Results 81 to 90 of about 58,855 (236)

The chemical evolution of galaxies

open access: yes
Metals -- heavy elements synthesized during various phases of stellar evolution or during supernova explosions -- play a fundamental role in shaping galaxy evolution. In fact, their relative abundances, spatial distribution, and scaling with galactic properties reflect the constant interplay between star-formation, nucleosynthesis, and gas flows that ...
openaire   +2 more sources

The chemical evolution of elliptical galaxies

open access: yesThe Astrophysical Journal, 1980
U--R colors of elliptical and SO galaxies have been synthesized by combining the stellar populations of galactic globular clusters in accordance with a simple mass-loss chemical evolutionary model. We can account in a satisfactory way for the range, shape, and dispersion of the color-magnitude relation observed by Sandage and Visvanathan.
openaire   +2 more sources

Element abundances in stars: connection with chemical evolution of a Galaxy

open access: yesOdessa Astronomical Publications, 2017
Abundaces of 17 elements in the atmospheres of 100 stars belonging to different population of the Galaxy were determined. The comparing of the obtained results with the predictions of current chemical evolution models was made.
T. V. Mishenina
doaj   +1 more source

The evolution of the stellar populations in low surface brightness galaxies [PDF]

open access: yes, 2000
We investigate the star formation history and chemical evolution of low surface brightness (LSB) disk galaxies by modelling their observed spectro-photometric and chemical properties using a galactic chemical and photometric evolution model incorporating
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core   +3 more sources

AEOS: Star-by-star Cosmological Simulations of Early Chemical Enrichment and Galaxy Formation

open access: yesThe Astrophysical Journal
The A eos project introduces a series of high-resolution cosmological simulations that model star-by-star chemical enrichment and galaxy formation in the early Universe, achieving 1 pc resolution.
Kaley Brauer   +9 more
doaj   +1 more source

Chemical Doppelgangers in GALAH DR3: The Distinguishing Power of Neutron-capture Elements among Milky Way Disk Stars

open access: yesThe Astrophysical Journal
The observed chemical diversity of Milky Way stars places important constraints on Galactic chemical evolution and the mixing processes that operate within the interstellar medium. Recent works have found that the chemical diversity of disk stars is low.
Catherine Manea   +5 more
doaj   +1 more source

The MUSE Ultra Deep Field (MUDF). V. Characterizing the Mass–Metallicity Relation for Low-mass Galaxies at z ∼ 1–2

open access: yesThe Astrophysical Journal
Using more than 100 galaxies in the MUSE Ultra Deep Field with spectroscopy from the Hubble Space Telescope’s (HST) Wide Field Camera 3 and the Very Large Telescope’s Multi Unit Spectroscopic Explorer, we extend the gas-phase mass–metallicity relation ...
Mitchell Revalski   +15 more
doaj   +1 more source

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