Results 31 to 40 of about 699,213 (384)

The evolution of the mass-metallicity relation and its scatter in IllustrisTNG [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2017
The coevolution of galaxies and their metal content serves as an important test for galaxy feedback models. We analyze the distribution and evolution of metals within the IllustrisTNG simulation suite with a focus on the gas-phase mass-metallicity ...
P. Torrey   +10 more
semanticscholar   +1 more source

Metallicity evolution of AGNs from UV emission-lines based on a new index [PDF]

open access: yes, 2014
We analyzed the evolution of the metallicity of the gas with the redshift for a sample of AGNs in a very wide redshift range ...
Cardaci, Monica V.   +3 more
core   +2 more sources

“Direct” Gas-phase Metallicity in Local Analogs of High-redshift Galaxies: Empirical Metallicity Calibrations for High-redshift Star-forming Galaxies [PDF]

open access: yesAstrophysical Journal, 2018
We study the direct gas-phase oxygen abundance using the well-detected auroral line [O iii]λ4363 in the stacked spectra of a sample of local analogs of high-redshift galaxies.
F. Bian, L. Kewley, M. Dopita
semanticscholar   +1 more source

The Grism Lens-Amplified Survey from Space (GLASS) X. Sub-kpc resolution gas-phase metallicity maps at cosmic noon behind the Hubble Frontier Fields cluster MACS1149.6+2223 [PDF]

open access: yes, 2016
(Abridged) We combine deep HST grism spectroscopy with a new Bayesian method to derive maps of gas-phase metallicity, nebular dust extinction, and star-formation rate for 10 star-forming galaxies at high redshift ($1 ...
Abramson, Louis E.   +19 more
core   +3 more sources

Metal Metal

open access: yesArtilugio, 2023
METAL METAL es una pieza electroacústica creada en 2022. El material sonoro utilizado en la composición fue grabado durante la pandemia mundial de Covid-19. Aprovechando el aislamiento obligatorio, se realizaron sesiones de improvisación rítmica, tímbrica y textural con latas de aluminio. Estas se registraron con un grabador digital Zoom H4.
openaire   +1 more source

Metallic hydrogen [PDF]

open access: yesJournal of Physics: Condensed Matter, 2018
For over eighty years, scientists have been trying to produce lab-made metallic hydrogen, the holy grail of alternative fuels. In that process, diamond anvils must withstand pressures greater than those at the center of the earth—no mean feat. Recent research may have finally achieved hydrogen’s metallic state.
Ranga Dias, Isaac Silvera
openaire   +2 more sources

Photometric Metallicity and Distance Estimates for ∼136,000 RR Lyrae Stars from Gaia Data Release 3

open access: yesThe Astrophysical Journal, 2023
We present a sample of 135,873 RR Lyrae stars (RRLs) with precise photometric metallicity and distance estimates from our newly calibrated P – ϕ _31 – R _21 –[Fe/H]/ P – R _21 –[Fe/H] and G -band absolute magnitude–metallicity relations.
Xin-Yi Li   +4 more
doaj   +1 more source

Spintronic phase transition of graphene/BN/graphene van de Waals heterostructures

open access: yesResults in Physics, 2022
Based on a single-orbital tight-binding (TB) Hubbard model under mean-field approximation, we study band structure and half-metallicity of zigzag graphene/boron nitride/graphene (Z-G/BN/G) trilayer nanoribbon systems.
Quanyuan Cao, Lei Xu, Jun Zhang
doaj   +1 more source

Nearby supernova host galaxies from the CALIFA Survey: II. SN environmental metallicity [PDF]

open access: yes, 2016
The metallicity of a supernova (SN) progenitor, together with its mass, is one of the main parameters that rules their outcome.
Badenes, C.   +18 more
core   +9 more sources

Merging black hole binaries: the effects of progenitor's metallicity, mass-loss rate and Eddington factor [PDF]

open access: yes, 2017
The first four gravitational wave events detected by LIGO were all interpreted as merging black hole binaries (BHBs), opening a new perspective on the study of such systems. Here we use our new population-synthesis code MOBSE, an upgraded version of BSE (
N. Giacobbo, M. Mapelli, M. Spera
semanticscholar   +1 more source

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