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Astronomers detect dark matter halo around ancient dwarf galaxy（图）
Astronomers detect dark matter halo ancient dwarf galaxy
2021/3/5
The Milky Way is surrounded by dozens of dwarf galaxies thought to be relics of the first galaxies in the universe. Among the most primitive of these galactic fossils is Tucana II -- an ultrafaint dwa...
On the origin of cold dark matter halo density profiles
dark matter large-scale structure of the universe
2014/12/24
N-body simulations predict that cold dark matter (CDM) halo-assembly occurs in two phases: (i) a fast-accretion phase with a rapidly deepening potential well; and (ii) a slow-accretion phase character...
We consider the sensitivity of the circular-orbit adiabatic contraction approximation to the baryon condensation rate and the orbital structure of dark matter haloes in the Λ cold dark matter (ΛCDM) p...
The dynamics of satellite and dark matter halo interactions on galaxy formation and evolution
Satellite Dark matter halos. Dynamic Galaxy formation. The evolution of
2014/12/9
In my thesis, I research four consequences of satellite and dark matter halo interaction on galaxy formation. ^ First, I investigate detailed physical processes in interaction between satellites and d...
The outer haloes of the Milky Way and Andromeda galaxies contain as much important information on their assembly and formation history as the properties of the discs resident in their centres. In this...
The Origin of Dark Matter Halo Profiles
Cosmology and Extragalactic Astrophysics (astro-ph.CO) Galaxy Astrophysics (astro-ph.GA)
2010/12/29
A longstanding puzzle of fundamental importance in modern cosmology has been the origin of the nearly universal density profiles of dark matter halos found in N-body simulations -- the so-called NFW p...