Results 131 to 140 of about 195,665 (278)
A Chemical Evolution Model for the Fornax Dwarf Spheroidal Galaxy
EPJ Web of Conferences, 2016 Fornax is the brightest Milky Way (MW) dwarf spheroidal galaxy and its star formation history (SFH) has been derived from observations. We estimate the time evolution of its gas mass and net inflow and outflow rates from the SFH usinga simple star ...
Yuan Zhen, Qian Yong-Zhong, Jing Yi Peng
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Thermal and Chemical Evolution of X-Ray Clusters of Galaxies [PDF]
, 1996 Junji Fukumoto, Satoru Ikeuchi
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Thresholds on star formation and the chemical evolution of galactic discs: cosmochronology and the age of the Galaxy [PDF]
, 1996 Khalil Chamcham, M. Hendry
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On the Significance of the Thick Disks of Disk Galaxies
The Astrophysical Journal Supplement SeriesThick disks are a prevalent feature observed in numerous disk galaxies, including our own Milky Way. Their significance has been reported to vary widely, ranging from a few percent to 100% of the disk mass, depending on the galaxy and the measurement ...
Sukyoung K. Yi +10 more
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The Chemical Evolution of Galaxies
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 ...
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Chemical evolution of galaxies — challenges for stellar astronomy [PDF]
, 1997 E. M. Sadler
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The Astronomical JournalMany nucleosynthetic channels create the elements, but two-parameter models characterized by α and Fe nonetheless predict stellar abundances in the Galactic disk to accuracies of 0.02–0.05 dex for most measured elements, near the level of current ...
Emily J. Griffith +7 more
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Probing the Evolution of Early‐Type Cluster Galaxies through Chemical Enrichment [PDF]
, 2000 Ignacio Ferreras, Joseph Silk
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Near‐Infrared Spectroscopy of Two Galaxies atz = 2.3 andz = 2.9: New Probes of Chemical and Dynamical Evolution at High Redshift [PDF]
, 2000 Henry A. Kobulnicky, David C. Koo
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General constraints on the age and chemical evolution of the Galaxy
, 1986 B. S. Meyer, David N. Schramm
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