Results 1 to 10 of about 77,216 (325)
On the chemical evolution of the Milky Way [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractI discuss three different topics concerning the chemical evolution of the Milky Way (MW). 1) The metallicity distribution of the MW halo; it is shown that this distribution can be analytically derived in the framework of the hierarchical merging scenario for galaxy formation, assuming that the component sub-haloes had chemical properties ...
Nikos Prantzos
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Chemical Evolution of Fluorine in the Milky Way [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT Fluorine has many different potential sites and channels of production, making narrowing down a dominant site of fluorine production particularly challenging. In this work, we investigate which sources are the dominant contributors to the galactic fluorine by comparing chemical evolution models to observations of fluorine ...
Kate A. Womack +7 more
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Chemodynamical evolution of the Milky Way disk [PDF]
Astronomy & Astrophysics, 2013 In the first paper of this series, we present a new approach for studying the chemo-dynamical evolution in disk galaxies, which consists of fusing disk chemical evolution models with compatible numerical simulations of galactic disks. This method avoids known star formation and chemical enrichment problems encountered in simulations.
Ivan Minchev, C. Chiappini, Marie Martig
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EVOLUTION OF LITHIUM IN THE MILKY WAY [PDF]
, 2001 2 pages, latex, 1 figure.
D. Romano +3 more
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The Three-phase Evolution of the Milky Way
The Astrophysical JournalWe illustrate the formation and evolution of the Milky Way over cosmic time, utilizing a sample of 10 million red giant stars with full chemodynamical information, including metallicities and α -abundances from low-resolution Gaia XP spectra.
Vedant Chandra +8 more
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Structure and evolution of the inner Milky Way galaxy [PDF]
Astrophysics and Space Science, 2001 The DENIS/ISOGAL near/mid-IR survey of the Milky Way for the first time probes stellar populations in the innermost obscured regions of our galaxy. Ages, metallicities and extinction-corrected luminosities are derived for these stars individually. An old metal-rich population dominates in the inner galactic Bulge, but there are also indications for the
Jacco van Loon
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Formation and Evolution of the Milky Way [PDF]
Symposium - International Astronomical Union, 1998 To paint with broad brush strokes, the spectrum of Galactic formation models has as extrema what may be termed the “fast and smooth” and the “slow and lumpy” scenarios. Appropriate or not, to ascribe as champions of these views the works of, respectively, Eggen et al.
Steven R. Majewski
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The Astrophysical JournalMilky Way analogs (MWAs) have long been studied by astronomers to place our Galaxy within an extragalactic context. With the power of cosmological simulations, we are now able to not only characterize MWAs today, but also watch as they evolve through ...
Alicia M. Savelli +4 more
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The Formalism of Milky-Way Antimatter-Domains Evolution
Galaxies, 2023 If baryosynthesis is strongly nonhomogeneous, macroscopic regions with antibaryon excess can be created in the same process from which the baryonic matter is originated. This exotic possibility can become real, if the hints to the existence of antihelium
Maxim Yu. Khlopov, Orchidea Maria Lecian
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The Astrophysical Journal, 2023 We have for the first time identified the early stellar disk in the Milky Way by using a combination of elemental abundances and kinematics. Using data from APOGEE DR17 and Gaia we select stars in the Mg–Mn–Al–Fe plane with elemental abundances ...
Sofia Feltzing, Diane Feuillet
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