼0.66 MeV, covering only the upper tail of the Gamow window, causing the reaction-rate evaluation to be based on extrapolation. To investigate lower energies, the 19F(α, p) 22Ne reaction has been studied by means of the Trojan horse method, applied to the quasi-free 6Li (19F, p22Ne)2H reaction at Ebeam = 6 MeV. The indirect cross section of the 19F(α, p) 22Ne reaction at energies ≲1 MeV was extracted, fully covering the astrophysical region of interest and overlapping existing direct data for normalization. Several resonances have been detected for the first time inside the Gamow window. The reaction rate has been calculated, showing an increase up to a factor of 4 with respect to the literature at astrophysical temperatures. This might lead to potential major astrophysical implications.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaAstrophysical Journal
Brojčani podacivol. 836, br. 1, 57
p-ISSN0004-637X
e-ISSN1538-4357
DOIhttps://doi.org/10.3847/1538-4357/836/1/57
URN:NBNurn:nbn:hr:217:603063
Datum objave publikacije2017
ProjektŠifra: IP-2013-11-7194
Naziv (hrvatski): Nuklearna struktura i reakcije: eksperimentima prema neutronskoj liniji kapanja
Kratica: SR-ETNo
Voditelj: Suzana Szilner
Pravna nadležnost: Hrvatska
Financijer: HRZZ
Linija financiranja: IP
URL dokumentahttps://iopscience.iop.org/article/10.3847/1538-4357/836/1/57
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Javna napomena© 2017. The American Astronomical Society. All rights reserved. Received 2016 December 21; revised 2017 January 10; accepted 2017 January 10; published 2017 February 8.
Datum i vrijeme pohrane2020-02-28 18:52:25