Results 11 to 20 of about 11,734 (199)

On the stellar populations of massive galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2012
Abstract In this Letter, we analyse the predicted physical properties of massive galaxies, in the framework of recent semi-analytic models of galaxy formation. All models considered account for winds driven by supernova explosions and suppression of gas condensation at the centre of relatively massive haloes by active galactic nuclei ...
Stefano Borgani   +3 more
openaire   +4 more sources

Stellar populations in superclusters of galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2012
A catalogue of superclusters of galaxies is used to investigate the influence of the supercluster environment on galaxy populations, considering galaxies brighter than M ...
Florence Durret   +3 more
openaire   +5 more sources

STELLAR POPULATIONS IN BULGES OF SPIRAL GALAXIES [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2006
30 pages, 21 figures; submitted to ...
Jon A. Holtzman, Bhaskeand K. Moorthy
openaire   +5 more sources

The TYPHOON Stellar Population Synthesis Survey. I. The Young Stellar Population of the Great Barred Spiral NGC 1365

open access: yesThe Astrophysical Journal, 2023
We analyze TYPHOON long-slit-absorption line spectra of the starburst barred spiral galaxy NGC 1365 obtained with the Progressive Integral Step Method covering an area of 15 kpc ^2 .
Eva Sextl   +8 more
doaj   +1 more source

Distribution and Evolution of Metals in the Magneticum Simulations

open access: yesGalaxies, 2017
Metals are ideal tracers of the baryonic cycle within halos. Their composition is a fossil record connecting the evolution of the various stellar components of galaxies to the interaction with the environment by in- and out-flows.
Klaus Dolag   +2 more
doaj   +1 more source

Synthetic stellar populations: single stellar populations, stellar interior models and primordial protogalaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
We present a new set of stellar interior and synthesis models for predicting the integrated emission from stellar populations in star clusters and galaxies of arbitrary age and metallicity. This work differs from existing spectral synthesis codes in a number of important ways, namely (1) the incorporation of new stellar evolutionary tracks, with ...
Raul Jimenez   +4 more
openaire   +4 more sources

Investigation of the Stellar Population of Several Polar Ring Galaxies

open access: yesGalaxies, 2016
We present results of our investigation of two multi-spin galaxies which were taken from the catalog of polar ring galaxies. All of them possess nucleus-like knots.
Liliya Shalyapina   +4 more
doaj   +1 more source

Stellar Population Models [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractModelling stellar populations in galaxies is a key approach to gain knowledge on the still elusive process of galaxy formation as a function of cosmic time. In this review, after a summary of the state-of-art, I discuss three aspects of the modelling, that are particularly relevant to massive galaxies, the focus of this symposium, at low and ...
openaire   +6 more sources

Streams on FIRE: Populations of Detectable Stellar Streams in the Milky Way and FIRE

open access: yesThe Astrophysical Journal, 2023
We present the first detailed comparison of populations of dwarf galaxy stellar streams in cosmological simulations and the Milky Way. In particular, we compare streams identified around 13 Milky Way analogs in the FIRE-2 simulations to streams observed ...
Nora Shipp   +21 more
doaj   +1 more source

Multiple Populations in Star Clusters

open access: yesUniverse, 2022
We review the multiple population (MP) phenomenon of globular clusters (GCs): i.e., the evidence that GCs typically host groups of stars with different elemental abundances and/or distinct sequences in photometric diagrams.
Antonino P. Milone, Anna F. Marino
doaj   +1 more source

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