Results 1 to 10 of about 301,218 (331)
The Merging History of the Milky Way Disk [PDF]
arXiv, 2000 The stellar populations of the stellar halo and of the thick disk of the Milky Way reveal much about the merging history that our Galaxy, a typical large disk galaxy, has experienced. Our current understanding, described here, implies a rather quiet evolution for the disk, back to redshifts of order 2.
Rosemary F. Ġ. Wyse
arxiv +5 more sources
The Milky Way and the evolution of disk galaxies [PDF]
arXiv, 2002 We present a phenomenological approach to the study of disk galaxy evolution, based on i) a detailed modelling of the Milky Way (used as a prototype disk galaxy) and ii) an extension of the model to other disks through some simple scaling relations, obtained in the framework of Cold Dark matter models.
Nikos Prantzos
arxiv +5 more sources
Mapping the Milky Way Disk with Gaia DR3: 3D Extended Kinematic Maps and Rotation Curve to ≈30 kpc [PDF]
The Astrophysical Journal, 2022 We apply a statistical deconvolution of the parallax errors based on Lucy’s inversion method (LIM) to the Gaia DR3 sources to measure their 3D velocity components in the range of Galactocentric distances R between 8 and 30 kpc with their corresponding ...
Hai-Feng Wang +3 more
doaj +2 more sources
Disk Assembly of the Milky Way Suggested from the Time-resolved Chemical Abundance [PDF]
The Astrophysical JournalBoth simulations and observations suggest that the disk assembly of galaxies is governed by the interplay between coplanar gas inflow, ex-planar gas outflow, and in situ star formation on the disk, known as the leaky accretion disk.
Enci Wang +3 more
doaj +3 more sources
A dynamically young and perturbed Milky Way disk [PDF]
Nature, 2018 The evolution of the Milky Way disk, which contains most of the stars in the Galaxy, is affected by several phenomena. For example, the bar and the spiral arms of the Milky Way induce radial migration of stars1 and can trap or scatter stars close to ...
T. Antoja +14 more
semanticscholar +13 more sources
THE DARK DISK OF THE MILKY WAY [PDF]
The Astrophysical Journal, 2009 11 pages, 6 figures, 1 table; submitted to ...
James S. Bullock +2 more
openaire +4 more sources
Stellar Abundance Maps of the Milky Way Disk [PDF]
The Astrophysical Journal, 2021 To understand the formation of the Milky Way’s prominent bar it is important to know whether stars in the bar differ in the chemical element composition of their birth material as compared to disk stars.
A. Eilers +6 more
semanticscholar +5 more sources
Vertical Structure of the Milky Way Disk with Gaia DR3
Galaxies, 2023 Using a complete sample of about 330,000 dwarf stars, well measured by Gaia DR3, limited to the galactic north and south solid angles |b|700 pc and points to the presence of more stars beyond the thin disk that cannot be accounted for by the two-disk ...
Katherine Vieira +3 more
doaj +2 more sources
Does the Milky Way Have a Maximal Disk? [PDF]
The Astrophysical Journal, 1997 Accepted for publication in The Astrophysical Journal. 23 Latex-generated pages, one (new) table, three figures (two new). A few additions to the bibliography, an expanded discussion, and slight quantitative changes, none of which affect the ...
Beaulieu J.-P. +18 more
core +13 more sources
The Vertical Displacement of the Milky Way Disk [PDF]
Formation and Evolution of Galaxy Outskirts, Proceedings of the
International Astronomical Union, IAU Symposium, Volume 321, pp. 13-15, 2017, 2017 An oscillating vertical displacement of the Milky Way, with a wavelength of about 8 kpc and and amplitude of about 100 pc (increasing with distance from the Galactic center) is observed towards the Galactic anticenter. These oscillations are thought to be the result of disk perturbations from dwarf satellites of the Milky Way.
Heidi Jo Newberg, Yan Xu
arxiv +6 more sources