Results 41 to 50 of about 24,208 (239)

θ-dependence of light nuclei and nucleosynthesis

Physical Review Research, 2020
We investigate the impact of the QCD vacuum at nonzero θ on the properties of light nuclei, Big Bang nucleosynthesis, and stellar nucleosynthesis. Our analysis starts with a calculation of the θ-dependence of the neutron-proton mass difference and ...
Dean Lee, Ulf-G. Meißner, Keith A. Olive, Mikhail Shifman, Thomas Vonk   +4 more
doaj   +1 more source

The Influence of Nuclear Reactions and Nuclear Structure in Astrophysics

EPJ Web of Conferences, 2017
Nuclear reactions play an important role for the energy production and the nucleosynthesis in stars. New facilities, able to accelerate radioactive nuclei or high-intensity stable beams have allowed us to measure in the laboratory reactions involving ...
Rehm K. E.
doaj   +1 more source

Nucleosynthesis in Stellar Explosions [PDF]

, 1984
The final evolution and explosion of stars from 10 M⊙ to 106 M⊙ are reviewed with emphasis on factors affecting the expected nucleosynthesis. We order our paper in a sequence of decreasing mass. If, as many suspect, the stellar birth function was peaked towards larger masses at earlier times (see e.g., Silk 1977; but also see Palla, Salpeter, and ...
Woosley, S. E., Axelrod, T. S., Weaver, T. A.   +2 more
openaire   +1 more source

Exploring the origin of the rarest stable isotopes naturally occurring on Earth with real photon beams [PDF]

EPJ Web of Conferences
This lecture brings into focus research work that aims to advance fundamental knowledge on a forefront topic in nuclear astrophysics – the nucleosynthesis beyond Fe of the rarest stable isotopes naturally occurring on Earth (the origin of p-nuclei).
Banu Adriana
doaj   +1 more source

A new 12C+12C reaction rate: Impact on stellar evolution [PDF]

EPJ Web of Conferences, 2023
Among the reactions driving stellar evolution during carbon burning, 12C + 12C fusion provides the key ingredients. This system reveals many resonances, but also regions with suppressed fusion cross-sections.
Monpribat E., Choplin A., Martinet S., Courtin S., Heine M., Adsley P., Curien D., Dumont T., Ekström S., Jenkins D.G., Moukaddam M., Nippert J., Tsiatsiou S., Meynet G.   +13 more
doaj   +1 more source

Nucleosynthesis of $^{92}$Nb and the relevance of the low-lying isomer at 135.5 keV [PDF]

, 2016
Background: Because of its half-life of about 35 million years, 92Nb is considered as a chronometer for nucleosynthesis events prior to the birth of our sun. The abundance of 92Nb in the early solar system can be derived from meteoritic data.
Mohr, Peter
core   +2 more sources

The NuGrid AGB Evolution and Nucleosynthesis Data Set

Universe, 2022
Asymptotic Giant Branch (AGB) stars play a key role in the chemical evolution of galaxies. These stars are the fundamental stellar site for the production of light elements such as C, N and F, and half of the elements heavier than Fe via the slow neutron
Umberto Battino, Marco Pignatari, Ashley Tattersall, Pavel Denissenkov, Falk Herwig   +4 more
doaj   +1 more source

Effects of thermohaline instability and rotation-induced mixing on the evolution of light elements in the Galaxy : D, 3He and 4He [PDF]

, 2012
Recent studies of low- and intermediate-mass stars show that the evolution of the chemical elements in these stars is very different from that proposed by standard stellar models.
Asplund, Balser, Balser, Balser, Bania, Bennett, Boothroyd, Burles, C. Charbonnel, C. Chiappini, Charbonnel, Charbonnel, Charbonnel, Charbonnel, Charbonnel, Chiappini, Chiappini, Chiappini, Coc, Costa, Cyburt, D. Romano, Dearborn, Denissenkov, Denissenkov, Edmunds, Eggleton, Eggleton, Ekström, Epstein, F. Matteucci, Frogel, Galli, Galli, Geiss, Geiss, Geiss, Gloeckler, Grevesse, Groenewegen, Hirschi, Hirschi, Hogan, Hébrard, Hébrard, Iben, Iwamoto, Jenkins, Kobayashi, Krishnamurti, Lagarde, Larson, Linsky, M. Tosi, Maeder, Marigo, Matteucci, Meynet, N. Lagarde, Oliveira, Palla, Peebles, Pettini, Prantzos, Prodanović, Prodanović, Reeves, Rogers, Romano, Romano, Romano, Rood, Rood, Rood, Rosenblum, Serenelli, Songaila, Sonneborn, Spergel, Steigman, Steigman, Tosi, Traxler, Truran, Ulrich, Vidal-Madjar, Wagoner, Weiss, Zahn   +88 more
core   +2 more sources

Nucleosynthesis in Core-Collapse Supernovae and GRB--Metal-Poor Star Connection [PDF]

, 2007
We review the nucleosynthesis yields of core-collapse supernovae (SNe) for various stellar masses, explosion energies, and metallicities. Comparison with the abundance patterns of metal-poor stars provides excellent opportunities to test the explosion ...
H. Umeda, K. Maeda, K. Nomoto, Kurt Weiler, M. Tanaka, N. Tominaga, Stefan Immler   +6 more
core   +2 more sources

STELLAR NUCLEOSYNTHESIS IN THE HYADES OPEN CLUSTER [PDF]

The Astrophysical Journal, 2009
We report a comprehensive light element (Li, C, N, O, Na, Mg, and Al) abundance analysis of three solar-type main sequence (MS) dwarfs and three red giant branch (RGB) clump stars in the Hyades open cluster using high-resolution and high signal-to-noise spectroscopy.
Schuler, Simon C, King, Jeremy R, The, Lih-Sin   +2 more
openaire   +2 more sources