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New Pathways to the Relic Abundance of Vector-Portal Dark Matter
Patrick J. Fitzpatrick, Hongwan Liu, Tracy R. Slatyer +1
We fully explore the thermal freezeout histories of a vector-portal dark matter model, in the region of parameter space in which the ratio of masses of the dark photon …
Lyman- Constraints on Cosmic Heating from Dark Matter Annihilation and Decay
Hongwan Liu, Wenzer Qin, Gregory W. Ridgway +1
We derive new constraints on models of decaying and annihilating dark matter (DM) by requiring that the energy injected into the intergalactic medium (IGM) not overheat it at late…
Prospects for Heavy WIMP Dark Matter with CTA: the Wino and Higgsino
Lucia Rinchiuso, Oscar Macias, Emmanuel Moulin +2
TeV-scale particles that couple to the standard model through the weak force represent a compelling class of dark matter candidates. The search for such Weakly Interacting Massive…
INTEGRAL constraints on primordial black holes and particle dark matter
Ranjan Laha, Julian B. Muñoz, Tracy R. Slatyer
The International Gamma-Ray Astrophysics Laboratory (INTEGRAL) satellite has yielded unprecedented measurements of the soft gamma-ray spectrum of our Galaxy. Here we use those meas…
The Enigmatic Galactic Center Excess: Spurious Point Sources and Signal Mismodeling
Rebecca K. Leane, Tracy R. Slatyer
The Galactic Center GeV excess (GCE) has garnered great interest as a possible signal of either dark matter annihilation or some novel astrophysical phenomenon, such as a new popul…
Spurious Point Source Signals in the Galactic Center Excess
Rebecca K. Leane, Tracy R. Slatyer
We re-examine evidence that the Galactic Center Excess (GCE) originates primarily from point sources (PSs). We show that in our region of interest, non-Poissonian template fitting…