Results 31 to 40 of about 656,950 (323)

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

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

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

CHEMICAL CARTOGRAPHY WITH APOGEE: METALLICITY DISTRIBUTION FUNCTIONS AND THE CHEMICAL STRUCTURE OF THE MILKY WAY DISK [PDF]

open access: yes, 2015
Using a sample of 69,919 red giants from the SDSS-III/APOGEE Data Release 12, we measure the distribution of stars in the [α/Fe] versus [Fe/H] plane and the metallicity distribution functions (MDFs) across an unprecedented volume of the Milky Way disk ...
M. Hayden   +35 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

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

Slater-Pauling behavior and origin of the half-metallicity of the full-Heusler alloys [PDF]

open access: yes, 2002
Using the full-potential screened Korringa-Kohn-Rostoker method we study the full-Heusler alloys based on Co, Fe, Rh, and Ru. We show that many of these compounds show a half-metallic behavior; however, in contrast to the half-Heusler alloys the energy ...
I. Galanakis   +2 more
semanticscholar   +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

SDSS-IV MaNGA : the impact of diffuse ionized gas on emission-line ratios, interpretation of diagnostic diagrams and gas metallicity measurements [PDF]

open access: yes, 2016
Diffuse Ionized Gas (DIG) is prevalent in star-forming galaxies. Using a sample of 365 nearly face-on star-forming galaxies observed by MaNGA, we demonstrate how DIG in star-forming galaxies impacts the measurements of emission line ratios, hence the ...
Kai Zhang   +28 more
semanticscholar   +1 more source

The origin and evolution of the galaxy mass–metallicity relation [PDF]

open access: yes, 2015
We use high-resolution cosmological zoom-in simulations from the Feedback in Realistic Environment (FIRE) project to study the galaxy mass–metallicity relations (MZR) from z=0–6.
Xiangcheng Ma   +9 more
semanticscholar   +1 more source

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