Search for Gamma-Ray Lines towards Galaxy Clusters with the Fermi-LAT

Abstract

We report on a search for monochromatic $\gamma$-ray features in the spectra of galaxy clusters observed by the \emph{Fermi} Large Area Telescope. Galaxy clusters are the largest structures in the Universe that are bound by dark matter (DM), making them an important testing ground for possible self-interactions or decays of the DM particles. Monochromatic $\gamma$-ray lines provide a unique signature due to the absence of astrophysical backgrounds and are as such considered a smoking-gun signature for new physics. An unbinned joint likelihood analysis of the sixteen most promising clusters using five years of data at energies between 10 and 400 GeV revealed no significant features. For the case of self-annihilation, we set upper limits on the monochromatic velocity-averaged interaction cross section. These limits are compatible with those obtained from observations of the Galactic Center, albeit weaker due to the larger distance to the studied clusters.

arXiv comment17 pages, 6 figures, 1 table; minor changes to match version to appear in JCAP, corresponding authors: B. Anderson & S. Zimmer

References in corpus (67)

• A Universal Density Profile from Hierarchical Clustering
• Particle Dark Matter: Evidence, Candidates and Constraints
• The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
• A direct empirical proof of the existence of dark matter
• The Aquarius Project: the subhalos of galactic halos
• Dark Matter Candidates from Particle Physics and Methods of Detection
• Fermi Large Area Telescope First Source Catalog
• The Mass Function of an X-Ray Flux-Limited Sample of Galaxy Clusters
• Non-Baryonic Dark Matter - Observational Evidence and Detection Methods
• Formation of Galaxy Clusters
• The spectrum of isotropic diffuse gamma-ray emission between 100 MeV and 820 GeV
• Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope
• The Fermi Large Area Telescope On Orbit: Event Classification, Instrument Response Functions, and Calibration
• Dark Matter Constraints from Observations of 25 Milky Way Satellite Galaxies with the Fermi Large Area Telescope
• Explosive Dark Matter Annihilation
• Trial factors for the look elsewhere effect in high energy physics
• A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope
• Updated Search for Spectral Lines from Galactic Dark Matter Interactions with Pass 8 Data from the Fermi Large Area Telescope
• The Mass-Concentration-Redshift Relation of Cold Dark Matter Halos
• Statistics of X-ray observables for the cooling-core and non-cooling core galaxy clusters
• Significant Gamma Lines from Inert Higgs Dark Matter
• Particle Models and the Small-Scale Structure of Dark Matter
• Search for Gamma-ray Spectral Lines with the Fermi Large Area Telescope and Dark Matter Implications
• Full One-loop Calculation of Neutralino Annihilation into Two Photons
• Fermi LAT Search for Dark Matter in Gamma-ray Lines and the Inclusive Photon Spectrum
• The power spectrum of SUSY-CDM on sub-galactic scales
• What mass are the smallest protohalos?
• The flattening of the concentration-mass relation towards low halo masses and its implications for the annihilation signal boost
• The Phoenix Project: the Dark Side of Rich Galaxy Clusters
• Fermi LAT Search for Photon Lines from 30 to 200 GeV and Dark Matter Implications
• Fermi Large Area Telescope Gamma-Ray Detection of the Radio Galaxy M87
• Fermi Large Area Telescope Third Source Catalog
• Search for cosmic-ray induced gamma-ray emission in Galaxy Clusters
• Dark Matter Candidates
• Dark Matter Candidates - Axions, Neutralinos, Gravitinos, and Axinos
• Full calculation of clumpiness boost factors for antimatter cosmic rays in the light of Lambda-CDM N-body simulation results
• Hierarchical Formation of Dark Matter Halos and the Free Streaming Scale
• Fermi 130 GeV gamma-ray excess and dark matter annihilation in sub-haloes and in the Galactic centre
• Prospects of detecting gamma-ray emission from galaxy clusters: cosmic rays and dark matter annihilations
• Dark matter searches with Cherenkov telescopes: nearby dwarf galaxies or local galaxy clusters?
• Structure, mass and distance of the Virgo cluster from a Tolman-Bondi model
• The Copernicus Complexio: a high-resolution view of the small-scale Universe
• Density Profiles of CDM Microhalos and their Implications for Annihilation Boost Factors
• Detection of very-high energy γ-ray emission from NGC 1275 by the MAGIC telescopes
• Probing Dark Matter Decay and Annihilation with Fermi LAT Observations of Nearby Galaxy Clusters
• Higgs in Space!
• Search for heavy bottom-like quarks in 4.9 inverse femtobarns of pp collisions at sqrt(s) = 7 TeV
• Strong Evidence for Gamma-ray Line Emission from the Inner Galaxy
• Fermi-LAT constraints on dark matter annihilation cross section from observations of the Fornax cluster
• What if Dark Matter Gamma-Ray Lines come with Gluon Lines?
• Extra U(1) as natural source of a monochromatic gamma ray line
• Constraints on diffuse gamma-ray emission from structure formation processes in the Coma cluster
• 130 GeV dark matter and the Fermi gamma-ray line
• Indirect detection of light neutralino dark matter in the NMSSM
• Implications of a 130 GeV Gamma-Ray Line for Dark Matter
• Hunting the lightest lightest neutralinos
• An evidence for indirect detection of dark matter from galaxy clusters in Fermi-LAT data
• Properties of Dark Matter Haloes
• Statistical Issues in Astrophysical Searches for Particle Dark Matter
• The Dark Matter Annihilation Signal from Dwarf Galaxies and Subhalos
• Dark Matter
• New Limits On Gamma-Ray Emission From Galaxy Clusters
• A Stacked Analysis of Brightest Cluster Galaxies Observed with the Fermi Large Area Telescope
• Using Likelihood for Combined Data Set Analysis
• A Combined Analysis of Clusters of Galaxies - Gamma Ray Emission from Cosmic Rays and Dark Matter
• Enhancement of Line Gamma Ray Signature from Bino-like Dark Matter Annihilation due to CP Violation
• Search for Gamma-ray Line Signatures with H.E.S.S

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• Halo Substructure Boosts to the Signatures of Dark Matter Annihilation
• A Search for Dark Matter Annihilation in Galaxy Groups
• Search for a gamma-ray line feature from a group of nearby Galaxy clusters with Fermi LAT Pass 8 data
• Mapping Extragalactic Dark Matter Annihilation with Galaxy Surveys: A Systematic Study of Stacked Group Searches
• Cross-correlating the gamma-ray sky with catalogs of galaxy clusters
• The Abundance and Structure of Subhaloes near the Free Streaming Scale and Their Impact on Indirect Dark Matter Searches
• Search for gamma-ray spectral lines with the DArk Matter Particle Explorer
• Tidal evolution of dark matter annihilation rates in subhalos
• Evolution of dark matter microhalos through stellar encounters
• Impact of axisymmetric mass models for dwarf spheroidal galaxies on indirect dark matter searches
• Dark matter searches by the planned gamma-ray telescope GAMMA-400
• The look-elsewhere effect from a unified Bayesian and frequentist perspective
• On methods for correcting for the look-elsewhere effect in searches for new physics
• General calculation of the cross section for dark matter annihilations into two photons
• TeV Dark Matter Searches in the Extragalactic Gamma-Ray Sky
• Search for gamma-ray line features from Milky Way satellites with Fermi-LAT Pass 8 data
• Status of Indirect (and Direct) Dark Matter searches
• Search for gamma-ray line signals around the black hole at the galactic center with DAMPE observation
• Limits on Dark Matter annihilation cross sections to gamma-ray lines with subhalo distribution in N-body simulation and Fermi LAT data
• Search for GeV Gamma-Ray Emission from SPT-SZ selected Galaxy Clusters with 15 years of Fermi-LAT data
• Testing One Hypothesis Multiple Times: The Multidimensional Case
• Searching for dark matter annihilation from individual halos: uncertainties, scatter and signal-to-noise ratios
• Search for the gamma-ray spectral lines with the DAMPE and the Fermi-LAT observations
• Search for line-like and box-shaped spectral features from nearby galaxy clusters with 11.4 years of Fermi LAT data
• Search for line signal candidates in the Fermi-LAT data
• Self-Calibrating the Look-Elsewhere Effect: Fast Evaluation of the Statistical Significance Using Peak Heights
• Gamma-ray line constraints on Coy Dark Matter
• Search for Dark Matter Annihilation to gamma-rays from SPT-SZ selected Galaxy Clusters
• Interpretations of the possible 42.7 GeV $\gamma$-ray line
• Testing One Hypothesis Multiple times
• Is the gamma-ray emission around the Coma galaxy cluster a dark matter origin?
• Extragalactic Searches for Dark Matter Annihilation