Results 61 to 70 of about 3,128 (211)

Nucleosynthesis in stellar flares

open access: yes, 2008
12 pages, 3 figures, contribution to the Proceedings of the XIXemes Rencontres de Blois, Matter and energy in the Universe, Blois, France, May ...
Tatischeff, V.   +2 more
openaire   +2 more sources

Stellar Evolution, SN Explosion, and Nucleosynthesis

open access: yes, 2022
42 pages, 17 figures; Invited chapter for Handbook of X-ray and Gamma-ray Astrophysics (Eds. C. Bambi and A. Santangelo, Springer Singapore, expected in 2022).
openaire   +2 more sources

Application of Laboratory Atomic Physics to Some Significant Stellar Chemical Composition Questions

open access: yesAtoms, 2018
This brief review highlights some current issues in Galactic stellar nucleosynthesis, and some recent laboratory studies by the Wisconsin atomic physics group that have direct application to stellar spectroscopy to advance our understanding of the ...
Christopher Sneden   +2 more
doaj   +1 more source

Underground Measurements of Nuclear Reaction Cross-Sections Relevant to AGB Stars

open access: yesUniverse, 2021
Nuclear reaction cross sections are essential ingredients to predict the evolution of AGB stars and understand their impact on the chemical evolution of our Galaxy.
Chemseddine Ananna   +13 more
doaj   +1 more source

Two Micron‐Size Dark Dimensions

open access: yesFortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui   +2 more
wiley   +1 more source

Nuclear cross sections, nuclear structure and stellar nucleosynthesis

open access: yes, 2003
The role of nuclear reactions (strong, weak and electromagnetic) and nuclear structure effects are discussed in a number of stellar applications. We address fusion cross sections in stellar evolution, neutrino-induced reactions in type II supernovae ...
Panov, I.   +9 more
core   +2 more sources

Can We Draw Conclusions on Supernova Shock Wave Propagation Using Short‐Lived Radioactive Isotopes?

open access: yesAstronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT We run a three‐dimensional Galactic chemical evolution (GCE) model to follow the propagation of 53Mn (exclusively produced from type Ia supernovae, SNIa), 60Fe (exclusively produced from core‐collapse supernovae, CCSNe), 182Hf (exclusively produced from intermediate mass stars, IMSs), and 244Pu (exclusively produced from neutron star mergers ...
Benjamin Wehmeyer   +5 more
wiley   +1 more source

Post-AGB Stars as Tracers of AGB Nucleosynthesis: An Update

open access: yes, 2022
The chemical evolution of galaxies is governed by the chemical yields from stars, and here we focus on the important contributions from asymptotic giant branch (AGB) stars. AGB nucleosynthesis is, however, still riddled with complexities.
Devika Kamath   +3 more
core   +1 more source

Methyltransferase‐Like 3‐Mediated N6‐Methyladenosine Modification on RNAs: A Novel Perspective for the Pathogenesis and Treatment of Bone Diseases

open access: yesJournal of Cellular and Molecular Medicine, Volume 29, Issue 5, March 2025.
ABSTRACT Osteoarthritis, osteoporosis, and osteosarcoma are prevalent osseous pathologies associated with the aberrant functionality of chondrocytes, osteoclasts, and osteoblasts, respectively. These conditions frequently exhibit therapeutic resistance and possess a high mortality risk, thus representing substantial health threats.
Dongqiong Xiao   +3 more
wiley   +1 more source

Mass‐Loss, Composition and Observational Signatures of Stellar Winds From X‐Ray Bursts

open access: yesAstronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT X‐Ray bursts (XRBs) are powerful thermonuclear events on the surface of accreting neutron stars (NSs), which can synthesize intermediate‐mass elements. Although the high surface gravity prevents an explosive ejection, a small fraction of the envelope may be ejected by radiation‐driven winds.
Yago Herrera   +4 more
wiley   +1 more source

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