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In this work we present an analysis of the behaviour of galaxies in a four-dimensional parameter space defined by stellar mass, metallicity, star formation rate, and molecular gas mass. We analyse a combined sample of 227 galaxies, which…

Astrophysics of Galaxies · Physics 2016-10-26 M. S. Bothwell , R. Maiolino , C. Cicone , Y. Peng , J. Wagg

We investigate the evolution of galaxy gas-phase metallicity (O/H) over the range $z=0-3.3$ using samples of $\sim300$ galaxies at $z\sim2.3$ and $\sim150$ galaxies at $z\sim3.3$ from the MOSDEF survey. This analysis crucially utilizes…

We present the evolution of the mass-metallicity (MZ) relations at z=4-10 derived with 135 galaxies identified in the JWST/NIRSpec data taken from the three major public spectroscopy programs of ERO, GLASS, and CEERS. Because there are many…

Astrophysics of Galaxies · Physics 2023-05-10 Kimihiko Nakajima , Masami Ouchi , Yuki Isobe , Yuichi Harikane , Yechi Zhang , Yoshiaki Ono , Hiroya Umeda , Masamune Oguri

The evolution of the metal content of galaxies and its relations to other global properties [such as total stellar mass (M*), circular velocity, star formation rate (SFR), halo mass, etc.] provides important constraints on models of galaxy…

Astrophysics of Galaxies · Physics 2015-07-15 Maria E. De Rossi , Tom Theuns , Andreea S. Font , Ian G. McCarthy

We use a sample of 87 rest-frame UV-selected star-forming galaxies with mean spectroscopic redshift z=2.26 to study the correlation between metallicity and stellar mass at high redshift. Using stellar masses determined from SED fitting to…

Observations show that galaxies follow a mass-metallicity relation over a wide range of masses. One currently favoured explanation is that less massive galaxies are less able to retain the gas and stellar ejecta and thus may lose the…

Astrophysics · Physics 2008-11-26 J. Koeppen , C. Weidner , P. Kroupa

We study the metallicity properties of galaxies in the zCOSMOS sample between 0.2<z<0.8. At z<0.46, where Ha and [NII] are detected, we find the same dependence of metallicity on stellar mass and Star Formation Rate (SFR), the Fundamental…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Giovanni Cresci , Filippo Mannucci , Veronica Sommariva , Roberto Maiolino , Alessandro Marconi , Marcella Brusa

We explore the evolution of the Stellar Mass-Star Formation Rate-Metallicity Relation using a set of 256 COSMOS and GOODS galaxies in the redshift range 1.90 < z < 2.35. We present the galaxies' rest-frame optical emission-line fluxes…

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

We obtained Subaru FMOS observations of Halpha emitting galaxies selected from the HiZELS narrow-band survey, to investigate the relationship between stellar mass, metallicity and star-formation rate at z = 0.84 - 1.47, for comparison with…

Cosmology and Nongalactic Astrophysics · Physics 2013-09-27 John P. Stott , David Sobral , Richard Bower , Ian Smail , Philip N. Best , Yuichi Matsuda , Masao Hayashi , James E. Geach , Tadayuki Kodama

Using a sample of 299 Ha-selected galaxies at z~0.8, we study the relationship between galaxy stellar mass, gas-phase metallicity, and star formation rate (SFR), and compare to previous results. We use deep optical spectra obtained with the…

The gas-phase mass-metallicity relation (MZR) of galaxies shows a noticeable break in slope and increased scatter at low stellar masses, suggesting that the physical processes governing chemical enrichment differ between dwarf and high-mass…

(Abridged) We investigate the effect of metallicity calibrations, AGN classification, and aperture covering fraction on the local mass-metallicity (MZ) relation using 27,730 star-forming galaxies from the Sloan Digital Sky Survey (SDSS)…

Astrophysics · Physics 2014-11-18 Lisa J. Kewley , Sara L. Ellison

In the local universe, there is good evidence that, at a given stellar mass M, the gas-phase metallicity Z is anti-correlated with the star formation rate (SFR) of the galaxies. It has also been claimed that the resulting Z(M,SFR) relation…

Astrophysics of Galaxies · Physics 2014-08-26 C. Maier , S. J. Lilly , B. Ziegler , T. Contini , E. Perez Montero , Y. Peng , I. Balestra

We investigate the star formation rate (SFR) dependence on the stellar mass and gas-phase metallicity relation at z=2 with MOSFIRE/Keck as part of the ZFIRE survey. We have identified 117 galaxies (1.98 < z < 2.56), with…

We use \sim 2000 galaxies belonging to different environments to show how the fractions of different galaxy morphological types vary with global environment and as function of galaxy stellar mass at low redshift. Considering mass limited…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Rosa Calvi , Bianca M. Poggianti , Giovanni Fasano , Benedetta Vulcani

We present a comprehensive observational study of the gas phase metallicity of star-forming galaxies from z ~ 0 -> 3. We combine our new sample of gravitationally lensed galaxies with existing lensed and non-lensed samples to conduct a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 T. -T. Yuan , L. J. Kewley , J. Richard

Aims: Interacting galaxies show a metallicity dilution compared to isolated galaxies of similar masses in the mass-metallicity space at the global scale. We investigate the spatially resolved mass-metallicity relation (MZR) of galaxy pairs…

Astrophysics of Galaxies · Physics 2022-05-04 Kiyoaki Christopher Omori , Tsutomu T. Takeuchi

Exploiting the data from the GAs Stripping Phenomena in galaxies with MUSE (GASP) survey, we study the gas-phase metallicity scaling relations of a sample of 29 cluster galaxies undergoing ram-pressure stripping and of a reference sample of…