Results 51 to 60 of about 166,323 (379)
The “Building Blocks” of Stellar Halos
Galaxies, 2017 The stellar halos of galaxies encode their accretion histories. In particular, the median metallicity of a halo is determined primarily by the mass of the most massive accreted object.
Kyle A. Oman +2 more
doaj +1 more source
The Evolution of the Mass-Metallicity Relation at 0.20 < z < 0.35 [PDF]
Journal of Astronomy and Space Sciences, 2013 We present a spectroscopic study of 343 blue compact galaxies (BCGs) at 0.20 < z < 0.35 from the Sloan Digital Sky Survey (SDSS) DR7 data. We derive gas phase oxygen abundance using the empirical and direct method.
Jiwon Chung +2 more
doaj +1 more source
Galaxy formation with radiative and chemical feedback [PDF]
, 2015 Here we introduce GAMESH, a novel pipeline which implements self-consistent radiative and chemical feedback in a computational model of galaxy formation. By combining the cosmological chemical-evolution model GAMETE with the radiative transfer code CRASH,
de Bennassuti, M. +5 more
core +3 more sources
Ages and metallicities of central and satellite galaxies: implications for galaxy formation and evolution [PDF]
, 2009 Using the stellar ages and metallicities of galaxies in the Sloan Digital Sky Survey (SDSS) obtained by Gallazzi et al. and the SDSS galaxy group catalogue of Yang et al., we study how the stellar ages and metallicities of central and satellite galaxies ...
A. Pasquali +6 more
semanticscholar +1 more source
Star Formation Quenching in Quasar Host Galaxies
Frontiers in Astronomy and Space Sciences, 2017 Galaxy evolution is likely to be shaped by negative feedback from active galactic nuclei (AGN). In the whole range of redshifts and luminosities studied so far, galaxies hosting an AGN frequently show fast and extended outflows consisting in both ionized
Stefano Carniani, Stefano Carniani
doaj +1 more source
Stellar populations in gas-rich galaxy mergers I. Dependence on star formation history
, 1998 We investigate the nature of stellar populations of major galaxy mergers between late-type spirals considerably abundant in interstellar medium by performing numerical simulations designed to solve both the dynamical and chemical evolution in a self ...
Bekki, Kenji, Shioya, Yasuhiro
core +1 more source
The Thick Disk in the Galaxy NGC 4244 from S^4G Imaging [PDF]
, 2010 If thick disks are ubiquitous and a natural product of disk galaxy formation and/or evolution processes, all undisturbed galaxies that have evolved during a significant fraction of a Hubble time should have a thick disk. The late-type spiral galaxy NGC
Athanassoula, E. +18 more
core +5 more sources
The E-MOSAICS project: tracing galaxy formation and assembly with the age–metallicity distribution of globular clusters [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We present 25 cosmological zoom-in simulations of Milky Way-mass galaxies in the `MOdelling Star cluster population Assembly In Cosmological Simulations within EAGLE' (E-MOSAICS) project.
J. Kruijssen +3 more
semanticscholar +1 more source
Dynamics of the response of dark matter halo to galaxy evolution in IllustrisTNG [PDF]
Journal of Cosmology and Astroparticle PhysicsWe present the dynamical evolution of the dark matter's relaxation response to galaxies and their connection to the astrophysical properties as simulated in the IllustrisTNG suite of cosmological hydrodynamical simulations.
Premvijay Velmani, A. Paranjape
semanticscholar +1 more source
The Formation and Evolution of Field Massive Galaxies [PDF]
Astrophysics and Space Science, 2003 The problem of the formation and evolution of field massive galaxies is briefly reviewed from an observational perspective. The motivations and the characteristics of the K20 survey are outlined. The redshift distribution of Ks<20 galaxies, the evolution of the rest-frame Ks-band luminosity function and luminosity density to z=1.5, the nature and ...
openaire +4 more sources