Results 1 to 10 of about 581,030 (146)

The chemical enrichment in the early Universe as probed by JWST via direct metallicity measurements at z ∼ 8 [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2022
We analyse the chemical properties of three z∼ 8 galaxies behind the galaxy cluster SMACS J0723.3-7327, observed as part of the Early Release Observations programme of the James Webb Space Telescope (JWST).
M. Curti   +32 more
semanticscholar   +1 more source

The effect of the metallicity-specific star formation history on double compact object mergers [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
We investigate the impact of uncertainty in the metallicity-specific star formation rate over cosmic time on predictions of the rates and masses of double compact object mergers observable through gravitational waves.
C. Neijssel   +9 more
semanticscholar   +1 more source

The mass–metallicity and the fundamental metallicity relation revisited on a fully Te-based abundance scale for galaxies [PDF]

open access: yesMonthly 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

Metal Preferences and Metallation [PDF]

open access: yesJournal 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   +5 more sources

The Origin of the Mass-Metallicity Relation: Insights from 53,000 Star-forming Galaxies in the Sloan Digital Sky Survey [PDF]

open access: yes, 2004
We utilize Sloan Digital Sky Survey imaging and spectroscopy of ~53,000 star-forming galaxies at z ~ 0.1 to study the relation between stellar mass and gas-phase metallicity.
C. Tremonti   +11 more
semanticscholar   +1 more source

Inducing metallicity in graphene nanoribbons via zero-mode superlattices [PDF]

open access: yesScience, 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

The progenitors of compact-object binaries: impact of metallicity, common envelope and natal kicks [PDF]

open access: yesMonthly 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

The Close Binary Fraction of Solar-type Stars Is Strongly Anticorrelated with Metallicity [PDF]

open access: yesAstrophysical Journal, 2018
There is now strong evidence that the close binary fraction (P < 104 days; a < 10 au) of solar-type stars (M1 ≈ 0.6–1.5 ) decreases significantly with metallicity. Although early surveys showed that the observed spectroscopic binary (SB) fractions in the
M. Moe, K. Kratter, C. Badenes
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]

open access: yes, 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

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