Results 51 to 60 of about 699,213 (384)

Galaxy metallicity scaling relations in the EAGLE simulations [PDF]

open access: yes, 2017
We quantify the correlations between gas-phase and stellar metallicities and global properties of galaxies, such as stellar mass, halo mass, age and gas fraction, in the Evolution and Assembly of GaLaxies and their Environments suite of cosmological ...
M. Rossi   +4 more
semanticscholar   +1 more source

The cosmic evolution of dust-corrected metallicity in the neutral gas [PDF]

open access: yes, 2017
Interpreting abundances of Damped Ly-$\alpha$ Absorbers (DLAs) from absorption-line spectroscopy has typically been a challenge because of the presence of dust.
A. D. Cia   +3 more
semanticscholar   +1 more source

Bimodal Infrared Colors of the M87 Globular Cluster System: Peaks in the Metallicity Distribution

open access: yes, 2007
The globular cluster (GC) systems of many galaxies reveal bimodal optical color distributions. Based on stellar evolutionary models and the bimodal colors and metallicities of Galactic GCs this is thought to reflect an underlying bimodal metallicity ...
Kundu, Arunav, Zepf, Stephen E.
core   +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 Period Distribution of Hot Jupiters Is Not Dependent on Host Star Metallicity

open access: yesThe Astrophysical Journal Letters, 2023
The probability that a Sun-like star has a close-orbiting giant planet (period ≲1 yr) increases with stellar metallicity. Previous work provided evidence that the period distribution of close-orbiting giant planets is also linked to metallicity, hinting ...
Samuel W. Yee, Joshua N. Winn
doaj   +1 more source

Binary Formation in Star-Forming Clouds with Various Metallicities

open access: yes, 2008
Cloud evolution for various metallicities is investigated by three-dimensional nested grid simulations, in which the initial ratio of rotational to gravitational energy of the host cloud \beta_0 (=10^-1 - 10^-6) and cloud metallicity Z (=0 - Z_\odot) are
Bate   +24 more
core   +1 more source

Are Stars with Planets Polluted? [PDF]

open access: yes, 2001
We compare the metallicities of stars with radial velocity planets to the metallicity of a sample of field dwarfs. We confirm recent work indicating that the stars-with-planet sample as a whole is iron rich. However, the lowest mass stars tend to be iron
B. Chaboyer   +5 more
core   +3 more sources

The Mass-Metallicity Relation at z≳2 [PDF]

open access: yes, 2006
We use a sample of 87 rest-frame UV-selected star-forming galaxies with mean spectroscopic redshift ⟨z⟩ = 2.26 ± 0.17 to study the correlation between metallicity and stellar mass at high redshift.
D. Erb   +5 more
semanticscholar   +1 more source

Exploring the host environments of long-duration gamma-ray bursts

open access: yes, 2011
We have conducted the first dedicated spectroscopic survey of long-duration gamma-ray burst (LGRB) host galaxies at z < 1, and use these observations along with data from the literature to determine a wide range of ISM properties and a statistically ...
Levesque, Emily M.
core   +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

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