Results 1 to 10 of about 41,389 (308)
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 ...
Dafydd Wyn Evans, Eloisa Poggio
exaly +12 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
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
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
THE MILKY WAY HAS NO DISTINCT THICK DISK [PDF]
The Astrophysical Journal, 2012 Different stellar sub-populations of the Milky Way's stellar disk are known to have different vertical scale heights, their thickness increasing with age. Using SEGUE spectroscopic survey data, we have recently shown that mono-abundance sub-populations, defined in the [ /Fe]-[Fe/H] space, are well described by single exponential spatial-density ...
Jo Bovy +2 more
openalex +4 more sources
Using classical Cepheids to study the far side of the Milky Way disk [PDF]
Astronomy & Astrophysics, 2020 Context. Much of what we know about the Milky Way disk is based on studies of the solar vicinity. The structure, kinematics, and chemical composition of the far side of the Galactic disk, beyond the bulge, are still to be revealed. Aims.
J. H. Minniti +11 more
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PHYSICAL PROPERTIES OF MOLECULAR CLOUDS FOR THE ENTIRE MILKY WAY DISK [PDF]
, 2016 This study presents a catalog of 8107 molecular clouds that covers the entire Galactic plane and includes 98% of the 12CO emission observed within . The catalog was produced using a hierarchical cluster identification method applied to the result of a ...
M.-A. Miville-Deschênes +2 more
openalex +3 more sources
Riding the kinematic waves in the Milky Way disk with Gaia [PDF]
Astronomy & Astrophysics, 2018 Context. Gaia DR2 has delivered full-sky six-dimensional measurements for millions of stars, and the quest to understand the dynamics of our Galaxy has entered a new phase. Aims.
P. Ramos, T. Antoja, F. Figueras
semanticscholar +4 more sources