Results 1 to 10 of about 2,679,859 (247)

EVOLUTION OF THE STARS AND GAS IN GALAXIES. [PDF]

open access: yes, 2022
Essentially everything of astronomical interest is either part of a galaxy, or from a galaxy, or otherwise relevant to the origin or evolution of galaxies. Diverse examples are that the isotropic composition of meteorites provides clues to the history of
B. Tinsley
semanticscholar   +1 more source

De re metallica: the cosmic chemical evolution of galaxies [PDF]

open access: yesThe Astronomy and Astrophysics Review, 2018
The evolution of the content of heavy elements in galaxies, the relative chemical abundances, their spatial distribution, and how these scale with various galactic properties, provide unique information on the galactic evolutionary processes across the ...
R. Maiolino, F. Mannucci
semanticscholar   +1 more source

A systematic metallicity study of DustPedia galaxies reveals evolution in the dust-to-metal ratios [PDF]

open access: yesAstronomy & Astrophysics, 2019
Observations of evolution in the dust-to-metal ratio allow us to constrain the dominant dust processing mechanisms. In this work, we present a study of the dust-to-metal and dust-to-gas ratios in a sub-sample of ~500 DustPedia galaxies.
P. D. Vis   +19 more
semanticscholar   +1 more source

Ionization state of inter-stellar medium in galaxies: evolution, SFR-M * -Z dependence, and ionizing photon escape [PDF]

open access: yes, 2013
We present a systematic study for ionization state of inter-stellar medium in galaxies at z=0-3 with ~140,000 SDSS galaxies and 108 intermediate to high redshift galaxies from the literature, using an ionization-parameter sensitive line ratio of [OIII ...
K. Nakajima, M. Ouchi
semanticscholar   +1 more source

The EAGLE project: Simulating the evolution and assembly of galaxies and their environments [PDF]

open access: yes, 2014
We introduce the Virgo Consortium's EAGLE project, a suite of hydrodynamical simulations that follow the formation of galaxies and black holes in representative volumes.
J. Schaye   +24 more
semanticscholar   +1 more source

Multiscale magnetic fields in spiral galaxies: evolution and reversals [PDF]

open access: yes, 2011
Context. Magnetic fields in nearby, star-forming galaxies reveal large-scale patterns, as predicted by dynamo models, but also a variety of small-scale structures.
D. Moss   +5 more
semanticscholar   +1 more source

The orbital velocity anisotropy of cluster galaxies: evolution [PDF]

open access: yes, 2009
Context. In nearby clusters early-type galaxies follow isotropic orbits. The orbits of late-type galaxies are instead characterized by slightly radial anisotropy.
A. Biviano   +2 more
semanticscholar   +1 more source

The E-MOSAICS project: simulating the formation and co-evolution of galaxies and their star cluster populations [PDF]

open access: yes, 2017
We introduce the MOdelling Star cluster population Assembly In Cosmological Simulations within EAGLE (E-MOSAICS) project. E-MOSAICS incorporates models describing the formation, evolution, and disruption of star clusters into the EAGLE galaxy formation ...
J. Pfeffer   +3 more
semanticscholar   +1 more source

The size evolution of star-forming and quenched galaxies in the IllustrisTNG simulation [PDF]

open access: yes, 2017
We analyze scaling relations and evolution histories of galaxy sizes in TNG100, part of the IllustrisTNG simulation suite. Observational qualitative trends of size with stellar mass, star-formation rate and redshift are reproduced, and a quantitative ...
S. Genel   +10 more
semanticscholar   +1 more source

Ultra-diffuse galaxies outside clusters: clues to their formation and evolution [PDF]

open access: yes, 2016
We identify six ultra diffuse galaxies (UDGs) outside clusters in three nearby isolated groups (z 250 kpc) of our three groups, we identify a population of potential UDG progenitors (two of them confirmed spectroscopically).
J. Rom'an, I. Trujillo
semanticscholar   +1 more source

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