Results 11 to 20 of about 5,790,906 (290)
7 pages, 9 figures. Full text in English. To be published in the 57 Bulletin of the Argentinian Association of Astronomy (BAAA 57)
CARRARO, GIOVANNI
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Is There a Disk of Satellites around the Milky Way? [PDF]
Abstract The “disk of satellites” (DoS) around the Milky Way is a highly debated topic with conflicting interpretations of observations and their theoretical models. We perform a comprehensive analysis of all of the dwarfs detected in the Milky Way and find that the DoS structure depends strongly on the plane identification method and ...
Moupiya Maji +3 more
core +8 more sources
The Vertical Displacement of the Milky Way Disk [PDF]
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.
Newberg, Heidi Jo, Xu, Yan
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Unveiling a Young Thick Disk in the Milky Way
Abstract The thickness of a galaxy’s disk provides a valuable probe of its formation and evolution history. Observations of the Milky Way and local galaxies have revealed an ubiquitous disk structure with two distinctive components: an old thick disk and a relatively young thin disk.
Jianhui Lian +7 more
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Disk Assembly of the Milky Way Suggested from the Time-resolved Chemical Abundance [PDF]
Both 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 +4 more sources
The formation and survival of the Milky Way’s oldest stellar disk
Published in Nature Astronomy on 10 October, 2024; This manuscript is the accepted ...
Maosheng Xiang +5 more
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A warped disk in our own galaxy is evident by means of HI, HII, γ-rays and dust observations, but unexistent when star distributions are considered, specially those of late type stars. This fact is in disagreement with the theories which assume a gravitational origin of warps, for instance a tidal interaction with the Magellanic Clouds.
E. Florido +3 more
openaire +1 more source
Forward Modelling the Secular Evolution of the Milky Way Disk [PDF]
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 DARK DISK OF THE MILKY WAY [PDF]
11 pages, 6 figures, 1 table; submitted to ...
Purcell, Chris W. +2 more
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DETECTING THE MILKY WAY'S DARK DISK [PDF]
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
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