Reaction rate of the 18O(p; α)15N reaction at astrophysical temperatures

M. La Cognata; C. Spitaleri; A. Mukhamedzhanov; R. E. Tribble; T. Al-Abdullah; A. Banu; S. Cherubini; A. Coc; V. Crucilla; V. Goldberg; M. Gulino; B. Irgaziev; G. G. Kiss; L. Lamia; J. Mrazek; R. G. Pizzone; S. M.R. Puglia; G. G. Rapisarda; S. Romano; M. L. Sergi; G. Tabacaru; L. Trache; W. Trzaska; S. Tudisco; A. Tumino

Reaction rate of the ¹⁸O(p; α)¹⁵N reaction at astrophysical temperatures

M. La Cognata^*
, C. Spitaleri
, A. Mukhamedzhanov
, R. E. Tribble
, T. Al-Abdullah
, A. Banu
, S. Cherubini
, A. Coc
, V. Crucilla
, V. Goldberg
, M. Gulino
, B. Irgaziev
, G. G. Kiss
, L. Lamia
, J. Mrazek
, R. G. Pizzone
, S. M.R. Puglia
, G. G. Rapisarda
, S. Romano
, M. L. Sergi

G. Tabacaru, L. Trache, W. Trzaska, S. Tudisco, A. Tumino

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

Abstract

The ¹⁸O(p, α)¹⁵N reaction rate has been deduced by means of the Trojan horse method. For the first time the contribution of the 20 keV resonance has been directly evaluated, giving a value about 35% larger than the one in the literature. Moreover, the present approach has allowed to improve the accuracy by a factor 8.5, as it is based on the measured strength instead of spectroscopic measurements. The contribution of the 90 keV resonance has been also determined, which turned out to be of negligible importance to astrophysics.

Original language	English
Pages (from-to)	111-114
Number of pages	4
Journal	Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society
Volume	14
State	Published - 2009
Externally published	Yes

Bibliographical note

Publisher Copyright:
© SAIt 2010.

Keywords

Nuclear reactions, nucleosynthesis, abundances
Stars: AGB and post-AGB
Stars: abundances

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Instrumentation
Radiology Nuclear Medicine and imaging
Astronomy and Astrophysics
Electrical and Electronic Engineering

Cite this

La Cognata, M., Spitaleri, C., Mukhamedzhanov, A., Tribble, R. E., Al-Abdullah, T., Banu, A., Cherubini, S., Coc, A., Crucilla, V., Goldberg, V., Gulino, M., Irgaziev, B., Kiss, G. G., Lamia, L., Mrazek, J., Pizzone, R. G., Puglia, S. M. R., Rapisarda, G. G., Romano, S., ... Tumino, A. (2009). Reaction rate of the ¹⁸O(p; α)¹⁵N reaction at astrophysical temperatures. Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society, 14, 111-114.

@article{6d299c23dd824026b9709ba58361bf3c,

title = "Reaction rate of the 18O(p; α)15N reaction at astrophysical temperatures",

abstract = "The 18O(p, α)15N reaction rate has been deduced by means of the Trojan horse method. For the first time the contribution of the 20 keV resonance has been directly evaluated, giving a value about 35\% larger than the one in the literature. Moreover, the present approach has allowed to improve the accuracy by a factor 8.5, as it is based on the measured strength instead of spectroscopic measurements. The contribution of the 90 keV resonance has been also determined, which turned out to be of negligible importance to astrophysics.",

keywords = "Nuclear reactions, nucleosynthesis, abundances, Stars: AGB and post-AGB, Stars: abundances",

author = "\{La Cognata\}, M. and C. Spitaleri and A. Mukhamedzhanov and Tribble, \{R. E.\} and T. Al-Abdullah and A. Banu and S. Cherubini and A. Coc and V. Crucilla and V. Goldberg and M. Gulino and B. Irgaziev and Kiss, \{G. G.\} and L. Lamia and J. Mrazek and Pizzone, \{R. G.\} and Puglia, \{S. M.R.\} and Rapisarda, \{G. G.\} and S. Romano and Sergi, \{M. L.\} and G. Tabacaru and L. Trache and W. Trzaska and S. Tudisco and A. Tumino",

note = "Publisher Copyright: {\textcopyright} SAIt 2010.",

year = "2009",

language = "English",

volume = "14",

pages = "111--114",

journal = "Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society",

issn = "1824-016X",

publisher = "Societa Astronomica Italiana",

}

La Cognata, M, Spitaleri, C, Mukhamedzhanov, A, Tribble, RE, Al-Abdullah, T, Banu, A, Cherubini, S, Coc, A, Crucilla, V, Goldberg, V, Gulino, M, Irgaziev, B, Kiss, GG, Lamia, L, Mrazek, J, Pizzone, RG, Puglia, SMR, Rapisarda, GG, Romano, S, Sergi, ML, Tabacaru, G, Trache, L, Trzaska, W, Tudisco, S & Tumino, A 2009, 'Reaction rate of the ¹⁸O(p; α)¹⁵N reaction at astrophysical temperatures', Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society, vol. 14, pp. 111-114.

TY - JOUR

T1 - Reaction rate of the 18O(p; α)15N reaction at astrophysical temperatures

AU - La Cognata, M.

AU - Spitaleri, C.

AU - Mukhamedzhanov, A.

AU - Tribble, R. E.

AU - Al-Abdullah, T.

AU - Banu, A.

AU - Cherubini, S.

AU - Coc, A.

AU - Crucilla, V.

AU - Goldberg, V.

AU - Gulino, M.

AU - Irgaziev, B.

AU - Kiss, G. G.

AU - Lamia, L.

AU - Mrazek, J.

AU - Pizzone, R. G.

AU - Puglia, S. M.R.

AU - Rapisarda, G. G.

AU - Romano, S.

AU - Sergi, M. L.

AU - Tabacaru, G.

AU - Trache, L.

AU - Trzaska, W.

AU - Tudisco, S.

AU - Tumino, A.

PY - 2009

Y1 - 2009

N2 - The 18O(p, α)15N reaction rate has been deduced by means of the Trojan horse method. For the first time the contribution of the 20 keV resonance has been directly evaluated, giving a value about 35% larger than the one in the literature. Moreover, the present approach has allowed to improve the accuracy by a factor 8.5, as it is based on the measured strength instead of spectroscopic measurements. The contribution of the 90 keV resonance has been also determined, which turned out to be of negligible importance to astrophysics.

AB - The 18O(p, α)15N reaction rate has been deduced by means of the Trojan horse method. For the first time the contribution of the 20 keV resonance has been directly evaluated, giving a value about 35% larger than the one in the literature. Moreover, the present approach has allowed to improve the accuracy by a factor 8.5, as it is based on the measured strength instead of spectroscopic measurements. The contribution of the 90 keV resonance has been also determined, which turned out to be of negligible importance to astrophysics.

KW - Nuclear reactions, nucleosynthesis, abundances

KW - Stars: AGB and post-AGB

KW - Stars: abundances

UR - https://www.scopus.com/pages/publications/85036475811

M3 - Conference article

AN - SCOPUS:85036475811

SN - 1824-016X

VL - 14

SP - 111

EP - 114

JO - Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society

JF - Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society

ER -