Decaying dark matter: a stacking analysis of galaxy clusters to improve on current limits

Abstract

We show that a stacking approach to galaxy clusters can improve current limits on decaying dark matter by a factor $\gtrsim 5-100$, with respect to a single source analysis, for all-sky instruments such as Fermi-LAT. Based on the largest sample of X-ray-selected galaxy clusters available to date (the MCXC meta-catalogue), we provide all the astrophysical information, in particular the astrophysical term for decaying dark matter, required to perform an analysis with current instruments.

arXiv comment6 pages, 3 figures, supplementary file available on demand, accepted for publication in PRD

References in corpus (35)

• A Universal Density Profile from Hierarchical Clustering
• The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
• The Aquarius Project: the subhalos of galactic halos
• The Mass Function of an X-Ray Flux-Limited Sample of Galaxy Clusters
• Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
• The $\nu$MSM, Dark Matter and Neutrino Masses
• Galaxy cluster X-ray luminosity scaling relations from a representative local sample (REXCESS)
• The MCXC: a Meta-Catalogue of X-ray detected Clusters of galaxies
• Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope
• Gravitino Dark Matter in R-Parity Breaking Vacua
• Statistics of X-ray observables for the cooling-core and non-cooling core galaxy clusters
• Gravitino Dark Matter without R-parity
• Diffuse gamma ray constraints on annihilating or decaying Dark Matter after Fermi
• The mass profile of A1413 observed with XMM-Newton: implications for the M-T relation
• Total mass biases in X-ray galaxy clusters
• Fermi Large Area Telescope Gamma-Ray Detection of the Radio Galaxy M87
• Constraints on Dark Matter Annihilation in Clusters of Galaxies with the Fermi Large Area Telescope
• Where to find a dark matter sterile neutrino?
• Prospects of detecting gamma-ray emission from galaxy clusters: cosmic rays and dark matter annihilations
• Gamma rays and positrons from a decaying hidden gauge boson
• Gamma-Rays from Decaying Dark Matter
• Probing Dark Matter Decay and Annihilation with Fermi LAT Observations of Nearby Galaxy Clusters
• Constraints on Decaying Dark Matter from Fermi Observations of Nearby Galaxies and Clusters
• Intense Gamma-Ray Lines from Hidden Vector Dark Matter Decay
• CLUMPY: a code for gamma-ray signals from dark matter structures
• Gamma Rays from Clusters and Groups of Galaxies: Cosmic Rays versus Dark Matter
• Implications of the Fermi-LAT diffuse gamma-ray measurements on annihilating or decaying Dark Matter
• Gamma-Ray Lines from Radiative Dark Matter Decay
• Searching for dark matter in X-rays: how to check the dark matter origin of a spectral feature
• Constraining Decaying Dark Matter with Fermi LAT Gamma-rays
• Eight-channel reconfigurable microring filters with tunable frequency, extinction ratio and bandwidth
• New Constraints from PAMELA anti-proton data on Annihilating and Decaying Dark Matter
• Composite Messenger Baryon as a Cold Dark Matter
• R-parity preserving super-WIMP decays
• Gamma-rays from Nearby Clusters: Constraints on Selected Decaying Dark Matter Models

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• Gamma ray constraints on Decaying Dark Matter
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• New Limits on the Dark Matter Lifetime from Dwarf Spheroidal Galaxies using Fermi-LAT
• CLUMPY: Jeans analysis, $\gamma$-ray and neutrino fluxes from dark matter (sub-)structures
• CLUMPY v3: $\gamma$-ray and $\nu$ signals from dark matter at all scales
• Dark matter substructure modelling and sensitivity of the Cherenkov Telescope Array to Galactic dark halos
• Dark Matter Indirect Signatures
• gamma-rays from annihilating dark matter in galaxy clusters: stacking vs single source analysis
• Constraining the dark matter contribution of $\gamma$ rays in Cluster of galaxies using Fermi-LAT data
• Constraints on the dark matter annihilation from Fermi-LAT observation of M31
• Indirect Detection of eV Dark Matter via Infrared Spectroscopy
• $\gamma$-ray and $\nu$ searches for dark matter subhalos in the Milky Way with a baryonic potential
• MINOT: Modeling the intracluster medium (non-)thermal content and observable prediction tools
• Extragalactic diffuse gamma-rays from dark matter annihilation: revised prediction and full modelling uncertainties
• Disentangling cosmic-ray and dark-matter induced gamma-rays in galaxy clusters?
• Neutron star mass in dark matter clumps
• Shining ALP Dark Radiation
• Prospects for $\gamma$-ray observations of the Perseus galaxy cluster with the Cherenkov Telescope Array
• Classification of gamma-ray targets for velocity-dependent and subhalo-boosted dark-matter annihilation