Scaling Laws for Dark Matter Halos in Late-Type and Dwarf Spheroidal Galaxies [PDF]
, 2004 Maximum disk mass models fitted to galaxy rotation curves are used to show that dark matter (DM) halos in late-type and dwarf spheroidal (dSph) galaxies satisfy well defined scaling laws.
Freeman, K. C., Kormendy, John
core +3 more sources
Robust bounds on ALP dark matter from dwarf spheroidal galaxies in the optical MUSE-Faint survey [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 Nearby dwarf spheroidal galaxies are ideal targets in the search for indirect dark matter (DM) signals. In this work, we analyze MUSE spectroscopic observations of a sample of five galaxies, composed of both classical and ultra-faint dwarf spheroidals ...
E. Todarello +7 more
semanticscholar +1 more source
Proper Motions, Orbits, and Tidal Influences of Milky Way Dwarf Spheroidal Galaxies [PDF]
Astrophysical Journal, 2022 We combine Gaia early data release 3 astrometry with accurate photometry and utilize a probabilistic mixture model to measure the systemic proper motion of 52 dwarf spheroidal (dSph) satellite galaxies of the Milky Way (MW).
A. Pace, D. Erkal, Ting S. Li
semanticscholar +1 more source
Dependence of stellar substructures in M31 type galaxy on satellite morphology in galaxy mergers [PDF]
Serbian Astronomical Journal, 2022 Stellar streams and shells are observed in halos of spiral galaxies. In this paper, we investigated the formation of these structures due to mergers between the host spiral galaxy and its dwarf satellite galaxies.
Milošević S.
doaj +1 more source
Modified Newtonian Dynamics (MOND): Observational Phenomenology and Relativistic Extensions [PDF]
Living Reviews in Relativity, 2012 Benoit Famaey, Stacy McGaugh
exaly +2 more sources
Structure formation models weaken limits on WIMP dark matter from dwarf spheroidal galaxies [PDF]
Physical Review D, 2020 Dwarf spheroidal galaxies that form in halo substructures provide stringent constraints on dark matter annihilation. Many ultrafaint dwarfs discovered with modern surveys contribute significantly to these constraints.
S. Ando +5 more
semanticscholar +1 more source
Constraining velocity-dependent self-interacting dark matter with the Milky Way’s dwarf spheroidal galaxies [PDF]
, 2020 The observed anti-correlation between the central dark matter (DM) densities of the bright Milky Way (MW) dwarf spheroidal galaxies (dSphs) and their orbital pericenter distances poses a potential signature of self-interacting dark matter (SIDM). In this
Camila A Correa
semanticscholar +1 more source
The properties of dwarf spheroidal galaxies in the Cen A group [PDF]
Astronomy & Astrophysics, 2020 Dwarf spheroidal galaxies (dSphs) have been extensively investigated in the Local Group, but their low luminosity and surface brightness make similar work in more distant galaxy groups challenging.
O. Muller +9 more
semanticscholar +1 more source
New constraints on the mass of fermionic dark matter from dwarf spheroidal galaxies [PDF]
, 2020 Dwarf spheroidal galaxies are excellent systems to probe the nature of fermionic dark matter due to their high observed dark matter phase-space density. In this work, we review, revise and improve upon previous phase-space considerations to obtain lower ...
J.B.G. Alvey +9 more
semanticscholar +1 more source
Laboratory exploration of mineral precipitates from Europa's subsurface ocean
Journal of Applied Crystallography, Volume 54, Issue 5, Page 1455-1479, October 2021., 2021 Precipitation experiments from a model Europan ocean solution subjected to fast and slow freezing suggest that the highly hydrated Na–Mg sulfate phase Na2Mg(SO4)2·16H2O is one of the lowest‐temperature mineral phases likely to be stable on Europa's surface and may therefore be astrobiologically significant.The precipitation of hydrated phases from a ...
Stephen P. Thompson +5 more
wiley +1 more source