Results 51 to 60 of about 128,346 (229)

Constraining properties of neutron stars with heavy-ion reactions in terrestrial laboratories

open access: yes, 2007
Heavy-ion reactions provide a unique means to investigate the equation of state (EOS) of neutron-rich nuclear matter, especially the density dependence of the nuclear symmetry energy $E_{sym}(\rho)$.
Andrew W Steiner   +10 more
core   +1 more source

Electron Density Structure Measurements With Scattered Intense Laser Beam

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Short‐pulse intense lasers have the potential to model extreme astrophysical environments in laboratories. Although there are diagnostics for energetic electrons and ions resulting from laser‐plasma interactions, the diagnostics to measure velocity distribution functions at the interaction region of the laser and plasma are limited.
K. Sakai   +25 more
wiley   +1 more source

Nuclear-Astrophysics Lessons from INTEGRAL

open access: yes, 2013
Measurements of high-energy photons from cosmic sources of nuclear radiation through ESA's INTEGRAL mission have advanced our knowledge: New data with high spectral resolution showed that characteristic gamma-ray lines from radioactive decays occur ...
Diehl, Roland
core   +1 more source

Mid‐Infrared Integrated Photonics: Material Platforms and Emerging Applications

open access: yesLaser &Photonics Reviews, EarlyView.
Mid‐infrared (MIR) integrated photonics enables advanced chemical and biological sensing through the unique absorption features of molecules in the 2–20 µm range. This review highlights recent material advances such as chalcogenide glasses, silicon, and graphene and explores MIR applications in environmental monitoring, medical diagnostics ...
Muhammad Ali Butt   +2 more
wiley   +1 more source

Quantum Iterative Methods for Solving Differential Equations with Application to Computational Fluid Dynamics

open access: yesAdvanced Quantum Technologies, EarlyView.
Quantum algorithms for differential equations are developed with applications in computational fluid dynamics. The methods follow an iterative simulation framework, implementing Jacobi and Gauss–Seidel schemes on quantum registers through linear combinations of unitaries.
Chelsea A. Williams   +4 more
wiley   +1 more source

Reaction models in nuclear astrophysics

open access: yesEPJ Web of Conferences, 2016
We present different reaction models commonly used in nuclear astrophysics, in particular for the nucleosynthesis of light elements. Pioneering works were performed within the potential model, where the internal structure of the colliding nuclei is ...
Descouvemont Pierre
doaj   +1 more source

Nucleosynthesis in Type Ia Supernovae, Classical Novae, and Type I X-Ray Bursts. A Primer on Stellar Explosions [PDF]

open access: yesEPJ Web of Conferences
Nuclear astrophysics aims at unraveling the cosmic origins of chemical elements and the physical processes powering stars. It constitutes a truly multidisciplinary field, that integrates tools, advancements, and accomplishments from theoretical ...
José Jordi
doaj   +1 more source

Non-explosive hydrogen and helium burnings: Abundance predictions from the NACRE reaction rate compilation [PDF]

open access: yes, 1999
The abundances of the isotopes of the elements from C to Al produced by the non-explosive CNO, NeNa and MgAl modes of hydrogen burning, as well as by helium burning, are calculated with the thermonuclear rates recommended by the European compilation of ...
Arnould, M., Goriely, S., Jorissen, A.
core   +1 more source

Ultra-sensitive in-beam gamma-ray spectroscopy for nuclear astrophysics at LUNA

open access: yes, 2008
Ultra-sensitive in-beam gamma-ray spectroscopy studies for nuclear astrophysics are performed at the LUNA (Laboratory for Underground Nuclear Astrophysics) 400 kV accelerator, deep underground in Italy's Gran Sasso laboratory.
A. CACIOLLI   +32 more
core   +1 more source

Tuning Ultra‐Narrow Direct Bandgap in α‐Sn Nanocrystals: A CMOS‐Compatible Approach for THz Applications

open access: yesSmall, EarlyView.
α‐Sn NPs of different sizes are stabilized on Si wafer by means of a CMOS‐compatible process employing microwave irradiation. Unprecedented tunability of the ultranarrow bandgap energy of α‐Sn between 64 and 137 meV (15–35 THz) due to quantum confinement is demonstrated.
Tiziano Bertoli   +19 more
wiley   +1 more source

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