Nuclear star clusters
We review the current knowledge about nuclear star clusters (NSCs), the spectacularly
dense and massive assemblies of stars found at the centers of most galaxies. Recent …
dense and massive assemblies of stars found at the centers of most galaxies. Recent …
Elves II: globular clusters and nuclear star clusters of dwarf galaxies: the importance of environment
We present the properties of the globular clusters (GCs) and nuclear star clusters (NSCs) of
low-mass (10 5.5< M⋆< 10 8.5 M⊙) early-type satellites of Milky Way–like and small group …
low-mass (10 5.5< M⋆< 10 8.5 M⊙) early-type satellites of Milky Way–like and small group …
Dynamical friction in fuzzy dark matter: Circular orbits
R Buehler, V Desjacques - Physical Review D, 2023 - APS
Dynamical friction (DF) is the gravitational force experienced by a body moving in a medium
as a result of its density wake. In this work, we investigate the DF acting on circularly moving …
as a result of its density wake. In this work, we investigate the DF acting on circularly moving …
Eridanus II: A fossil from reionization with an off-center star cluster
JD Simon, TM Brown, A Drlica-Wagner… - The Astrophysical …, 2021 - iopscience.iop.org
Abstract We present deep Hubble Space Telescope (HST) photometry of the ultra-faint dwarf
galaxy Eridanus II (Eri II). Eri II, which has an absolute magnitude of MV=− 7.1, is located at a …
galaxy Eridanus II (Eri II). Eri II, which has an absolute magnitude of MV=− 7.1, is located at a …
Dark matter halo cores and the tidal survival of Milky Way satellites
R Errani, JF Navarro, J Peñarrubia… - Monthly Notices of …, 2023 - academic.oup.com
The cuspy central density profiles of cold dark matter (CDM) haloes make them highly
resilient to disruption by tides. Self-interactions between dark matter particles, or the cycling …
resilient to disruption by tides. Self-interactions between dark matter particles, or the cycling …
Assessing the Fornax globular cluster timing problem in different models of dark matter
We investigate what the orbits of globular clusters (GCs) in the Fornax dwarf spheroidal
(dSph) galaxy can teach us about dark matter (DM). This problem was recently studied for …
(dSph) galaxy can teach us about dark matter (DM). This problem was recently studied for …
Can tides explain the low dark matter density in Fornax?
The low dark matter density in the Fornax dwarf galaxy is often interpreted as being due to
the presence of a constant density 'core', but it could also be explained by the effects of …
the presence of a constant density 'core', but it could also be explained by the effects of …
[PDF][PDF] Offset of M54 from the Sagittarius dwarf spheroidal galaxy
Z An, MG Walker, AB Pace - Monthly Notices of the Royal …, 2024 - academic.oup.com
We present results from simultaneous modelling of 2D (projected along the line of sight)
position, proper motion, and line-of-sight velocity for Gaia-and Apache Point Observatory …
position, proper motion, and line-of-sight velocity for Gaia-and Apache Point Observatory …
Density wakes driving dynamical friction in cored potentials
Dynamical friction is often modelled with reasonable accuracy by the widely used
Chandrasekhar formula. However, in some circumstances, Chandrasekhar's local and …
Chandrasekhar formula. However, in some circumstances, Chandrasekhar's local and …
Distinguishing Dark Matter Cusps from Cores Using Globular Clusters
Globular clusters (GCs) provide valuable insight into the properties of their host galaxies'
dark matter halos. Using N-body simulations incorporating semianalytic dynamical friction …
dark matter halos. Using N-body simulations incorporating semianalytic dynamical friction …