The characterization of the gamma-ray signal from the central Milky Way: A case for annihilating dark matter

  title={The characterization of the gamma-ray signal from the central Milky Way: A case for annihilating dark matter},
  author={T. Daylan and Douglas P. Finkbeiner and Dan Hooper and Tim Linden and Stephen K. N. Portillo and Nicholas L. Rodd and Tracy R. Slatyer},
  journal={Physics of the Dark Universe},
Does the gamma-ray signal from the central Milky Way indicate Sommerfeld enhancement of dark matter annihilation?
Recently, some studies showed that the GeV gamma-ray excess signal from the central Milky Way can be explained by the annihilation of ∼ 40 GeV dark matter through the bb̄ channel. Based on the
Ruling out dark matter interpretation of the galactic GeV excess by gamma-ray data of galaxy clusters
This article reports that there are two excellent galaxy clusters (A2877 and Fornax) which can provide interesting constraints for annihilating dark matter and improves the Fermi-LAT upper limits of annihilation cross sections.
Enhanced lines and box-shaped features in the gamma-ray spectrum from annihilating dark matter in the NMSSM
We study spectral features in the gamma-ray emission from dark matter (DM) annihilation in the Next-to-Minimal Supersymmetric Standard Model (NMSSM), with either neutralino or right-handed (RH)
An excess radio signal in the Abell 4038 cluster
In the past decade, various instruments, such as the Large Area Telescope (LAT) on the Fermi Gamma Ray Space Telescope, the Alpha Magnetic Spectrometer (AMS) and the Dark Matter Particle
Probing dark matter annihilation in the Galaxy with antiprotons and gamma rays
A possible hint of dark matter annihilation has been found in Cuoco, Korsmeier and Krämer (2017) from an analysis of recent cosmic-ray antiproton data from AMS-02 and taking into account cosmic-ray
A tale of tails: Dark matter interpretations of the Fermi GeV excess in light of background model systematics
Several groups have identified an extended excess of gamma rays over the modeled foreground and background emissions towards the Galactic center (GC) based on observations with the Fermi Large Area
Prospects for annihilating Dark Matter towards Milky Way's dwarf galaxies by the Cherenkov Telescope Array
We derive the Cherenkov Telescope Array (CTA) sensitivity to dark matter (DM) annihilation in several primary channels, over a broad range of DM masses. These sensitivities are estimated when CTA is
Multiwavelength analysis of annihilating dark matter as the origin of the gamma-ray emission from M31
Author(s): McDaniel, Alex; Jeltema, Tesla; Profumo, Stefano | Abstract: [Abridged] Indirect detection of dark matter (DM) by multi-wavelength astronomical observations provides a promising avenue for
What the Milky Way’s dwarfs tell us about the Galactic Center extended gamma-ray excess
Author(s): Keeley, Ryan E; Abazajian, Kevork N; Kwa, Anna; Rodd, Nicholas L; Safdi, Benjamin R | Abstract: The Milky Way's Galactic Center harbors a gamma-ray excess that is a candidate signal of
Galactic dark matter search via phenomenological astrophysics modeling
Previous searches for the γ-ray signatures of annihilating galactic dark matter used predefined spatial templates to describe the background of γ-ray emission from astrophysical processes like cosmic


On The Origin Of The Gamma Rays From The Galactic Center
The region surrounding the center of the Milky Way is both astrophysically rich and complex, and is predicted to contain very high densities of dark matter. Utilizing three years of data from the
Stringent Constraints On The Dark Matter Annihilation Cross Section From Subhalo Searches With The Fermi Gamma-Ray Space Telescope
The dark matter halo of the Milky Way is predicted to contain a very large number of smaller subhalos. As a result of the dark matter annihilations taking place within such objects, the most nearby
Detection of a Gamma-Ray Source in the Galactic Center Consistent with Extended Emission from Dark Matter Annihilation and Concentrated Astrophysical Emission
We show the existence of a statistically significant, robust detection of a gamma-ray source in the Milky Way Galactic Center that is consistent with a spatially extended signal using about 4 years
Astrophysical and dark matter interpretations of extended gamma-ray emission from the Galactic Center
We construct empirical models of the diffuse gamma-ray background toward the Galactic Center. Including all known point sources and a template of emission associated with interactions of cosmic rays
A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope
The observation of a gamma-ray line in the cosmic-ray fluxes would be a smoking-gun signature for dark matter annihilation or decay in the Universe. We present an improved search for such signatures
Dark matter and pulsar model constraints from Galactic Center Fermi-LAT gamma-ray observations
Employing Fermi-LAT gamma ray observations, several independent groups have found excess extended gamma ray emission at the Galactic center (GC). Both, annihilating dark matter (DM) or a population
Evidence for extended gamma-ray emission from galaxy clusters
We report evidence for extended gamma-ray emission from the Virgo, Fornax and Coma clusters based on a maximum-likelihood analysis of the 3-year Fermi-LAT data. For all three clusters, excess
The galactic center region gamma ray excess from a supersymmetric leptophilic Higgs model
In a recent paper by Hooper and Goodenough, data from the Fermi Gamma Ray Telescope was analyzed and an excess of gamma rays was claimed to be found in the emission spectrum from the Galactic Center
Evaluating the Gamma-Ray Evidence for Self-Annihilating Dark Matter from the Virgo Cluster
Based on three years of Fermi Large Area Telescope (LAT) gamma-ray data of the Virgo cluster, evidence for an extended emission associated with dark matter pair annihilation in the b b-bar channel