Results 41 to 50 of about 699,213 (384)

Chemodynamic evolution of dwarf galaxies in tidal fields [PDF]

open access: yes, 2016
The mass-metallicity relation shows that the galaxies with the lowest mass have the lowest metallicities. As most dwarf galaxies are in group environments, interaction effects such as tides could contribute to this trend.
Martel, Hugo   +2 more
core   +2 more sources

Metallicity-dependent signatures in the Kepler planets [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
Using data from the California-Kepler-Survey (CKS) we study trends in planetary properties with host star metallicity for close-in planets. By incorporating knowledge of the properties of the planetary radius gap identified by the CKS survey, we are able
J. Owen, R. Murray-Clay
semanticscholar   +1 more source

Heavy Metal Rules. I. Exoplanet Incidence and Metallicity

open access: yesGeosciences, 2019
The discovery of only a handful of exoplanets required establishing a correlation between giant planet occurrence and metallicity of their host stars.
Vardan Adibekyan
doaj   +1 more source

Cluster melting: new, limiting, and liminal phenomena

open access: yesAdvances in Physics: X, 2018
The thermodynamic behaviour of clusters and nanoscale structures is both a challenge to the statistical basis of the theory, and of paramount importance to experiment.
Nicola Gaston
doaj   +1 more source

F stars, metallicity, and the ages of red galaxies at z > 1 [PDF]

open access: yes, 2001
We explore whether the rest-frame near-UV spectral region, observable in high-redshift galaxies via optical spectroscopy, contains sufficient information to allow the degeneracy between age and metallicity to be lifted.
A. F. Heavens   +37 more
core   +3 more sources

The MOSDEF Survey: A Stellar Mass–SFR–Metallicity Relation Exists at z ∼ 2.3 [PDF]

open access: yes, 2017
We investigate the nature of the relation among stellar mass, star formation rate, and gas-phase metallicity (the –SFR–Z relation) at high redshifts using a sample of 260 star-forming galaxies at z ∼ 2.3 from the MOSDEF survey.
R. Sanders   +17 more
semanticscholar   +1 more source

Massive black hole binaries from runaway collisions: the impact of metallicity [PDF]

open access: yes, 2016
The runaway collision scenario is one of the most promising mechanisms to explain the formation of intermediate-mass black holes (IMBHs) in young dense star clusters.
M. Mapelli
semanticscholar   +1 more source

Stellar population gradients from cosmological simulations: dependence on mass and environment in local galaxies [PDF]

open access: yes, 2010
The age and metallicity gradients for a sample of group and cluster galaxies from N-body+hydrodynamical simulation are analyzed in terms of galaxy stellar mass.
A. D. Romeo   +41 more
core   +1 more source

Similar star formation rate and metallicity variability time-scales drive the fundamental metallicity relation [PDF]

open access: yes, 2017
The fundamental metallicity relation (FMR) is a postulated correlation between galaxy stellar mass, star formation rate (SFR), and gas-phase metallicity.
P. Torrey   +19 more
semanticscholar   +1 more source

Ca II TRIPLET SPECTROSCOPY OF SMALL MAGELLANIC CLOUD RED GIANTS. IV. ABUNDANCES FOR A LARGE SAMPLE OF FIELD STARS AND COMPARISON WITH THE CLUSTER SAMPLE [PDF]

open access: yes, 2016
This paper represents a major step forward in the systematic and homogeneous study of Small Magellanic Cloud (SMC) star clusters and field stars carried out by applying the calcium triplet technique.
Carraro, Giovanni   +5 more
core   +1 more source

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