Results 41 to 50 of about 2,793,104 (349)
The role of spin in the formation and evolution of galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 Using the SDSS spectroscopic sample, we estimate the dark matter halo spin parameter lambda for ~53,000 disk galaxies for which MOPED star formation histories are available. We investigate the relationship between spin and total stellar mass, star formation history, and environment. First, we find a clear anti-correlation between stellar mass and spin,
Zachory K. Berta +4 more
openaire +5 more sources
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
THE EVOLUTION OF STAR FORMATION HISTORIES OF QUIESCENT GALAXIES [PDF]
The Astrophysical Journal, 2016 ABSTRACT Although there has been much progress in understanding how galaxies evolve, we still do not understand how and when they stop forming stars and become quiescent. We address this by applying our galaxy spectral energy distribution models, which incorporate physically motivated star formation histories (SFHs) from cosmological ...
Mauro Giavalisco +25 more
openaire +6 more sources
UGC 7639: A Dwarf Galaxy in the Canes Venatici I Cloud
Advances in Astronomy, 2015 We want to get insight into the formation mechanism and the evolution of UGC 7639, a dwarf galaxy in the Canes Venatici I Cloud (CVnIC). We used archival multiwavelength data to constrain its global properties. Ultraviolet images show that UGC 7639 inner
L. M. Buson +3 more
doaj +1 more source
Formation and Evolution of E+A Galaxies in Dusty Starburst Galaxies [PDF]
The Astrophysical Journal, 2001 The formation and evolution of the ``E+A'' (also named ``k+a'' and ``a+k'' types by Dressler et al. 1999) galaxies found in significant numbers in the cores of intermediate redshift clusters has been extensively discussed by many authors. In this paper, we model the spectral, dynamical and morphological evolution of a prime candidate for producing this
Bekki, Kenji +2 more
openaire +4 more sources
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
Galaxy morphology in rich clusters: Implications for the formation and evolution of galaxies
, 1980 A study of the galaxy populations in 55 rich clusters is presented together with a discussion of the implications for the formation and/or evolution of different morphological types.
A. Dressler
semanticscholar +1 more source
A Study of Three Galaxy Types, Galaxy Formation, and Warm Dark Matter
International Journal of Astronomy and Astrophysics International Journal of Astronomy and Astrophysics, 2021 We try to bridge the gap between the theory of linear density-velocity-gravi-tational perturbations in the early universe, and the relaxed galaxies we observe today. We succeed quantitatively for dark matter if dark matter is warm.
B. Hoeneisen
semanticscholar +1 more source
EESSI: A cross‐platform ready‐to‐use optimised scientific software stack
Software: Practice and Experience, Volume 53, Issue 1, Page 176-210, January 2023., 2023 Abstract Getting scientific software installed correctly and ensuring it performs well has been a ubiquitous problem for several decades now, which is compounded currently by the changing landscape of computational science with the (re‐)emergence of different microprocessor families, and the expansion to additional scientific domains like artificial ...
Bob Dröge +5 more
wiley +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