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CMBPol Mission Concept Study: Gravitational Lensing
Kendrick M. Smith, Asantha Cooray, Sudeep Das +10
Gravitational lensing of the cosmic microwave background by large-scale structure in the late universe is both a source of cosmological information and a potential contaminant of p…
A common mass scale for satellite galaxies of the Milky Way
Louis E. Strigari, James S. Bullock, Manoj Kaplinghat +4
The Milky Way has at least twenty-three known satellite galaxies that shine with luminosities ranging from about a thousand to a billion times that of the Sun. Half of these galaxi…
Proper Motion of Milky Way Dwarf Spheroidals from Line-of-Sight Velocities
Manoj Kaplinghat, Louis E. Strigari
Proper motions for several Milky Way dwarf spheroidal (dSph) galaxies have been determined using both ground and space-based imaging. These measurements require long baselines and…
Effects of galaxy-halo alignment and adiabatic contraction on gravitational lens statistics
Quinn E. Minor, Manoj Kaplinghat
We study the strong gravitational lens statistics of triaxial cold dark matter (CDM) halos occupied by central early-type galaxies. We calculate the image separation distribution f…
The Most Dark Matter Dominated Galaxies: Predicted Gamma-ray Signals from the Faintest Milky Way Dwarfs
Louis E. Strigari, Savvas M. Koushiappas, James S. Bullock +4
We use kinematic data from three new, nearby, extremely low-luminosity Milky Way dwarf galaxies (Ursa Major II, Willman 1, and Coma Berenices) to constrain the properties of their…
MeV Dark Matter and Small Scale Structure
Dan Hooper, Manoj Kaplinghat, Louis E. Strigari +1
WIMPs with electroweak scale masses (neutralinos, etc.) remain in kinetic equilibrium with other particle species until temperatures approximately in the range of 10 MeV to 1 GeV,…