Results 101 to 110 of about 767 (211)

Cluster Analysis of Presolar Silicon Carbide Grains: Evaluation of Their Classification and Astrophysical Implications. [PDF]

Astrophys J Lett, 2021
Boujibar A, Howell S, Zhang S, Hystad G, Prabhu A, Liu N, Stephan T, Narkar S, Eleish A, Morrison SM, Hazen RM, Nittler LR.   +11 more
europepmc   +1 more source

Measurement of the 25Mg(α,n)28Si reaction cross section at LNL

EPJ Web of Conferences, 2014
The detection of the 1809 keV emission line associated with the decay of 26Al in the interstellar medium provides a direct evidence of recent nucleosynthesis events in our galaxy.
Depalo R., Caciolli A., Marchi T., Appannababu S., Blasi N., Broggini C., Camera F., Cinausero M., Collanzuol G., Fabris D., Gramegna F., Kravchuk V. L., Leone M., Lombardi A., Mastinu P., Menegazzo R., Montagnoli G., Prete G., Rigato V., Rossi Alvarez C., Wieland O.   +20 more
doaj   +1 more source

Overview of stellar nucleosynthesis in explosive environments and recent experimental highlights

International audienceExplosive stellar environments such as neutron star mergers, supernovae and X-ray bursts contribute significantly to the synthesis of many chemical elements known in the universe.
Avila, M.L, Lopez-Saavedra, E, M. L. Avila, Alruwaili, M, Chipps, K.A, K. A. Chipps, Anastasiou, M, Bhatt, K, Fougères, C, Rehm, K.E, H. Jayatissa, D. Santiago-Gonzalez, M. Anastasiou, M. Alruwaili, E. Lopez-Saavedra, C. Fougères, A. M. Laird, K. Bhatt, Laird, A.M, Santiago-Gonzalez, D, Jayatissa, H, K. E. Rehm   +21 more
core   +1 more source

Explosive Nucleosynthesis in Core-collapse Type II Supernovae: Insights from New C, N, Si, and Al–Mg Isotopic Compositions of Presolar Grains

The Astrophysical Journal Letters
We report C, N, Si, and Al–Mg isotope data for 39 presolar X silicon carbide (SiC) and four silicon nitride grains—a group of presolar grains that condensed in the remnants of core-collapse Type II supernovae (CCSNe)—isolated from the Murchison meteorite.
Nan Liu, Conel M. O’D. Alexander, Bradley S. Meyer, Larry R. Nittler, Jianhua Wang, Rhonda M. Stroud   +5 more
doaj   +1 more source

Silicon isotope constraints on terrestrial planet accretion. [PDF]

Nature, 2023
Onyett IJ, Schiller M, Makhatadze GV, Deng Z, Johansen A, Bizzarro M.   +5 more
europepmc   +1 more source

Recent results in explosive and s-process nucleosynthesis from measurements on radioactive and stable targets

, 1993
Measurements of (n,p) and (n,{alpha}) cross sections are crucial for a better understanding of many scenarios of nucleosynthesis. Current problems in which such reactions play a roll include the possible synthesis of heavy element during the big bang ...
Koehler, P. E., Schatz, H., Kaeppeler, F.   +2 more
core  

The $\gamma$-process nucleosynthesis in core-collapse supernovae II. Effect of the explosive recipe

The $\gamma$-process in core-collapse supernovae (CCSNe) can produce a number of neutron-deficient stable isotopes heavier than iron (p-nuclei). However, current model predictions do to not fully reproduce the solar abundances.
Lugaro, Maria, Roberti, Lorenzo, Fryer, Chris L., Pignatari, Marco   +3 more
core   +1 more source

Explosive Nucleosynthesis [PDF]

, 2020
openaire   +2 more sources

The Impact of Recent LUNA Measurements of NeNa Reactions on ²⁶Al Stellar Nucleosynthesis

Universe
Recent measurements performed by the LUNA(Laboratory for Underground Nuclear Astrophysics) collaboration between 2019 and 2024 have provided the most precise direct determinations to date of several key reaction rates in the NeNa cycle, specifically the ...
Umberto Battino, Tommaso Gallo, Diego Vescovi, Sergio Cristallo, Andreas Best, Oscar Straniero, Eliana Masha, Erin R. Higgins, Raphael Hirschi   +8 more
doaj   +1 more source

Forward-looking insights in laser-generated ultra-intense γ-ray and neutron sources for nuclear application and science. [PDF]

Nat Commun, 2022
Günther MM, Rosmej ON, Tavana P, Gyrdymov M, Skobliakov A, Kantsyrev A, Zähter S, Borisenko NG, Pukhov A, Andreev NE.   +9 more
europepmc   +1 more source