An Analytical Galactic Chemical Evolution Model with Gas Inflow and a Terminal Wind
The Astrophysical JournalWe present a new analytical galactic chemical evolution (GCE) model with gas inflow, internally caused outflow, and extra gas loss after a period of time. The latter mimics the ram pressure stripping of a dwarf satellite galaxy near the pericenter of its
Kateryna A. Kvasova, Evan N. Kirby
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Search for annihilating Dark Matter towards dwarf galaxies with the Cherenkov Telescope Array
EPJ Web of Conferences, 2017 The standard model of cosmology indicates that approximately 27% of the energy density of the Universe is in the form of dark matter. The nature of dark matter is an open question in modern physics.
Morselli Aldo, Rodríguez Gonzalo
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Relieving Tensions Related to the Dark Matter Interpretation of the Fermi-LAT Data
Galaxies, 2018 Recently, many studies indicate that the GeV gamma ray excess signal from the central Milky Way can be best explained by ∼40–50 GeV dark matter annihilating via the b b ¯ channel.
Man Ho Chan
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Maximally self-interacting dark matter: models and predictions
Journal of High Energy Physics, 2020 We study self-interacting dark matter (SIDM) scenarios, where the s-wave self-scattering cross section almost saturates the Unitarity bound. Such self-scattering cross sections are singly parameterized by the dark matter mass, and are featured by strong ...
Ayuki Kamada +2 more
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Star Formation Histories of Dwarf Spheroidal and Dwarf Elliptical Galaxies in the Local Universe [PDF]
, 2023 Mi-Ra Seo, H. B. Ann
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THE STRUCTURE AND DARK HALO CORE PROPERTIES OF DWARF SPHEROIDAL GALAXIES [PDF]
, 2015 The structure and dark matter halo core properties of dwarf spheroidal galaxies (dSphs) are investigated. A double-isothermal (DIS) model of an isothermal, non-self-gravitating stellar system embedded in an isothermal dark halo core provides an excellent
A. Burkert
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On the stellar content of the Carina dwarf spheroidal galaxy
, 2010 Accepted on PASP, 12 pages, 6 ...
Bono, Guillaume +22 more
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Impulsive Mixing of Stellar Populations in Dwarf Spheroidal Galaxies
The Astrophysical JournalWe study the response of mono-energetic stellar populations with initially isotropic kinematics to impulsive and adiabatic changes to an underlying dark matter potential.
Raphaël Errani +4 more
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Constraining the distribution of dark matter in dwarf spheroidal galaxies with stellar tidal streams [PDF]
, 2015 We use high-resolution N-body simulations to follow the formation and evolution of tidal streams associated to dwarf spheroidal galaxies (dSphs). The dSph models are embedded in dark matter (DM) haloes with either a centrally-divergent 'cusp', or an ...
R. Errani, J. Peñarrubia, G. Tormen
semanticscholar +1 more source
The Kinematics of Dwarf Spheroidal Galaxies
, 1997 I review observational data on the kinematic properties of dwarf spheroidal galaxies in the halo of the Milky Way and beyond. The present data confirm previous claims that these galaxies have unusually large central velocity dispersions. `Simple' sources of bias such as binary stars, internal atmospheric motions, measurement errors, and small sample ...
openaire +2 more sources