Results 1 to 10 of about 75,563 (322)

CHEMICAL EVOLUTION OF THE MILKY WAY [PDF]

open access: greenProceedings of the International Astronomical Union, 2001
I 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
Nikos Prantzos
core   +10 more sources

The chemodynamical evolution of the Milky Way disc – A new modeling approach [PDF]

open access: bronze, 2013
Despite the recent advancements in the field of galaxy formation and evolution, fully self-consistent simulations are still unable to make the detailed predictions necessary for the planned and ongoing large spectroscopic and photometry surveys of the ...
Ivan Minchev, C. Chiappini, Marie Martig
openalex   +3 more sources

Watching Our Galaxy Grow Up: The Mass and Color Evolution of the Milky Way [PDF]

open access: greenThe Astrophysical Journal
Using our rich observations within the Milky Way to better understand galaxy evolution requires understanding what the Milky Way looks like “as a galaxy”—that is, its “true” shape and abundance profiles (unskewed by observational biases), signatures of ...
Gail Zasowski   +2 more
doaj   +3 more sources

SF-R You Sure? The Conflicting Role of Star Formation Rates in Constraining the Evolution of Milky Way Analogs in Cosmological Simulations

open access: goldThe Astrophysical Journal
Milky 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
doaj   +2 more sources

The Metal-weak Milky Way Stellar Disk Hidden in the Gaia–Sausage–Enceladus Debris: The APOGEE DR17 View

open access: yesThe 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
doaj   +1 more source

Chemodynamical Analysis of Metal-rich High-eccentricity Stars in the Milky Way's Disk

open access: yesThe Astrophysical Journal, 2023
We present a chemodynamical analysis of 11,562 metal-rich, high-eccentricity halo-like main-sequence stars, which have been referred to as the Splash or Splashed Disk, selected from the Sloan Digital Sky Survey and Large Sky Area Multi-Object Fiber ...
Ayeon Lee   +4 more
doaj   +1 more source

A Blueprint for the Milky Way’s Stellar Populations. IV. A String of Pearls—the Galactic Starburst Sequence

open access: yesThe Astrophysical Journal, 2023
We continue our series of papers on phase-space distributions of stars in the Milky Way based on photometrically derived metallicities and Gaia astrometry, with a focus on the halo−disk interface in the local volume.
Deokkeun An   +3 more
doaj   +1 more source

Overview of the DESI Milky Way Survey

open access: yesThe Astrophysical Journal, 2023
We describe the Milky Way Survey (MWS) that will be undertaken with the Dark Energy Spectroscopic Instrument (DESI) on the Mayall 4 m telescope at the Kitt Peak National Observatory.
Andrew P. Cooper   +64 more
doaj   +1 more source

The origin of the Milky Way globular clusters [PDF]

open access: yes, 2016
We present a cosmological zoom-in simulation of a Milky Way-like galaxy used to explore the formation and evolution of star clusters. We investigate in particular the origin of the bimodality observed in the colour and metallicity of globular clusters ...
Agertz, Oscar   +2 more
core   +2 more sources

The Rapid Onset of Stellar Bars in the Baryon-dominated Centers of Disk Galaxies

open access: yesThe Astrophysical Journal, 2023
Recent observations of high-redshift galactic disks ( z ≈ 1–3) show a strong negative trend in the dark-matter (DM) fraction f _DM with increasing baryon surface density.
Joss Bland-Hawthorn   +3 more
doaj   +1 more source

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