Results 111 to 120 of about 111,155 (292)

High-resolution spectroscopy of extremely metal-poor stars in the least evolved galaxies: Bootes II

open access: yes, 2015
We present high-resolution Magellan/MIKE spectra of the four brightest confirmed red giant stars in the ultra-faint dwarf galaxy Bootes II (Boo II). These stars all inhabit the metal-poor tail of the Boo II metallicity distribution function. The chemical
Frebel, Anna   +3 more
core   +1 more source

Sensitivity studies for the weak r process: neutron capture rates

open access: yesAIP Advances, 2014
Rapid neutron capture nucleosynthesis involves thousands of nuclear species far from stability, whose nuclear properties need to be understood in order to accurately predict nucleosynthetic outcomes.
R. Surman   +5 more
doaj   +1 more source

MINCE

open access: yesAstronomy & Astrophysics
Context. Most of the studies on the determination of the chemical composition of metal-poor stars have been focused on the search of the most pristine stars, searching for the imprints of the ejecta of the first supernovae. Apart from the rare and very interesting r-enriched stars, few elements are measurable in the very metal-poor stars.
P. François   +26 more
openaire   +6 more sources

Recent results in nuclear astrophysics at the n_TOF facility at CERN [PDF]

open access: yes, 2016
The neutron time of flight (n_TOF) facility at CERN is a spallation source characterized by a white neutron spectrum. The innovative features of the facility, in the two experimental areas, (20 m and 185 m), allow for an accurate determination of the ...
Aberle, O.   +15 more
core  

Sub-barrier capture reactions with $^{16,18}$O beams

open access: yes, 2012
Various sub-barrier capture reactions with beams $^{16,18}$O are treated within the quantum diffusion approach.
Adamian, G. G.   +4 more
core   +2 more sources

Muon capture on the deuteron and the neutron-neutron scattering length

open access: yesPhysical Review C, 2014
5 pages, 2 figures; revisited version accepted for publication on Phys.
MARCUCCI, LAURA ELISA, R. Machleidt
openaire   +4 more sources

Dynamical Capture Binary Neutron Star Mergers

open access: yes, 2012
We study dynamical capture binary neutron star mergers as may arise in dense stellar regions such as globular clusters. Using general-relativistic hydrodynamics, we find that these mergers can result in the prompt collapse to a black hole or in the ...
Antonini   +23 more
core   +1 more source

Research on Evaporation Characteristics and Safe Storage Duration of Marine Liquid Hydrogen Storage Tanks Under the Coupling Effect of Heat Leakage and Sloshing

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Liquid hydrogen, a zero‐carbon and high–energy‐density fuel, is a promising option for future oceangoing vessels. During maritime transportation, onboard cryogenic tanks are exposed to ambient heat leakage and ship‐induced roll motion, which can trigger sloshing and fundamentally modify the coupled thermo‐fluid processes governing boil‐off and
Yan Deng   +5 more
wiley   +1 more source

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+2 more sources

Measurement of the neutron capture cross-section of 236U [PDF]

open access: yes, 2010
Proposal: Measurement of the neutron capture cross-section of ...
Barbagallo, Massimo   +4 more
core   +1 more source

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