Results 31 to 40 of about 5,633,642 (286)
DETECTING THE MILKY WAY'S DARK DISK [PDF]
The Astrophysical Journal, 2009 In the standard model of disk galaxy formation, a dark matter disk forms as massive satellites are preferentially dragged into the disk plane and dissolve. Here, we show the importance of the dark disk for direct dark matter detection. The low velocity of the dark disk with respect to the Earth enhances detection rates at low recoil energy.
Bruch, T, Read, J, Baudis, L, Lake, G
openaire +4 more sources
Forward Modelling the Secular Evolution of the Milky Way Disk [PDF]
, 2021 We know precisely the position of the Sun in our Galaxy. Yet, like for most stars, we cannot tell where it was born. Stars undergo dynamical memory loss: their orbits evolve, because the Milky Way, like many galaxies, has non-axisymmetric structures ...
Frankel, Neige
core +1 more source
The 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
SUBSTRUCTURE DEPLETION IN THE MILKY WAY HALO BY THE DISK [PDF]
The Astrophysical Journal, 2010 We employ numerical simulations and simple analytical estimates to argue that dark matter substructures orbiting in the inner regions of the Galaxy can be efficiently destroyed by disk shocking, a dynamical process known to affect globular star clusters.
D'Onghia, Elena +3 more
openaire +5 more sources
Chemodynamical Analysis of Metal-rich High-eccentricity Stars in the Milky Way's Disk
The 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
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 ...
Pillepich A. +3 more
openaire +2 more sources
Exploring the Perturbed Milky Way Disk and the Substructures of the Outer Disk [PDF]
The Astrophysical Journal, 2020 Abstract 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.
Y. Xu +9 more
openaire +2 more sources
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
Milky Way's thick and thin disk: Is there a distinct thick disk? [PDF]
Astronomische Nachrichten, 2016 AbstractThis article is based on our discussion session on Milky Way models at the 592 WE‐Heraeus Seminar, Reconstructing the Milky Way's History: Spectroscopic Surveys, Asteroseismology and Chemodynamical Models. The discussion focused on the following question: “Are there distinct thick and thin disks?”.
Kawata, D, Chiappini, C
openaire +3 more sources
HIERARCHICAL STAR FORMATION IN THE MILKY WAY DISK [PDF]
The Astrophysical Journal, 2009 26 pages, 7 figures, 1 table.
Marcos, R. de la Fuente +1 more
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