Cross-correlations of direct gravitational probes of dark matter and the γ-ray sky represent a new frontier for indirect dark matter searches. Their potential stem from the fact that both types of signal are sourced by the underlying dark matter distribution in the cosmos. For instance, direct gravitational probes such as the clustering of structures-like galaxies or clusters of galaxies-or weak gravitational lensing, trace the distribution of matter on large scales. Similarly, γ rays generated as final products of annihilations or decays of particles of dark matter trace the same cosmic web, too. Here, I shall outline the salient points of this novel cross-correlation method, and review recent measurements, bounds, and forecasts.
Cosmological and astrophysical synergies for indirect dark matter detection
Camera S.
First
2020-01-01
Abstract
Cross-correlations of direct gravitational probes of dark matter and the γ-ray sky represent a new frontier for indirect dark matter searches. Their potential stem from the fact that both types of signal are sourced by the underlying dark matter distribution in the cosmos. For instance, direct gravitational probes such as the clustering of structures-like galaxies or clusters of galaxies-or weak gravitational lensing, trace the distribution of matter on large scales. Similarly, γ rays generated as final products of annihilations or decays of particles of dark matter trace the same cosmic web, too. Here, I shall outline the salient points of this novel cross-correlation method, and review recent measurements, bounds, and forecasts.
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