Results 11 to 20 of about 234,039 (316)
How does dark matter affect compact star properties and high density constraints of strongly interacting matter [PDF]
EPJ Web of Conferences, 2022 We study the impact of asymmetric bosonic dark matter on neutron star properties, including possible changes of tidal deformability, maximum mass, radius, and matter distribution inside the star.
Sagun Violetta +4 more
doaj +1 more source
The graininess of dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 We use the recently completed one billion particle Via Lactea II LambdaCDM simulation to investigate local properties like density, mean velocity, velocity dispersion, anisotropy, orientation and shape of the velocity dispersion ellipsoid, as well as structure in velocity space of dark matter haloes.
Joachim Stadel +8 more
openaire +7 more sources
Dark energy and dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 16 p., 11 fig.; replaced with revised version, accepted for publication in MNRAS; corrected error (w=-1.5 halo mass function now agrees with Jenkins et al.
Andrew R. Zentner +4 more
openaire +3 more sources
Microlensing in dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 Using eight dark matter haloes extracted from fully-self consistent cosmological N-body simulations, we perform microlensing experiments. A hypothetical observer is placed at a distance of 8.5 kpc from the centre of the halo measuring optical depths, event durations and event rates towards the direction of the Large Magellanic Cloud.
Chris Flynn +4 more
openaire +4 more sources
The Astrophysical Journal, 2022 Abstract M54 is a prototype for a globular cluster embedded in a dark matter halo. Gaia Early Data Release 3 photometry and proper motions separate the old, metal-poor stars from the more metal-rich and younger dwarf galaxy stars. The metal-poor stars dominate the inner 50 pc, with a velocity dispersion profile that declines to a minimum
Raymond G. Carlberg, Carl J. Grillmair
openaire +4 more sources
European Physical Journal C: Particles and Fields, 2023 Supermassive black holes from the center of galaxy may be immersed in a dark matter halo. This dark matter halo may form a “cusp” structure around the black hole and disappear at a certain distance from the black hole.
Dong Liu +4 more
doaj +1 more source
The Astrophysical Journal, 2023 Baryons both increase halo concentration through adiabatic contraction and expel mass through feedback processes. However, it is not well understood how the radiation fields prevalent during the epoch of reionization affect the evolution of concentration
Hanjue Zhu, Nickolay Y. Gnedin
doaj +1 more source
Baryons shaping dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT In this work, we aim at investigating the effects of baryons on the dark matter (DM) haloes structure, focusing on the correlation between the presence and importance of stellar discs and the halo shapes. We study the properties of a subsample of DM haloes from Fenix and eagle cosmological simulations.
M. C. Artale +4 more
openaire +4 more sources
Caustics in dark matter haloes [PDF]
EAS Publications Series, 2006 Comment: Minor changes, two references added, 6 pages, 3 figures, to appear in Proc. 21st IAP Colloquium "Mass Profiles and Shapes of Cosmological Structures", Paris 4-9 July 2005, [EAS Publications Series, eds: G. Mamon, F. Combes, C. Deffayet, B. Fort]
Roya Mohayaee +5 more
openaire +4 more sources
Disk Galaxies Are Self-similar: The Universality of the H i-to-Halo Mass Ratio for Isolated Disks
The Astrophysical Journal Letters, 2023 Observed scaling relations in galaxies between baryons and dark matter global properties are key to shed light on the process of galaxy formation and on the nature of dark matter.
Marie Korsaga +9 more
doaj +1 more source