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相关论文: A Possible Origin of the Mass-Metallicity Relation…

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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…

星系天体物理 · 物理学 2018-06-13 J. Sanchez Almeida , C. Dalla Vecchia

We calculate the stellar mass-metallicity relation at five epochs ranging to z~2.3. We quantify evolution in the shape of the mass-metallicity relation as a function of redshift; the mass-metallicity relation flattens at late times. There…

宇宙学与河外天体物理 · 物理学 2015-06-15 H. Jabran Zahid , Margaret Geller , Lisa Kewley , Ho Seong Hwang , Daniel Fabricant , Michael Kurtz

We describe an equilibrium model that links the metallicity of low-redshift galaxies to stellar evolution models. It enables the testing of different stellar initial mass functions and metal yields against observed galaxy metallicities. We…

星系天体物理 · 物理学 2015-06-23 Martin Harwit , Drew Brisbin

We study relations between stellar mass, star formation and gas-phase metallicity in a sample of 177,071 unique emission line galaxies from the SDSS-DR7, as well as in a sample of 43,767 star forming galaxies at z=0 from the cosmological…

宇宙学与河外天体物理 · 物理学 2015-05-28 Robert M. Yates , Guinevere Kauffmann , Qi Guo

We investigate the relationship between stellar mass, metallicity and gas content for a magnitude- and volume-limited sample of 260 nearby late-type galaxies in different environments, from isolated galaxies to Virgo cluster members. We…

宇宙学与河外天体物理 · 物理学 2015-06-05 T. M. Hughes , L. Cortese , A. Boselli , G. Gavazzi , J. I. Davies

We utilize Sloan Digital Sky Survey imaging and spectroscopy of ~53,000 star-forming galaxies at z~0.1 to study the relation between stellar mass and gas-phase metallicity. We derive gas-phase oxygen abundances and stellar masses using new…

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…

星系天体物理 · 物理学 2018-09-12 J. Chisholm , C. Tremonti , C. Leitherer

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…

The existence of a mass-metallicity (MZ) relation in star forming galaxies at all redshift has been recently established. We aim at studying some possible physical mechanisms contributing to the MZ relation by adopting analytical solutions…

宇宙学与河外天体物理 · 物理学 2013-03-13 E. Spitoni , F. Calura , F. Matteucci , S. Recchi

The widely known relation between stellar mass and gas metallicity (mass-metallicity relation, MZR) in galaxies is often ascribed to the higher capability of more massive systems to retain metals against the action of galactic outflows. In…

星系天体物理 · 物理学 2023-03-29 William M. Baker , Roberto Maiolino

We present a newly observed relation between galaxy mass and radial metallicity gradients of early-type galaxies. Our sample of 51 early-type galaxies encompasses a comprehensive mass range from dwarf to brightest cluster galaxies. The…

星系天体物理 · 物理学 2009-11-13 Max Spolaor , Robert N. Proctor , Duncan A. Forbes , Warrick J. Couch

Metallicity appears to be one the most important tool to study formation and evolution of galaxies. Recently, we have shown that metallicity of local galaxies is tightly related not only to stellar mass, but also to star formation rate…

宇宙学与河外天体物理 · 物理学 2010-11-02 F. Mannucci , G. Cresci

Stellar metallicity encodes the integrated effects of gas inflow, star formation, and feedback-driven outflow, yet its connection to galaxy structure remains poorly understood. Using SDSS-IV MaNGA, we present the direct observational…

星系天体物理 · 物理学 2025-10-06 Kai Wang

During the last three decades, many papers have reported the existence of a luminosity-metallicity or mass-metallicity (M-Z) relation for all kinds of galaxies: The more massive galaxies are also the ones with more metal-rich interstellar…

宇宙学与河外天体物理 · 物理学 2019-08-15 N. Vale Asari , G. Stasinska , R. Cid Fernandes , J. M. Gomes , M. Schlickmann , A. Mateus , W. Schoenell

We investigate the mass-metallicity relations for the gaseous (MZRgas) and stellar components (MZRstar) of local star-forming galaxies based on a representative sample from SDSS DR12. The mass-weighted average stellar metallicities are…

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…

天体物理学 · 物理学 2009-11-13 Patricia B. Tissera , Maria E. De Rossi , C. Scannapieco

We develop a simple analytical model that tracks galactic metallicities governed by star formation and feedback to gain insight from the observed galaxy stellar mass-metallicity relations over a large range of stellar masses and redshifts.…

星系天体物理 · 物理学 2015-08-06 Yu Lu , Guillermo A. Blanc , Andrew Benson

We examine the scatter of the relation between stellar mass and stellar metallicity for cluster dwarf galaxies in the cosmological simulation Illustris. The mass-metallicity relation exhibits the smallest intrinsic scatter at the galaxies'…

星系天体物理 · 物理学 2018-04-17 Christoph Engler , Thorsten Lisker , Annalisa Pillepich

We use a sample of 43,690 galaxies selected from the Sloan Digital Sky Survey Data Release 4 to study the systematic effects of specific star formation rate (SSFR) and galaxy size (as measured by the half light radius, r_h) on the…

天体物理学 · 物理学 2009-11-13 Sara L. Ellison , David R. Patton , Luc Simard , Alan W. McConnachie

We study the mass-metallicity relation of galaxies in pairs and in isolation taken from the SDSS-DR4 using the stellar masses and oxygen abundances derived by Tremonti et al. (2004). Close galaxy pairs, defined by projected separation r_p <…

天体物理学 · 物理学 2009-11-13 L. Michel-Dansac , D. G. Lambas , M. S. Alonso , P. Tissera
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