Results 101 to 110 of about 21,814 (256)

Direct and Indirect Measurements of the ¹⁹F(p,α)¹⁶O Reaction at Astrophysical Energies Using the LHASA Detector and the Trojan Horse Method

Universe
Fluorine is one of the most interesting elements in nuclear astrophysics. Its abundance can provide important hints to constrain the stellar models since fluorine production and destruction are strictly connected to the physical conditions inside the ...
Giovanni L. Guardo, Giuseppe G. Rapisarda, Dimiter L. Balabanski, Giuseppe D’Agata, Alessia Di Pietro, Pierpaolo Figuera, Marco La Cognata, Marco La Commara, Livio Lamia, Dario Lattuada, Catalin Matei, Marco Mazzocco, Alessandro A. Oliva, Sara Palmerini, Teodora Petruse, Rosario G. Pizzone, Stefano Romano, Maria Letizia Sergi, Roberta Spartá, Xuedou Su, Aurora Tumino, Nikola Vukman   +21 more
doaj   +1 more source

The bulk mineralogy, elemental composition, and water content of the Winchcombe CM chondrite fall

Meteoritics &Planetary Science, Volume 59, Issue 5, Page 1006-1028, May 2024.
Abstract On the microscale, the Winchcombe CM carbonaceous chondrite contains a number of lithological units with a variety of degrees of aqueous alteration. However, an understanding of the average hydration state is useful when comparing to other meteorites and remote observations of airless bodies.
H. C. Bates, A. J. King, K. S. Shirley, E. Bonsall, C. Schröder, F. Wombacher, T. Fockenberg, R. J. Curtis, N. E. Bowles   +8 more
wiley   +1 more source

Production of Lithium and Heavy Elements in AGB Stars Experiencing PIEs

Galaxies
Asymptotic giant branch (AGB) stars can experience proton ingestion events (PIEs), leading to a rich nucleosynthesis. During a PIE, the intermediate neutron capture process (i-process) develops, leading to the production of trans-iron elements.
Arthur Choplin, Lionel Siess, Stephane Goriely, Sebastien Martinet   +3 more
doaj   +1 more source

Heavy Elements and Electromagnetic Transients from Neutron Star Mergers

Annalen der Physik, Volume 536, Issue 2, February 2024.
Astro‐(physics) has made major leaps forward through the combined information provided by both gravitational waves and electromagnetic emission from the first detected neutron star merger event. This review provides an up‐to‐date overview of today's understanding of neutron star mergers and their electromagnetic emission and it discusses possible ...
Stephan Rosswog, Oleg Korobkin
wiley   +1 more source

PUSHing Core-collapse Supernovae to Explosions in Spherical Symmetry. III. Nucleosynthesis Yields [PDF]

Astrophysical Journal, 2018
In a previously presented proof-of-principle study, we established a parameterized spherically symmetric explosion method (PUSH) that can reproduce many features of core-collapse supernovae (CCSNe) for a wide range of pre-explosion models.
S. Curtis, K. Ebinger, C. Frohlich, M. Hempel, A. Perego, M. Liebendorfer, Friedrich-Karl Thielemann   +6 more
semanticscholar   +1 more source

Machine learning opportunities for nucleosynthesis studies

Frontiers in Astronomy and Space Sciences
Nuclear astrophysics is an interdisciplinary field focused on exploring the impact of nuclear physics on the evolution and explosions of stars and the cosmic creation of the elements.
Michael S. Smith, Dan Lu
doaj   +1 more source

Modeling of Cosmogenic Cr Isotopes Produced in Lunar Rocks Compared With Existing Calculations and Measurements

Journal of Geophysical Research: Planets, Volume 129, Issue 2, February 2024.
Abstract The nucleosynthetic Cr isotope anomalies provides useful information to trace the source and origin of extraterrestrial samples, but it is usually influenced by high‐energy cosmic rays, and evaluating such effect of cosmic rays in lunar samples is especially important.
Bailiang Liu, Jingnan Guo, Mikhail I. Dobynde, Jia Liu, Yingnan Zhang, Liping Qin   +5 more
wiley   +1 more source

Primordial nucleosynthesis [PDF]

International Journal of Modern Physics E, 2017
Primordial nucleosynthesis, or big bang nucleosynthesis (BBN), is one of the three evidences for the big bang model, together with the expansion of the universe and the cosmic microwave background. There is a good global agreement over a range of nine orders of magnitude between abundances of4He, D,3He and7Li deduced from observations, and calculated ...
Coc, Alain, Vangioni, Elisabeth
openaire   +4 more sources

β-delayed Fission in r-process Nucleosynthesis [PDF]

Astrophysical Journal, 2018
We present β-delayed neutron emission and β-delayed fission (βdf) calculations for heavy, neutron-rich nuclei using the coupled Quasi-Particle Random Phase Approximation plus Hauser-Feshbach (QRPA+HF) approach.
M. Mumpower, T. Kawano, T. Sprouse, N. Vassh, E. Holmbeck, R. Surman, P. Möller   +6 more
semanticscholar   +1 more source

Nuclear astrophysicists at war

Natural Sciences, Volume 4, Issue 1, January 2024.
The Manhattan program not only opened the path to the nuclear age for humans, but also triggered a lot of new questions and research directions in nuclear physics and astrophysics that still inform the ideas in these fields today. Abstract The question of energy production in stars stimulated an entire generation of young physicists in the 1930s who ...
Michael Wiescher, Karlheinz Langanke
wiley   +1 more source