Results 11 to 20 of about 699,213 (384)
The mass–metallicity and the fundamental metallicity relation revisited on a fully Te-based abundance scale for galaxies [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The relationships between stellar mass, gas-phase metallicity and star-formation rate (i.e. the mass–metallicity, MZR, and the fundamental metallicity relation, FMR) in the local Universe are revisited by fully anchoring the metallicity determination ...
M. Curti +3 more
semanticscholar +1 more source
Inducing metallicity in graphene nanoribbons via zero-mode superlattices [PDF]
Science, 2019 Making metallic ribbons In its usual two-dimensional form, graphene does not have an energy gap in its electronic structure. However, one-dimensional ribbons made of the material are semiconducting and making them metallic is tricky.
Daniel J. Rizzo +9 more
semanticscholar +1 more source
Massive Star Formation in Metal-Enriched Haloes at High Redshift
The Open Journal of Astrophysics, 2020 The formation of supermassive stars has generally been studied under the assumption of rapid accretion of pristine metal-free gas. Recently it was found, however, that gas enriched to metallicities up to Z + 10^-3 Solar can also facilitate supermassive ...
Zoltán Haiman +3 more
doaj +1 more source
The influence of metallicity on helium and CO core masses in massive stars [PDF]
Serbian Astronomical Journal, 2023 We present the results of 58 detailed evolutionary models of massive single stars and close binary systems with the Solar and Small Magellanic Cloud (SMC) metallicity computed with the MESA (Modules for Experiments in Stellar Astrophysics ...
Petrović Jelena
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The progenitors of compact-object binaries: impact of metallicity, common envelope and natal kicks [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Six gravitational wave events have been reported by the LIGO-Virgo collaboration (LVC), five of them associated with black hole binary (BHB) mergers and one with a double neutron star (DNS) merger, while the coalescence of a black hole-neutron star (BHNS)
N. Giacobbo, M. Mapelli
semanticscholar +1 more source
Grids of stellar models with rotation - I. Models from 0.8 to 120 M⊙ at solar metallicity (Z = 0.014) [PDF]
, 2011 Aims. Many topical astrophysical research areas, such as the properties of planet host stars, the nature of the progenitors of different types of supernovae and gamma ray bursts, and the evolution of galaxies, require complete and homogeneous sets of ...
S. Ekstrom +11 more
semanticscholar +1 more source
The Astrophysical Journal, 2023 The atmospheric metallicity greatly influences the composition of exoplanet atmospheres. The effect of metallicity on the thermochemical equilibrium is well studied, though its effect on the disequilibrium abundance is loosely constrained. In this study,
Vikas Soni, Kinsuk Acharyya
doaj +1 more source
The Chocolate Chip Cookie Model: Dust-to-metal Ratio of H ii Regions
The Astrophysical Journal Letters, 2023 Using a sample of face-on star-forming galaxies selected from the Sloan Digital Sky Survey, we statistically derive the typical optical depth τ _cl of individual H ii regions based on the “Chocolate Chip Cookie” model of Lu et al. (2022).
Jiafeng Lu +3 more
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Metal Preferences and Metallation [PDF]
Journal of Biological Chemistry, 2014 The metal binding preferences of most metalloproteins do not match their metal requirements. Thus, metallation of an estimated 30% of metalloenzymes is aided by metal delivery systems, with ∼ 25% acquiring preassembled metal cofactors. The remaining ∼ 70% are presumed to compete for metals from buffered metal pools.
Foster, Andrew W. +2 more
openaire +4 more sources
Computation, 2020 Quantum–chemical calculations of the electronic characteristics of carbon and boron-doped silicon polyprismanes were carried out, and the atomic hydrogen adsorption on these structures was analyzed.
Konstantin Grishakov +2 more
doaj +1 more source