PT Journal
AU Villaescusa-Navarro, F
   Dalal, N
TI Cores and cusps in warm dark matter halos
SO Journal of Cosmology and Astroparticle Physics
JI J. Cosmol. Astropart. Phys.
PY 2011
BP 024
EP 16pp
VL 03
IS 3
DI 10.1088/1475-7516/2011/03/024
LA English
DE dark matter theory; dark matter simulations; dwarfs galaxies; rotation curves of galaxies
AB The apparent presence of large core radii in Low Surface Brightness galaxies has been claimed as evidence in favor of warm dark matter. Here we show that WDM halos do not have cores that are large fractions of the halo size: typically, r(core)/r(200) less than or similar to 10(-3). This suggests an astrophysical origin for the large cores observed in these galaxies, as has been argued by other authors.
ER