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The Milky Way's bright satellites as an apparent failure of LCDM
Michael Boylan-Kolchin, James S. Bullock, Manoj Kaplinghat
We use the Aquarius simulations to show that the most massive subhalos in galaxy-mass dark matter halos in LCDM are grossly inconsistent with the dynamics of the brightest Milky Wa…
Constraining Dark Matter Signal from a Combined Analysis of Milky Way Satellites with the Fermi-LAT
M. Llena Garde, J. Conrad, J. Cohen-Tanugi +2
Dwarf spheroidal galaxies have a large mass to light ratio and low astrophysical background, and are therefore considered one of the most promising targets for dark matter searches…
Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope
LAT Collaboration, M. Ackermann, M. Ajello +150
Satellite galaxies of the Milky Way are among the most promising targets for dark matter searches in gamma rays. We present a search for dark matter consisting of weakly interactin…
Dark Energy and Neutrino Masses from Future Measurements of the Expansion History and Growth of Structure
Shahab Joudaki, Manoj Kaplinghat
We forecast the expected cosmological constraints from a combination of probes of both the universal expansion rate and matter perturbation growth, in the form of weak lensing tomo…
Primordial non-Gaussianity from the 21 cm Power Spectrum during the Epoch of Reionization
Shahab Joudaki, Olivier Dore, Luis Ferramacho +2
Primordial non-Gaussianity is a crucial test of inflationary cosmology. We consider the impact of non-Gaussianity on the ionization power spectrum from 21 cm emission during the ep…
Too big to fail? The puzzling darkness of massive Milky Way subhaloes
Michael Boylan-Kolchin, James S. Bullock, Manoj Kaplinghat
We show that dissipationless LCDM simulations predict that the majority of the most massive subhaloes of the Milky Way are too dense to host any of its bright satellites (L_V > 10^…