12-16 September 2016
CERN
Europe/Zurich timezone
There is a live webcast for this event.

IGRB tomography and Dark Matter Searches via cross-correlations with Large Scale Structures

12 Sep 2016, 18:30
15m
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
Show room on map
Oral Contributions Gamma-ray astrophysics Gamma-ray astrophysics

Speaker

Alessandro Cuoco (RWTH Aachen TTK)

Description

will be based on

A.~Cuoco, J.~Q.~Xia, M.~Regis, E.~Branchini, N.~Fornengo and M.~Viel,
%``Dark Matter Searches in the Gamma-ray Extragalactic Background via Cross-correlations With Galaxy Catalogs,''
Astrophys.\ J.\ Suppl.\ {\bf 221} (2015) no.2, 29
doi:10.1088/0067-0049/221/2/29
[arXiv:1506.01030 [astro-ph.HE]]

M.~Regis, J.~Q.~Xia, A.~Cuoco, E.~Branchini, N.~Fornengo and M.~Viel,
%``Particle dark matter searches outside the Local Group,''
Phys.\ Rev.\ Lett.\ {\bf 114} (2015) no.24, 241301
doi:10.1103/PhysRevLett.114.241301
[arXiv:1503.05922 [astro-ph.CO]].

J.~Q.~Xia, A.~Cuoco, E.~Branchini and M.~Viel,
%``Tomography of the Fermi-lat $\gamma$-ray Diffuse Extragalactic Signal via Cross Correlations With Galaxy Catalogs,''
Astrophys.\ J.\ Suppl.\ {\bf 217} (2015) no.1, 15
doi:10.1088/0067-0049/217/1/15
[arXiv:1503.05918 [astro-ph.CO]].

Summary

I will discuss the recent observations of correlation of the Extra-Galactic Gamma-ray Background with catalogues of galaxies as tracers of the Large Scale Structures of the Universe. These observations offer a new way to investigate the diffuse extra-galactic gamma-rays providing access to the redshift distribution of this emission. Furthermore, this allows to derive new stringent constraints on the presence of a possible dark matter annihilation signal.

Primary author

Alessandro Cuoco (RWTH Aachen TTK)

Presentation Materials