Icarus: A Flat and Fast Prograde Stellar Stream in the Milky Way Disk [PDF]
, 2020 We explore the local volume of the Milky Way via chemical and kinematical measurements from high-quality astrometric and spectroscopic data recently released by the Gaia, APOGEE, and GALAH programs.
P. Fiorentin +3 more
semanticscholar +1 more source
The Vertical Displacement of the Milky Way Disk [PDF]
Proceedings of the International Astronomical Union, 2016 AbstractAn 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
openaire +4 more sources
Metallicity Structure in the Milky Way Disk Revealed by Galactic H ii Regions [PDF]
Astrophysical Journal, 2019 The metallicity structure of the Milky Way disk stems from the chemodynamical evolutionary history of the Galaxy. We use the National Radio Astronomy Observatory Karl G.
T. Wenger +3 more
semanticscholar +1 more source
The Tilt of the Velocity Ellipsoid of Different Galactic Disk Populations
The Astrophysical Journal, 2023 The tilt of the velocity ellipsoid is a helpful tracer of the gravitational potential of the Milky Way. In this paper, we use nearly 140,000 red clump (RC) stars selected from LAMOST and Gaia to make a detailed analysis of the tilt of the velocity ...
Weixiang Sun, Han Shen, Xiaowei Liu
doaj +1 more source
Resonant Effects of a Bar on the Galactic Disk Kinematics Perpendicular to Its Plane
Galaxies, 2023 Detailed analysis of kinematics of the Milky Way disk in the solar neighborhood based on the GAIA DR3 catalog reveals the existence of peculiarities in the stellar velocity distribution perpendicular to the galactic plane.
Vladimir Korchagin +4 more
doaj +1 more source
Three-dimensional Structure of the Milky Way Disk: The Distribution of Stars and Dust beyond 0.35 R☉ [PDF]
, 2001 We present a three-dimensional model for the Milky Way fitted to the far-infrared (FIR) and near-infrared (NIR) data from the COBE/DIRBE instrument for Galactic latitudes |b| < 30° and to within 20° of the Galactic center.
R. Drimmel, D. Spergel
semanticscholar +1 more source
Clues to the formation of the Milky Way’s thick disk [PDF]
Astronomy & Astrophysics, 2015 7 pages, 6 figures, accepted for publication in A&A, replaced to include a correction on the color bar of figure 2 and ...
Haywood, M. +3 more
openaire +5 more sources
The Rapid Onset of Stellar Bars in the Baryon-dominated Centers of Disk Galaxies
The 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
THE DISTRIBUTION OF DARK MATTER IN THE MILKY WAY’S DISK [PDF]
The Astrophysical Journal, 2014 We present an analysis of the effects of dissipational baryonic physics on the local dark matter (DM) distribution at the location of the Sun, with an emphasis on the consequences for direct detection experiments. Our work is based on a comparative analysis of two cosmological simulations of a Milky Way halo: Eris, a full hydrodynamic simulation, and ...
Michael Kuhlen +5 more
openaire +3 more sources
Stellar kinematics from the symmetron fifth force in the Milky Way disk [PDF]
Physical Review D, 2018 It has been shown that the presence of non-minimally coupled scalar fields giving rise to a fifth force can noticeably alter dynamics on galactic scales.
C. O’Hare, C. Burrage
semanticscholar +1 more source