Results 11 to 20 of about 23,934 (219)

The impact of n_TOF data on s-process modelling [PDF]

EPJ Web of Conferences, 2023
We show examples of the impact of the Maxwellian averaged capture cross sections determined at n_TOF over the past 20 years on AGB stellar nucleosynthesis models.
Lanzi Samuele, Cristallo Sergio, Giacomini Francesco, Massimi Cristian, Mengoni Alberto, Vescovi Diego   +5 more
doaj   +1 more source

Analysis of the impact of the 204Tl neutron capture cross section on the s-process only isotope 204Pb [PDF]

EPJ Web of Conferences, 2022
In the study of the slow (s) process of nucleosynthesis branching nuclei become of particular interest. These nuclei have half-lives of the order of 1-100 years, and in the stellar environment their decay rate can compete with the neutron capture rate ...
Casanovas-Hoste Adrià, Domingo-Pardo César, Guerrero Carlos, Tarifeño-Saldivia Ariel, Calviño Francisco, Lerendegui-Marco Jorge   +5 more
doaj   +1 more source

Insights into AGB Nucleosynthesis Thanks to Spectroscopic Abundance Measurements in Intrinsic and Extrinsic Stars

Universe, 2022
The foundations of stellar nucleosynthesis have been established more than 70 years ago. Since then, much progress has been made, both on the theoretical side, with stellar evolution and nucleosynthesis models of increasing complexity, using more and ...
Sophie Van Eck, Shreeya Shetye, Lionel Siess   +2 more
doaj   +1 more source

Impact of AGB Stars on the Chemical Evolution of Neutron-Capture Elements

Universe, 2022
In this review, we discuss the impact of s-process nucleosynthesis in asymptotic giant branch stars on the enrichment of heavy elements. We review the main steps made on this subject in the last 40 years and discuss the importance of modelling the ...
Gabriele Cescutti, Francesca Matteucci
doaj   +1 more source

Underground measurement at LUNA found no evidence for a low-energy resonance in the 6Li(p, γ)7Be reaction [PDF]

EPJ Web of Conferences, 2022
The 6Li(p,γ)7Be reaction is involved in all three main nucleosynthesis scenarios: Big Bang Nucleosynthesis, the interaction of cosmic rays with interstellar matter, and stellar nucleosynthesis.
Piatti Denise
doaj   +1 more source

Quantifying the uncertainties of chemical evolution studies. II. Stellar yields [PDF]

, 2010
This is the second paper of a series which aims at quantifying the uncertainties in chemical evolution model predictions related to the underlying model assumptions.
A. I. Karakas, Akerman, Andrievsky, Andrievsky, Andrievsky, Andrievsky, Andrievsky, Andrievsky, Andrievsky, Arnett, Asplund, Asplund, Bahcall, Baumüller, Baumüller, Bensby, Bensby, Bensby, Bergemann, Bergemann, Bihain, Bonifacio, Boothroyd, Caffau, Carigi, Carigi, Casagrande, Cayrel, Cescutti, Cescutti, Chiappini, Chiappini, Chiappini, Chiappini, Chieffi, Chiosi, D. Romano, de Jager, Decressin, Dray, Dray, Edmunds, Edvardsson, Ekström, F. Matteucci, Fabbian, Feltzing, François, Fröhlich, Gehren, Giovagnoli, Girardi, Goswami, Gratton, Grevesse, Groenewegen, Hauschildt, Henry, Hirschi, Hirschi, Hoffmeister, Honda, Iben, Israelian, Ivanova, Iwamoto, Iwamoto, Izzard, Karakas, Karakas, Karakas, Karakas, Kobayashi, Kovtyukh, Kroupa, Kudritzki, Lai, Limongi, Luck, Luck, M. Tosi, Maeder, Marcolini, Marigo, Marigo, Mashonkina, Matteucci, Matteucci, Matteucci, Matteucci, McWilliam, Meynet, Meynet, Mishenina, Nakamura, Nissen, Nissen, Nissen, Nomoto, Ohkubo, Portinari, Pumo, Ramírez, Reddy, Reddy, Reimers, Renzini, Romano, Romano, Romano, Romano, Russell, Scalo, Schaller, Shi, Shi, Siess, Spite, Straniero, Takeda, Timmes, Tinsley, Tinsley, Tosi, Umeda, Umeda, van den Hoek, Vassiliadis, Ventura, Ventura, Wallerstein, Woosley, Yoshida, Zhang   +133 more
core   +1 more source

Nuclear reactions involving light elements & BBN [PDF]

EPJ Web of Conferences
Light elements play a key role in different scenario in astrophysics, ranging from primordial nucleosynthesis up to stellar nucleosynthesis and cosmic ray nucleosynthesis.
Lamia L.
doaj   +1 more source

Stellar Evolution and Nucleosynthesis

Journal of Plasma and Fusion Research, 2003
Here we address the phases of stellar evolution and nucleosynthesis which are more important in connection to chemical enrichment and galactic chemical evolution. In the following one should keep in mind that the stellar evolution results are influenced by the physics adopted in the models.
Wako AOKI, Nobuyuki IWAMOTO
openaire   +3 more sources

Low Mass Stars or Intermediate Mass Stars? The Stellar Origin of Presolar Oxide Grains Revealed by Their Isotopic Composition

Frontiers in Astronomy and Space Sciences, 2021
Among presolar grains, oxide ones are made of oxygen, aluminum, and a small fraction of magnesium, produced by the 26Al decay. The largest part of presolar oxide grains belong to the so-called group 1 and 2, which have been suggested to form in Red Giant
S. Palmerini, S. Palmerini, S. Cristallo, S. Cristallo, M. Busso, M. Busso, M. La Cognata, M. L. Sergi, M. L. Sergi, D. Vescovi, D. Vescovi, D. Vescovi   +11 more
doaj   +1 more source

Convective–reactive nucleosynthesis of K, Sc, Cl and p-process isotopes in O–C shell mergers [PDF]

, 2017
© 2017 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. We address the deficiency of odd-Z elements P, Cl, K and Sc in Galactic chemical evolution models through an investigation of the nucleosynthesis of ...
Andrassy, R., Côté, B., Herwig, F., Jones, S., Pignatari, M., Ritter, C., Woodward, P. R.   +6 more
core   +3 more sources