Results 31 to 40 of about 33,866 (165)
Dark Matter Halos around Galaxies
, 1997 27 pages, latex, 18 figures. Review to appear in "Dark and Visible Matter in Galaxies". Proceedings of the Sesto DM1996 Conference Eds M. Persic & P. Salucci. ASP Proceedings Conference Series 1997 also available at ftp://galileo.sissa.it/users/ftp/pub/psrot/persucci ...
Salucci, Paolo, Persic M.
openaire +3 more sources
Rotation of Galaxy Dark Matter Halos [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractThe degree to which outer dark matter halos of spiral galaxies rotate with the disk is sensitive to their accretion history and may be probed with associated satellite galaxies. We use the Steward Observatory Bok telescope to measure the sense of rotation of nearby isolated spirals and combine these data with those of their associated ...
Stéphane Herbert-Fort +4 more
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Properties and Origin of Galaxy Velocity Bias in the Illustris Simulation
, 2017 We use the hydrodynamical galaxy formation simulations from the Illustris suite to study the origin and properties of galaxy velocity bias, i.e., the difference between the velocity distributions of galaxies and dark matter inside halos.
Guo, Hong +3 more
core +1 more source
Stability of Satellite Planes in M31 II: Effects of the Dark Subhalo Population [PDF]
, 2017 The planar arrangement of nearly half the satellite galaxies of M31 has been a source of mystery and speculation since it was discovered. With a growing number of other host galaxies showing these satellite galaxy planes, their stability and longevity ...
Amanda Dwojak (4229590) +23 more
core +2 more sources
Constraining the substructure of dark matter haloes with galaxy–galaxy lensing [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 19 pages, 14 figures, accepted by ...
Li, Ran +4 more
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Power spectrum tomography of dark matter annihilation with local galaxy distribution
, 2014 Cross-correlating the gamma-ray background with local galaxy catalogs potentially gives stringent constraints on dark matter annihilation. We provide updated theoretical estimates of sensitivities to the annihilation cross section from gamma-ray data ...
Ando, Shin'ichiro
core +1 more source
The cosmic web of dwarf galaxies in a warm versus cold dark matter universe: mock galaxies in CDM and WDM simulations [PDF]
, 2015 Using cosmological simulations, we show that the cosmic web of dwarf galaxies in a warm dark matter (WDM) universe, wherein low mass halo formation is heavily suppressed, is nearly indistinguishable to that of a cold dark matter (CDM) universe whose low ...
Bawaj, Mateusz +13 more
core +6 more sources
Dark energy and dark matter in galaxy halos
Physics Letters B, 2006 7 pages, 1 figure, references added and discussion ...
openaire +3 more sources
The Effect of Splashback on Weak Lensing Mass Estimates of Galaxy Clusters and Groups
The Open Journal of Astrophysics, 2023 The splashback radius of a dark matter halo, which corresponds to the first apocenter radius reached by infalling matter and substructures, has been detected around galaxy clusters using a multitude of observational methods, including weak lensing ...
Yuanyuan Zhang +5 more
doaj +1 more source
On Halo Formation Times and Assembly Bias
, 2008 In this paper we use the ``Millennium Simulation'' to re-examine the mass assembly history of dark matter halos and the age dependence of halo clustering. We use eight different definitions of halo formation times to characterize the different aspects of
Angulo +63 more
core +1 more source