Results 61 to 70 of about 195,665 (278)
The Chemical Evolution of the Galaxy: The Two-Infall Model [PDF]
, 1996 We present a new chemical evolution model for the Galaxy that assumes two main infall episodes, for the formation of the halo-thick disk and thin disk, respectively.
C. Chiappini, F. Matteucci, R. Gratton
semanticscholar +1 more source
Globular cluster formation and evolution in the context of cosmological galaxy assembly: open questions [PDF]
Proceedings of the Royal Society A, 2018 We discuss some of the key open questions regarding the formation and evolution of globular clusters (GCs) during galaxy formation and assembly within a cosmological framework.
D. Forbes +11 more
semanticscholar +1 more source
INHOMOGENEITIES OF CHEMICAL COMPOSITION AND COSMOCHRONOLOGY PROBLEMS
Odessa Astronomical Publications, 2017 The problems of determination of chemical composition of stars and connection with theory of chemical evolution of Galaxy are discussed.
V. G. Klochkova, V. E. Panchuk
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The Astrophysical Journal Supplement Series, 2023 We present the evolution of the mass–metallicity (MZ) relation at z = 4–10 derived with 135 galaxies identified in JWST/NIRSpec data taken from the three major public spectroscopy programs of ERO, GLASS, and CEERS.
Kimihiko Nakajima +7 more
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On the Chemical Evolution of Our Galaxy [PDF]
Publications of the Astronomical Society of Japan, 1996 We have investigated the chemical evolution of the solar neighborhood with a particular emphasis on the helium abundance and the current supernova (SN) rate, while taking into account the effects of the stellar mass loss on nucleosynthesis in stars. We found that the Scalo IMF can reproduce the solar-helium abundance as well as the current ratio of ...
Fumio Takahara, Kuniko Mihara
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VLT/FLAMES high-resolution chemical abundances in Sculptor: a textbook dwarf spheroidal galaxy [PDF]
Astronomy & Astrophysics, 2018 We present detailed chemical abundances for 99 red-giant branch stars in the centre of the Sculptor dwarf spheroidal galaxy, which have been obtained from high-resolution VLT/FLAMES spectroscopy.
V. Hill +14 more
semanticscholar +1 more source
The Astrophysical JournalWe present an empirical chemical evolution model that explains the distribution of metals in the interstellar medium (ISM) and the circumgalactic medium (CGM) of galaxies based on the U niverse M achine and N eutral U niverse M achine models in the ...
Moka Nishigaki +7 more
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The Astrophysical JournalGas-phase metallicity gradients are a crucial element in understanding the chemical evolution of galaxies. We use the FOGGIE simulations to study the metallicity gradients (∇ Z ) of six Milky Way–like galaxies throughout their evolution.
Ayan Acharyya +9 more
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Galaxy Formation and Chemical Evolution
International Journal of Astronomy and Astrophysics, 2014 14 pages, 5 ...
openaire +4 more sources
Revisiting the Fundamental Metallicity Relation with Observation and Simulation
The Astrophysical Journal LettersThe gas-phase metallicity of galaxies is regulated by multiple astrophysical processes, which makes it a crucial diagnostic of galaxy formation and evolution.
Chengyu Ma +9 more
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