Search for dark matter annihilation in the Milky Way halo
Physical Review D, 2018 The Milky Way halo is the brightest source of dark matter annihilation on the sky. Indeed, the potential strength of the Galactic dark matter signal can supersede that expected from dwarf galaxies and galaxy groups even in regions away from the Inner Galaxy.
Chang, Laura J. +2 more
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Is the dark matter halo of the Milky Way flattened? [PDF]
Astronomy & Astrophysics, 2006 We performed an extended analysis of the parameter space for the interaction of the Magellanic System with the Milky Way (MW). The varied parameters cover the phase space parameters, the masses, the structure, and the orientation of both Magellanic Clouds, as well as the flattening of the dark matter halo of the MW. The analysis was done by a specially
Ruzicka, Adam +2 more
openaire +2 more sources
Signatures of Velocity-dependent Dark Matter Self-interactions in Milky Way-mass Halos [PDF]
The Astrophysical Journal, 2020 Abstract We explore the impact of elastic, anisotropic, velocity-dependent dark matter (DM) self-interactions on the host halo and subhalos of Milky Way (MW)-mass systems. We consider a generic self-interacting dark matter (SIDM) model parameterized by the masses of a light mediator and the DM particle. The ratio of these masses, w, sets
Ethan O. Nadler +4 more
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A low pre-infall mass for the Carina dwarf galaxy from disequilibrium modelling [PDF]
, 2015 Dark matter only simulations of galaxy formation predict many more subhalos around a Milky Way like galaxy than the number of observed satellites. Proposed solutions require the satellites to inhabit dark matter halos with masses between one to ten ...
Read, Justin I. +3 more
core +2 more sources
Stream Fanning and Bifurcations: Observable Signatures of Resonances in Stellar Stream Morphology
The Astrophysical Journal, 2023 Recent observations have revealed a trove of unexpected morphological features in many of the Milky Way’s stellar streams. Explanations for such features include time-dependent deformations of the Galactic gravitational potential, local disruptions ...
Tomer D. Yavetz +4 more
doaj +1 more source
Modelling the Milky Way through adiabatic compression of cold dark matter haloes [PDF]
Astronomy & Astrophysics, 2005 13 pages, 10 figures, accepted for publication on Astronomy & ...
Cardone, V. F., Sereno, M.
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Neutrino Constraints on the Dark Matter Total Annihilation Cross Section [PDF]
, 2007 In the indirect detection of dark matter through its annihilation products, the signals depend on the square of the dark matter density, making precise knowledge of the distribution of dark matter in the Universe critical for robust predictions.
A. Klypin +5 more
core +2 more sources
The stability of stellar discs in Milky Way-sized dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 22 pages, 23 figures, 1 tables. Accepted for publication in MNRAS.
Denis Yurin, Volker Springel
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Empirical Determination of Dark Matter Velocities using Metal-Poor Stars [PDF]
, 2017 The Milky Way dark matter halo is formed from the accretion of smaller subhalos. These sub-units also harbor stars---typically old and metal-poor---that are deposited in the Galactic inner regions by disruption events.
Herzog-Arbeitman, Jonah +3 more
core +2 more sources
Constraining Sterile Neutrino Dark Matter in the Milky Way Halo with Swift-XRT
The Astrophysical Journal, 2022 Abstract We present a search for sterile neutrino dark matter decay signals in the Milky Way’s dark matter halo by considering the entirety of the Swift X-ray Telescope (Swift-XRT) data archive. After filtering the raw archive, we analyze a ∼77 Ms data set containing the full field of view, as well as a ∼41 Ms data set with point sources
Dominic Sicilian +4 more
openaire +3 more sources