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Impact of Cosmic‐Ray Physics on Dark Matter Indirect Searches
Advances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018 The quest for the elusive dark matter (DM) that permeates the Universe (and in general the search for signatures of physics beyond the Standard Model at astronomical scales) provides a unique opportunity and a tough challenge to the high energy astrophysics community.
Daniele Gaggero +2 more
wiley +1 more source
An LBT view of the Andromeda’s satellite galaxies
EPJ Web of Conferences, 2017 Results are presented on deep (V ∼ 26.5 mag) time series observations of four dwarf spheroidal galaxies (dSphs) in the Andromeda (M31) complex, namely, And XIX, And XXI, And XXV and And XXVII, that we have observed with the Large Binocular Telescope (LBT)
Cusano Felice +3 more
doaj +1 more source
Annihilating dark matter search with 12 years of Fermi LAT data in nearby galaxy clusters
SciPost Physics Proceedings, 2023 Galaxy clusters contain an abundance of dark matter making them attractive laboratories for indirect DM searches. This work details a search for signals of pair annihilation from WIMP dark matter in the GeV gamma ray regime.
Charles Thorpe-Morgan, D. Malyshev, C.-A. Stegen, Andrea Santangelo, J. Jochum
doaj +1 more source
The Chemical Signature of a Relic Star Cluster in the Sextans Dwarf Spheroidal Galaxy - Implications for Near-Field Cosmology [PDF]
, 2012 We present tentative evidence for the existence of a dissolved star cluster at [Fe/H]=-2.7 in the Sextans dwarf spheroidal galaxy. We use the technique of chemical tagging to identify stars that are highly clustered in a multi-dimensional chemical ...
Bland-Hawthorn, Joss +3 more
core +2 more sources
Kinematic subpopulations in dwarf spheroidal galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 Submitted to ...
S. Vidrih +10 more
openaire +5 more sources
The Discreet Charm of Higgsino Dark Matter: A Pocket Review
Advances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018 We give a brief review of the current constraints and prospects for detection of higgsino dark matter in low‐scale supersymmetry. In the first part we argue, after performing a survey of all potential dark matter particles in the MSSM, that the (nearly) pure higgsino is the only candidate emerging virtually unscathed from the wealth of observational ...
Kamila Kowalska +2 more
wiley +1 more source
Faint (and bright) variable stars in the satellites of the Milky Way
EPJ Web of Conferences, 2017 I describe two ongoing projects related with variable stars in the satellites of the MilkyWay. In the first project, we are searching for dwarf Cepheid stars (a.k.a δ Scuti and/or SX Phe) in some of the classical dwarf spheroidal galaxies. Our goal is to
Vivas A. Katherina
doaj +1 more source
THE HOT DARK MATTER MODEL: FURTHER INVESTIGATION
Odessa Astronomical Publications, 2020 e outer region with the dominant hot dark matter (the parabolic orbit of the test particle). It was assumed that the hot dark matter consists of hypothetical Planck neutrinos arising in the decay of the protons at the Planck scale.
D. L. Khokhlov
doaj +1 more source
Abundance ratios of red giants in low mass ultra faint dwarf spheroidal galaxies [PDF]
, 2015 Low mass dwarf spheroidal galaxies are key objects for our understanding of the chemical evolution of the pristine Universe and the Local Group of galaxies.
Bidin, C. Moni +5 more
core +3 more sources
No WIMP mini-spikes in dwarf spheroidal galaxies [PDF]
Journal of Cosmology and Astroparticle Physics, 2015 The formation of black holes inevitably affects the distribution of dark and baryonic matter in their vicinity, leading to an enhancement of the dark matter density, called spike, and if dark matter is made of WIMPs, to a strong enhancement of the dark matter annihilation rate.
Wanders, Mark +3 more
openaire +5 more sources