Bimodal Infrared Colors of the M87 Globular Cluster System: Peaks in the Metallicity Distribution
, 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]
, 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
Binary Formation in Star-Forming Clouds with Various Metallicities
, 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
F stars, metallicity, and the ages of red galaxies at z > 1 [PDF]
, 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 Mass-Metallicity Relation at z≳2 [PDF]
, 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
The Period Distribution of Hot Jupiters Is Not Dependent on Host Star Metallicity
The 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
CHEMICAL CARTOGRAPHY WITH APOGEE: METALLICITY DISTRIBUTION FUNCTIONS AND THE CHEMICAL STRUCTURE OF THE MILKY WAY DISK [PDF]
, 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
Extremely metal-poor stars in SDSS fields [PDF]
, 2011 Some insight on the first generation of stars can be obtained from the chemical composition of their direct descendants, extremely metal-poor stars (EMP), with metallicity less than or equal to 1/1000 of the solar metalllicity. Such stars are exceedingly
Adelman-McCarthy +31 more
core +6 more sources
Exploring the host environments of long-duration gamma-ray bursts
, 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
Stellar population gradients from cosmological simulations: dependence on mass and environment in local galaxies [PDF]
, 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