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Related papers: Metal Production in Galaxy Clusters: The Non-Galac…

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We present the time evolution of the stellar metallicity for SDSS galaxies, a sample that spans five orders of magnitude in stellar mass (10^7 - 10^{12} Msun). Assuming the BC03 stellar population models, we find that more massive galaxies…

Astrophysics · Physics 2009-11-13 Benjamin Panter , Raul Jimenez , Alan F. Heavens , Stephane Charlot

For the same stellar mass, physically smaller star-forming galaxies are also metal richer (Ellison et al. 2008). What causes the relation remains unclear. The central star-forming galaxies in the EAGLE cosmological numerical simulation…

Astrophysics of Galaxies · Physics 2018-06-13 J. Sanchez Almeida , C. Dalla Vecchia

The stellar metallicity is a direct measure of the amount of metals present in a galaxy, as a large part of the metals lie in its stars. In this paper we investigate new stellar metallicity indicators suitable for high-z galaxies studying…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Veronica Sommariva , Filippo Mannucci , Giovanni Cresci , Roberto Maiolino , Alessandro Marconi , Tohru Nagao , Andrea Baroni , Andrea Grazian

Interpreting the scaling relations followed by galaxies is a fundamental tool for assessing how well we understand galaxy formation and evolution. Several scaling relations involving the galaxy metallicity have been discovered through the…

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…

Astrophysics of Galaxies · Physics 2018-09-12 J. Chisholm , C. Tremonti , C. Leitherer

The chemical composition of high-redshift galaxies is an important property that gives clues to their past history and future evolution. Measuring abundances in distant galaxies with current techniques is often a challenge, and the…

Astrophysics · Physics 2009-11-11 Claus Leitherer

We present an analysis of the chemical abundance properties of $\approx$650 star-forming galaxies at $z \approx0.6-1.8$. Using integral-field observations from the $K$-band Multi-Object Spectrograph (KMOS), we quantify the [NII]/H$\alpha$…

The metal content of planet hosting stars is an important ingredient which may affect the formation and evolution of planetary systems. Accurate stellar abundances require the determinations of reliable physical parameters, namely the…

Solar and Stellar Astrophysics · Physics 2010-08-23 L. Ghezzi , K. Cunha , V. V. Smith , F. X. de Araújo , S. C. Schuler , R. de la Reza

Using a sample of 57,377 star-forming galaxies drawn from the Sloan Digital Sky Survey, we study the relationship between gas-phase oxygen abundance and environment in the local Universe. We find that there is a strong relationship between…

Astrophysics · Physics 2009-11-13 Michael C. Cooper , Christy A. Tremonti , Jeffrey A. Newman , Ann I. Zabludoff

Observed metallicities of globular clusters reflect physical conditions in the interstellar medium of their high-redshift host galaxies. Globular cluster systems in most large galaxies display bimodal color and metallicity distributions,…

Astrophysics of Galaxies · Physics 2015-05-18 Alexander L. Muratov , Oleg Y. Gnedin

We present a simple toy model to understand what sets the scatter in star formation and metallicity of galaxies at fixed mass. The scatter ultimately arises from the intrinsic scatter in the accretion rate, but may be substantially reduced…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 John C. Forbes , Mark R. Krumholz , Andreas Burkert , Avishai Dekel

We study the mass-metallicity relation of galactic systems with stellar masses larger than 10^9 Mo in Lambda-CDM scenarios by using chemical hydrodynamical simulations. We find that this relation arises naturally as a consequence of the…

Astrophysics · Physics 2009-11-13 Patricia B. Tissera , Maria E. De Rossi , C. Scannapieco

We investigate the mass-metallicity relationship of star forming galaxies by analysing the absorption line spectra of $\sim$200,000 galaxies in the Sloan Digital Sky Survey. The galaxy spectra are stacked in bins of stellar mass and a…

Astrophysics of Galaxies · Physics 2023-06-07 Eva Sextl , Rolf-Peter Kudritzki , H. Jabran Zahid , I-Ting Ho

This review recaps significant results as they apply to non-dwarf galaxies, including the Milky Way, spiral disks and bulges, and elliptical and lenticular galaxies. Conclusions that span the galaxy types treated here are as follows. All…

Astrophysics · Physics 2008-11-26 R. B. C. Henry , Guy Worthey

We present a metallicity analysis of 83 late-type giants within the central 1 pc of the Milky Way. K-band spectroscopy of these stars were obtained with the medium-spectral resolution integral-field spectrograph NIFS on Gemini North using…

Astrophysics of Galaxies · Physics 2017-11-20 Tuan Do , Wolfgang Kerzendorf , Nathan Winsor , Morten Støstad , Mark R. Morris , Jessica R. Lu , Andrea M. Ghez

The combination of gas-phase oxygen abundances and stellar metallicities can provide us with unique insights into the metal enrichment histories of galaxies. In this work, we compare the stellar and gas-phase metallicities measured within a…

We review the possibility that metallicity could provide a diagnostic for the age of a galaxy, hence that the most metal-poor star forming galaxies in the local universe may be genuinely young. Indeed, observational evidence for downsizing…

Astrophysics · Physics 2015-05-13 Daniel Kunth , Goran Ostlin

A number of previous studies have searched for a correlation between radial metallicity gradients and early-type galaxy mass -- no convincing trends have been found. Here we re-examine this issue with several key enhancements: using total…

Astrophysics · Physics 2009-11-11 Duncan A. Forbes , Patricia Sanchez-Blazquez , Robert Proctor

Globular cluster (GC) systems around galaxies of a vast mass range show remarkably simple scaling relations. The combined mass of all GCs is a constant fraction of the total galaxy mass and the mean metallicity and metallicity dispersion of…

Astrophysics of Galaxies · Physics 2018-08-24 Nick Choksi , Oleg Gnedin , Hui Li

The study of chemical abundances in stars with planets is an important ingredient for the models of formation and evolution of planetary systems. In order to determine accurate abundances, it is crucial to have a reliable set of atmospheric…

Solar and Stellar Astrophysics · Physics 2010-11-05 L. Ghezzi , K. Cunha , F. X. de Araújo , V. V. Smith , S. Schuler , R. de la Reza