The MOSDEF Survey: A Stellar Mass–SFR–Metallicity Relation Exists at z ∼ 2.3 [PDF]
, 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
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
Galaxy metallicity scaling relations in the EAGLE simulations [PDF]
, 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
Similar star formation rate and metallicity variability time-scales drive the fundamental metallicity relation [PDF]
, 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
X-ray measured metallicities of the intra-cluster medium: a good measure for the metal mass? [PDF]
, 2007 Aims. We investigate whether X-ray observations map heavy elements in the Intra-Cluster Medium (ICM) well and whether the X-ray observations yield good estimates for the metal mass, with respect to predictions on transport mech- anisms of heavy elements from galaxies into the ICM. We further test the accuracy of simulated metallicity maps. Methods.
arxiv +1 more source
The Star Formation History of the Milky Way’s Nuclear Star Cluster
The Astrophysical Journal, 2023 We report the first star formation history study of the Milky Ways nuclear star cluster (NSC), which includes observational constraints from a large sample of stellar metallicity measurements.
Zhuo Chen +8 more
doaj +1 more source
Metal-enriched galactic outflows shape the mass-metallicity relationship [PDF]
, 2018 The gas-phase metallicity of low-mass galaxies increases with increasing stellar mass ($M_\ast$) and is nearly constant for high-mass galaxies. Theory suggests that this tight mass-metallicity relationship is shaped by galactic outflows removing metal-enriched gas from galaxies.
arxiv +1 more source
A SUPER-SOLAR METALLICITY FOR STARS WITH HOT ROCKY EXOPLANETS [PDF]
, 2016 Host star metallicity provides a measure of the conditions in protoplanetary disks at the time of planet formation. Using a sample of over 20,000 Kepler stars with spectroscopic metallicities from the LAMOST survey, we explore how the exoplanet ...
G. Mulders +4 more
semanticscholar +1 more source
CRITICAL METALLICITY FOR POPULATION II STARS
Odessa Astronomical Publications, 2008 We present simple arguments about metallicity of transition from first stellar generation (population III) to the second one. We consider the efficiency of fragmentation in gas induced by thermal instability in cold gas layers and filaments (T < 104 K ...
E. O. Vasiliev, Yu. A. Shchekinov
doaj +1 more source
Understanding inverse metallicity gradients in galactic discs as a consequence of inside-out formation [PDF]
, 2016 The early stages of a galaxy's evolution leave an imprint on its metallicity distribution. We discuss the origins and evolution of radial metallicity gradients in discs of spiral galaxies using an analytical chemical evolution model.
Ralph Schonrich, P. McMillan
semanticscholar +1 more source