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Molecular ionization rates and ultracompact dark matter minihalos
Joseph Silk
Molecular ionization in the Central Molecular Zone of our galaxy is enhanced over the typical galactic value by an order of magnitude or more. This cannot be easily explained for d…
Searches for gamma-ray lines and `pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with H.E.S.S
H. E. S. S. Collaboration, :, H. Abdalla +234
Dwarf spheroidal galaxies are among the most promising targets for detecting signals of Dark Matter (DM) annihilations. The H.E.S.S. experiment has observed five of these systems f…
Where do the AMS-02 anti-helium events come from?
Vivian Poulin, Pierre Salati, Ilias Cholis +2
We discuss the origin of the anti-helium-3 and -4 events possibly detected by AMS-02. Using up-to-date semi-analytical tools, we show that spallation from primary hydrogen and heli…
Pevatron at the Galactic Center: Multi-Wavelength Signatures from Millisecond Pulsars
Claire Guépin, Lucia Rinchiuso, Kumiko Kotera +3
Diffuse TeV emission has been observed by H.E.S.S. in the Galactic Center region, in addition to the GeV gamma rays observed by Fermi. We propose that a population of unresolved mi…
Does Fornax have a cored halo? Implications for the nature of dark matter
P. Boldrini, R. Mohayaee, J. Silk
Fornax is the most massive of the Milky Way dwarf spheroidal galaxies and has five globular clusters orbiting in a dense background of dark matter. Observational analyses suggest t…
Relativistic jet feedback III: feedback on gas disks
Dipanjan Mukherjee, Geoffrey V. Bicknell, Alexander Y. Wagner +2
We study the interactions of a relativistic jet with a dense turbulent gaseous disk of radius kpc. We have performed a suite of simulations with different mean density, je…