Results 1 to 10 of about 81,755 (239)
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
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 +11 more sources
The Dark Disk of the Milky Way [PDF]
The Astrophysical Journal, 2009 Massive satellite accretions onto early galactic disks can lead to the deposition of dark matter in disk-like configurations that co-rotate with the galaxy. This phenomenon has potentially dramatic consequences for dark matter detection experiments.
Bruch +15 more
core +3 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, 1996 The Milky Way is often considered to be the best example of a spiral for which the dark matter not only dominates the outer kinematics, but also plays a major dynamical role in the inner galaxy: the Galactic disk is therefore said to be ``sub-maximal ...
Beaulieu J.-P. +18 more
core +13 more sources
The Milky Way's Stellar Disk [PDF]
The Astronomy and Astrophysics Review, 2013 A suite of vast stellar surveys mapping the Milky Way, culminating in the Gaia mission, is revolutionizing the empirical information about the distribution and properties of stars in the Galactic stellar disk.
Bovy, Jo, Rix, Hans-Walter
core +5 more sources
Diffuse Ionized Gas in the Milky Way Disk [PDF]
The Astrophysical Journal, 2017 We analyze the diffuse ionized gas (DIG) in the first Galactic quadrant from l=18deg to 40deg using radio recombination line (RRL) data from the Green Bank Telescope. These data allow us to distinguish DIG emission from HII region emission and thus study
Anderson, L. D. +4 more
core +9 more sources
The Homogeneity of the Star-forming Environment of the Milky Way Disk over Time [PDF]
Astrophysical Journal, 2022 Stellar abundances and ages afford the means to link chemical enrichment to galactic formation. In the Milky Way, individual element abundances show tight correlations with age, which vary in slope across ([Fe/H]–[α/Fe]).
Melissa Ness +6 more
openalex +3 more sources
Exploring the Perturbed Milky Way Disk and the Substructures of the Outer Disk [PDF]
The Astrophysical Journal, 2020 The recent discovery of a spiral feature in the Z − V Z phase plane in the solar neighborhood implies that the galactic disk has been remarkably affected by a dwarf galaxy passing through it some hundreds of millions of years ago. Using 429,500 Large Sky
Y. Xu +9 more
semanticscholar +5 more sources