Results 11 to 20 of about 33,866 (165)
Magnification by Galaxy Group Dark Matter Halos [PDF]
The Astrophysical Journal, 2012 We report on the detection of gravitational lensing magnification by a population of galaxy groups, at a significance level of 4.9 sigma. Using X-ray selected groups in the COSMOS 1.64 deg^2 field, and high-redshift Lyman break galaxies as sources, we ...
Alexie Leauthaud +26 more
core +7 more sources
Galaxy Galaxy Lensing as a Probe of Galaxy Dark Matter Halos
, 2006 Gravitational lensing has now become a popular tool to measure the mass distribution of structures in the Universe on various scales. Here we focus on the study of galaxy's scale dark matter halos with galaxy-galaxy lensing techniques: observing the ...
Kneib, J-P., Limousin, M., Natarajan, P.
core +4 more sources
The dark matter haloes of HI selected galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT We present the neutral hydrogen mass (MHI) function (HIMF) and velocity width (w50) function (HIWF) based on a sample of 7857 galaxies from the 40 per cent data release of the ALFALFA survey (α.40). The low mass (velocity width) end of the HIMF (HIWF) is dominated by the blue population of galaxies whereas the red population ...
Saili Dutta +2 more
openaire +2 more sources
Cuspy dark matter haloes and the Galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 5 pages, 1 figures, MNRAS (submitted)
Binney, J, Evans, N
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The evolution of the galaxy content of dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 We use the halo occupation distribution (HOD) framework to characterise the predictions from two independent galaxy formation models for the galactic content of dark matter haloes and its evolution with redshift. Our galaxy samples correspond to a range of fixed number densities defined by stellar mass and span $0 \le z \le 3$.
Contreras, S. +4 more
openaire +3 more sources
Dark matter annihilation in the first galaxy haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 11 pages, 10 figures.
Schoen, S +4 more
openaire +3 more sources
Galaxy Disruption in a Halo of Dark Matter
Science, 2003 The relics of disrupted satellite galaxies have been found around the Milky Way and Andromeda, but direct evidence of a satellite galaxy in the early stages of disruption has remained elusive. We have discovered a dwarf satellite galaxy in the process of being torn apart by gravitational tidal forces as it merges with a larger galaxy's dark matter halo.
Forbes, Duncan +4 more
openaire +4 more sources
DARK MATTER HALOS OF BARRED DISK GALAXIES [PDF]
The Astrophysical Journal, 2015 We use a large volume-limited sample of disk galaxies drawn from the Sloan Digital Sky Survey Data Release 7 to study the dependence of the bar fraction on the stellar-to-halo mass ratio, making use of a group catalog, we identify central and satellite galaxies in our sample.
Bernardo Cervantes Sodi +2 more
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Dark Matter Halos in Elliptical Galaxies
The Astrophysical Journal, 1993 Values of the M/L B ratio in the inner regions of elliptical (E) galaxies are determined using ionized gas disks as tracers of the triaxial potential. These data, when combined with those provided by the H I disks extending to the outer regions, show that the variation of M/L B with galactocentric radius in Es is similar to that of spirals.
BERTOLA F +3 more
openaire +1 more source
THE PROLATE DARK MATTER HALO OF THE ANDROMEDA GALAXY [PDF]
The Astrophysical Journal, 2014 Typos corrected. Replaced to match published version.
Hayashi, Kohei, Chiba, Masashi
openaire +2 more sources