Results 1 to 10 of about 25,535 (312)
Universe, 2022 In this paper, we make use of data collected for open cluster members by high-resolution spectroscopic surveys and programmes (i.e., APOGEE, Gaia-ESO, GALAH, OCCASO, and SPA). These data have been homogenised and then analysed as a whole.
L Spina, L Magrini, Katia Cunha
exaly +3 more sources
Heavy Metal Rules. I. Exoplanet Incidence and Metallicity
Geosciences (Switzerland), 2019 The discovery of only a handful of exoplanets required establishing a correlation between giant planet occurrence and metallicity of their host stars.
V Adibekyan
exaly +3 more sources
A study on the metallicity gradients in the galactic disk using open clusters
Frontiers in Astronomy and Space SciencesWe study the metallicity distribution and evolution in the galactic disk based on the largest sample of open star clusters in the galaxy. From the catalog of 1,879 open clusters in the range of galactocentric distance (RGC) from 4 to 20 kpc, we ...
exaly +3 more sources
Results in Physics, 2017 The electronic structure, magnetism and half-metallicity of quaternary Heusler compounds NbCoCrAl and NbRhCrAl were investigated theoretically by using first-principles calculations.
G D Liu, Xiaotian Wang, Enke Liu
exaly +3 more sources
Nanomaterials, 2021 Determining the metallicity and semiconductivity of a multi-walled carbon nanotube (MWCNT) bundle plays a particularly vital role in its interconnection with the metal electrode of an integrated circuit.
Quan Yang +10 more
doaj +1 more source
Progenitors of Long-Duration Gamma-ray Bursts
Galaxies, 2021 We review the current scenario of long-duration Gamma-ray burst (LGRB) progenitors, and in addition, present models of massive stars for a mass range of 10–150M⊙ with ΔM=10M⊙ and rotation rate v/vcrit=0 to 0.6 with a velocity resolution Δv/vcrit=0.1.
Arpita Roy
doaj +1 more source
Universe, 2021 The growing database of exoplanets has shown us the statistical characteristics of various exoplanet populations, providing insight towards their origins.
Jonathan H. Jiang +4 more
doaj +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
doaj +1 more source
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