Dwarf galaxy annihilation and decay emission profiles for dark matter experiments

Abstract

Gamma-ray searches for dark matter annihilation and decay in dwarf galaxies rely on an understanding of the dark matter density profiles of these systems. Conversely, uncertainties in these density profiles propagate into the derived particle physics limits as systematic errors. In this paper we quantify the expected dark matter signal from 20 Milky Way dwarfs using a uniform analysis of the most recent stellar-kinematic data available. Assuming that the observed stellar populations are equilibrium tracers of spherically-symmetric gravitational potentials that are dominated by dark matter, we find that current stellar-kinematic data can predict the amplitudes of annihilation signals to within a factor of a few for the ultra-faint dwarfs of greatest interest. On the other hand, the expected signal from several classical dwarfs (with high-quality observations of large numbers of member stars) can be localized to the ~20% level. These results are important for designing maximally sensitive searches in current and future experiments using space and ground-based instruments.

arXiv comment18 pages, 9 figures, 4 tables, 2 ancillary tables with J and J_decay constraints and profile parameters (see Appendix), matches version that appears in ApJ

References in corpus (68)

• A Universal Density Profile from Hierarchical Clustering
• The Structure of Cold Dark Matter Halos
• MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics
• The observed properties of dwarf galaxies in and around the Local Group
• Multimodal nested sampling: an efficient and robust alternative to MCMC methods for astronomical data analysis
• The Kinematics of the Ultra-Faint Milky Way Satellites: Solving the Missing Satellite Problem
• Design Concepts for the Cherenkov Telescope Array
• Dark Matter Annihilation in The Galactic Center As Seen by the Fermi Gamma Ray Space Telescope
• Cats and Dogs, Hair and A Hero: A Quintet of New Milky Way Companions
• LCDM-based models for the Milky Way and M31 I: Dynamical Models
• A Universal Mass Profile for Dwarf Spheroidal Galaxies?
• Analytical Models For Galactic Nuclei
• The Dependence of Halo Clustering on Halo Formation History, Concentration, and Occupation
• Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope
• The redshift dependence of the structure of massive LCDM halos
• A comprehensive Maximum Likelihood analysis of the structural properties of faint Milky Way satellites
• Detection of a Gamma-Ray Source in the Galactic Center Consistent with Extended Emission from Dark Matter Annihilation and Concentrated Astrophysical Emission
• A New Milky Way Dwarf Galaxy in Ursa Major
• Dark Matter Constraints from Observations of 25 Milky Way Satellite Galaxies with the Fermi Large Area Telescope
• Halo Substructure And The Power Spectrum
• A constant dark matter halo surface density in galaxies
• Astrophysical and Dark Matter Interpretations of Extended Gamma-Ray Emission from the Galactic Center
• A New Milky Way Dwarf Satellite in Canes Venatici
• The Dark Matter Halo of the Milky Way, AD 2013
• A Curious New Milky Way Satellite in Ursa Major
• The Kinematics, Orbit, and Survival of the Sagittarius Dwarf Spheroidal Galaxy
• Dark matter in elliptical galaxies: II. Estimating the mass within the virial radius
• Exclusion of canonical WIMPs by the joint analysis of Milky Way dwarfs with Fermi
• A Complete Spectroscopic Survey of the Milky Way Satellite Segue 1: The Darkest Galaxy
• A Prescription for Building the Milky Way's Halo from Disrupted Satellites
• Stellar Velocities in the Carina, Fornax, Sculptor and Sextans dSph Galaxies: Data from the Magellan/MMFS Survey
• The Dynamics of Sinking Satellites Around Disk Galaxies: A Poor Man's Alternative to High-Resolution Numerical Simulations
• The Least Luminous Galaxy: Spectroscopy of the Milky Way Satellite Segue 1
• A Pair of Bootes: A New Milky Way Satellite
• Segue 2: A Prototype of the Population of Satellites of Satellites
• The Velocity Dispersion Profile of the Remote Dwarf Spheroidal Galaxy Leo I: A Tidal Hit and Run?
• Accurate Stellar Kinematics at Faint Magnitudes: application to the Bootes~I dwarf spheroidal galaxy
• Precise constraints on the dark matter content of Milky Way dwarf galaxies for gamma-ray experiments
• The tidal stripping of satellites
• A comment on the emission from the Galactic Center as seen by the Fermi telescope
• Big fish, small fish: Two New Ultra-Faint Satellites of the Milky Way
• Leo V: A Companion of a Companion of the Milky Way Galaxy
• The Evolution of Substructure in Galaxy, Group and Cluster Haloes I: Basic Dynamics
• Segue 2: The Least Massive Galaxy
• Dwarf spheroidal galaxy kinematics and spiral galaxy scaling laws
• Willman 1 - a probable dwarf galaxy with an irregular kinematic distribution
• Indirect Dark Matter Detection from Dwarf Satellites: Joint Expectations from Astrophysics and Supersymmetry
• Inflation, cold dark matter, and the central density problem
• Interpreting Debris from Satellite Disruption In External Galaxies
• Searches for Dark Matter annihilation signatures in the Segue 1 satellite galaxy with the MAGIC-I telescope
• Tidal Signatures in the Faintest Milky Way Satellites: The Detailed Properties of Leo V, Pisces II and Canes Venatici II
• VERITAS Deep Observations of the Dwarf Spheroidal Galaxy Segue 1
• Dark matter profiles and annihilation in dwarf spheroidal galaxies: prospectives for present and future gamma-ray observatories - I. The classical dSphs
• Revisiting the influence of unidentified binaries on velocity dispersion measurements in ultra-faint stellar systems
• Spherical Jeans analysis for dark matter indirect detection in dwarf spheroidal galaxies - Impact of physical parameters and triaxiality
• A Complete Spectroscopic Survey of the Milky Way satellite Segue 1: Dark matter content, stellar membership and binary properties from a Bayesian analysis
• Direct Constraints on Minimal Supersymmetry from Fermi-LAT Observations of the Dwarf Galaxy Segue 1
• A photometric and spectroscopic study of the new dwarf spheroidal galaxy in Hercules
• A new low mass for the Hercules dSph: the end of a common mass scale for the dwarfs?
• Leo V: Spectroscopy of a Distant and Disturbed Satellite
• Indirect Dark Matter Detection Limits from the Ultra-Faint Milky Way Satellite Segue 1
• Extracting limits on Dark Matter annihilation from gamma-ray observations towards dwarf spheroidal galaxies
• Dark matter line search using a joint analysis of dwarf galaxies with the Fermi Gamma-ray Space Telescope
• LSST: a Complementary Probe of Dark Energy
• Dark matter in the classical dwarf spheroidal galaxies: a robust constraint on the astrophysical factor for gamma-ray flux calculations
• The enigmatic pair of dwarf galaxies Leo IV and Leo V: coincidence or common origin?
• A Deeper Look at Leo IV: Star Formation History and Extended Structure
• The Spitzer-South Pole Telescope Deep Field: Survey Design and IRAC Catalogs

Cited by in corpus (164)

• Searching for Dark Matter Annihilation from Milky Way Dwarf Spheroidal Galaxies with Six Years of Fermi-LAT Data
• Searching for Dark Matter Annihilation in Recently Discovered Milky Way Satellites with Fermi-LAT
• Limits to dark matter annihilation cross-section from a combined analysis of MAGIC and Fermi-LAT observations of dwarf satellite galaxies
• A review of indirect searches for particle dark matter
• The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2
• Search for Gamma-Ray Emission from DES Dwarf Spheroidal Galaxy Candidates with Fermi-LAT Data
• Dark matter annihilation and decay in dwarf spheroidal galaxies: The classical and ultrafaint dSphs
• MadDM v.3.0: a Comprehensive Tool for Dark Matter Studies
• Stellar Kinematics and Metallicities in the Ultra-Faint Dwarf Galaxy Reticulum II
• Dynamics of dwarf galaxies disfavor stellar-mass black hole dark matter
• Farthest Neighbor: The Distant Milky Way Satellite Eridanus II
• A Comprehensive Search for Dark Matter Annihilation in Dwarf Galaxies
• Indication of Gamma-ray Emission from the Newly Discovered Dwarf Galaxy Reticulum II
• Crater 2: An Extremely Cold Dark Matter Halo
• Magellan/M2FS Spectroscopy of Tucana 2 and Grus 1
• Dark Matter Constraints from a Joint Analysis of Dwarf Spheroidal Galaxy Observations with VERITAS
• Snake in the Clouds: A new nearby dwarf galaxy in the Magellanic bridge
• Nearest Neighbor: The Low-Mass Milky Way Satellite Tucana III
• Dark Matter Limits From Dwarf Spheroidal Galaxies with The HAWC Gamma-Ray Observatory
• Looking for the WIMP Next Door
• Diversity of dark matter density profiles in the Galactic dwarf spheroidal satellites
• Dark matter annihilation and decay from non-spherical dark halos in the Galactic dwarf satellites
• A Global Analysis of Dark Matter Signals from 27 Dwarf Spheroidal Galaxies using 11 Years of Fermi-LAT Observations
• Indirect Detection of Dark Matter Using MeV-Range Gamma-Ray Telescopes
• Gamma ray tests of Minimal Dark Matter
• Two Ultra-Faint Milky Way Stellar Systems Discovered in Early Data from the DECam Local Volume Exploration Survey
• Detecting the Stimulated Decay of Axions at Radio Frequencies
• Searching for decaying dark matter in deep XMM-Newton observation of the Draco dwarf spheroidal
• Constraining heavy dark matter with cosmic-ray antiprotons
• Simple J-Factors and D-Factors for Indirect Dark Matter Detection
• Deep XMM Observations of Draco rule out at the 99% Confidence Level a Dark Matter Decay Origin for the 3.5 keV Line
• Strong constraints on thermal relic dark matter from Fermi-LAT observations of the Galactic Center
• Dark Matter in Dwarf Spheroidal Galaxies and Indirect Detection: A Review
• New Limits on the Dark Matter Lifetime from Dwarf Spheroidal Galaxies using Fermi-LAT
• Scaling Relations for Dark Matter Annihilation and Decay Profiles in Dwarf Spheroidal Galaxies
• Looking for Axion Dark Matter in Dwarf Spheroidals
• Dark matter self-interactions from the internal dynamics of dwarf spheroidals
• On The Gamma-Ray Emission From Reticulum II and Other Dwarf Galaxies
• Probing dark matter annihilation in the Galaxy with antiprotons and gamma rays
• Top-philic dark matter within and beyond the WIMP paradigm
• The inert doublet model in the light of Fermi-LAT gamma-ray data: a global fit analysis
• Dark matter annihilation and decay profiles for the Reticulum II dwarf spheroidal galaxy
• Ships Passing in the Night: Spectroscopic Analysis of Two Ultra-Faint Satellites in the Constellation Carina
• Multiple Chemodynamic Stellar Populations of the Ursa Minor Dwarf Spheroidal Galaxy
• Search for Gamma-ray Emission from Dark Matter Annihilation in the Large Magellanic Cloud with the Fermi Large Area Telescope
• Search for dark matter signals towards a selection of recently-detected DES dwarf galaxy satellites of the Milky Way with H.E.S.S
• A critical reassessment of particle Dark Matter limits from dwarf satellites
• Searches for gamma-ray lines and `pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with H.E.S.S
• WIMP searches with gamma rays in the Fermi era: challenges, methods and results
• Structure Formation Models Weaken Limits on WIMP Dark Matter from Dwarf Spheroidal Galaxies
• Searching for Secluded Dark Matter with H.E.S.S., Fermi-LAT, and Planck
• Toward the full test of the nuMSM sterile neutrino dark matter model with Athena
• Sommerfeld-Enhanced $J$-Factors For Dwarf Spheroidal Galaxies
• Dark matter constraints from dwarf galaxies: a data-driven analysis
• Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco
• Pegasus IV: Discovery and Spectroscopic Confirmation of an Ultra-Faint Dwarf Galaxy in the Constellation Pegasus
• The Pristine Dwarf-Galaxy survey - II. In-depth observational study of the faint Milky Way satellite Sagittarius II
• A Search for Dark Matter Annihilation in the Milky Way Halo
• Indirect dark matter searches in the dwarf satellite galaxy Ursa Major II with the MAGIC Telescopes
• Contamination of stellar-kinematic samples and uncertainty about dark matter annihilation profiles in ultrafaint dwarf galaxies: the example of Segue I
• Breaking a dark degeneracy: The gamma-ray signature of early matter domination
• Search for Gamma-ray Emission from Dark Matter Annihilation in the Small Magellanic Cloud with the Fermi Large Area Telescope
• On velocity-dependent dark matter annihilations in dwarf satellites
• Boosted Dark Matter at Neutrino Experiments
• Effective $J$-factors for Milky Way dwarf spheroidal galaxies with velocity-dependent annihilation
• Dark Matter in $\gamma$ lines: Galactic Center vs dwarf galaxies
• Indirect Dark Matter Detection for Flattened Dwarf Galaxies
• The Pristine Dwarf-Galaxy survey -- III. Revealing the nature of the Milky Way globular cluster Sagittarius II
• Constraining self-interacting dark matter with scaling laws of observed halo surface densities
• Estimating the GeV Emission of Millisecond Pulsars in Dwarf Spheroidal Galaxies
• Lines and Boxes: Unmasking Dynamical Dark Matter through Correlations in the MeV Gamma-Ray Spectrum
• Global fit of pseudo-Nambu-Goldstone Dark Matter
• Stellar Density Profiles of Dwarf Spheroidal Galaxies
• eXTP perspectives for the $\nu$MSM sterile neutrino dark matter model
• Dwarf spheroidal J-factors without priors: A likelihood-based analysis for indirect dark matter searches
• A Search for Dark Matter Lines at the Galactic Center with 14 Years of Fermi Data
• Indirect Detection of eV Dark Matter via Infrared Spectroscopy
• Decaying dark matter in dwarf spheroidal galaxies: Prospects for X-ray and gamma-ray telescopes
• Gamma-Ray Dark Matter Searches in Milky Way Satellites -- A Comparative Review of Data Analysis Methods and Current Results
• Prospects for annihilating Dark Matter towards Milky Way's dwarf galaxies by the Cherenkov Telescope Array
• Dark Matter Density Profiles in Dwarf Galaxies: Linking Jeans Modeling Systematics and Observation
• Search for Ultraheavy Dark Matter from Observations of Dwarf Spheroidal Galaxies with VERITAS
• Radio constraints on dark matter annihilation in Canes Venatici I with LOFAR
• Galactic Origin of Relativistic Bosons and XENON1T Excess
• Heavy dark matter particle annihilation in dwarf spheroidal galaxies: radio signals at the SKA telescope
• Observation of the new emission line at ~3.5 keV in X-ray spectra of galaxies and galaxy clusters
• $J$-factors for self-interacting dark matter in 20 dwarf spheroidal galaxies
• Spectroscopic analysis of Milky Way outer halo satellites: Aquarius II and Bootes II
• Non-Minimal Dark Sectors: Mediator-Induced Decay Chains and Multi-Jet Collider Signatures
• A Pride of Satellites in the Constellation Leo? Discovery of the Leo VI Milky Way Satellite Galaxy with DELVE Early Data Release 3
• Foreground effect on the $J$-factor estimation of classical dwarf spheroidal galaxies
• Current and future gamma-ray searches for dark-matter annihilation beyond the unitarity limit
• Dark halo structure in the Carina dwarf spheroidal galaxy: joint analysis of multiple stellar components
• Novel Gamma-Ray Signatures of PeV-Scale Dark Matter
• TeV Dark Matter Searches in the Extragalactic Gamma-Ray Sky
• Indirect dark-matter detection with MadDM v3.2 -- Lines and Loops
• The Potential of the Dwarf Galaxy Triangulum II for Dark Matter Indirect Detection
• Can SKA--Phase 1 go much beyond the LHC in supersymmetry search?
• Composite dark matter phenomenology in the presence of lighter degrees of freedom
• A general study of decaying scalar dark matter: existing limits and projected radio signals at the SKA
• Wavelet-Based Techniques for the Gamma-Ray Sky
• Prospect for dark matter signatures from dwarf galaxies by LHAASO
• Foreground effect on the $J$-factor estimation of ultra-faint dwarf spheroidal galaxies
• Search for gamma-ray line features from Milky Way satellites with Fermi-LAT Pass 8 data
• MADHAT: Model-Agnostic Dark Halo Analysis Tool
• Constraints on late-forming exploding black holes
• Monochromatic neutrino lines from sneutrino dark matter
• Stringent constraint on the radio signal from dark matter annihilation in dwarf spheroidal galaxies using the TGSS
• Constraints on dark matter annihilation from the FAST observation of the Coma Berenices dwarf galaxy
• Uncovering dark matter density profiles in dwarf galaxies with graph neural networks
• Search for gamma-ray emission from the 12 nearby dwarf spheroidal galaxies with 12 years of Fermi-LAT data
• Constraints on the Sommerfeld-enhanced dark matter annihilation from the gamma rays of subhalos and dwarf galaxies
• What the Milky Way's Dwarfs tell us about the Galactic Center extended excess
• Indirect Detection of Sub-GeV Dark Matter Coupling to Quarks
• Expected LHAASO sensitivity to decaying dark matter signatures from dwarf galaxies gamma-ray emission
• Towards Testing Sterile Neutrino Dark Matter with Spectrum-Roentgen-Gamma Mission
• Search for gamma-ray emission from the nearby dwarf spheroidal galaxies with 9 years of Fermi-LAT data
• Constraining superheavy decaying dark matter with directional ultra-high energy gamma-ray limits
• Sommerfeld-enhanced dark matter searches with dwarf spheroidal galaxies
• On the Prospects for Detecting a Net Photon Circular Polarization Produced by Decaying Dark Matter
• Search for primordial black hole dark matter with X-ray spectroscopic and imaging satellite experiments and prospects for future satellite missions
• Search for heavy dark matter from dwarf spheroidal galaxies: leveraging cascades and subhalo models
• Dwarf spheroidal $J$-factor likelihoods for generalized NFW profiles
• The viability of ultralight bosonic dark matter in dwarf galaxies
• Harnessing the Population Statistics of Subhalos to Search for Annihilating Dark Matter
• Discovery prospects of dwarf spheroidal galaxies for indirect dark matter searches
• Detectability of dark matter subhalos by means of the GAMMA-400 telescope
• Decaying fermionic warm dark matter and XENON1T electronic recoil excess
• $J$-factor estimation of Draco, Sculptor and Ursa Minor dwarf spheroidal galaxies with the member/foreground mixture model
• Minding the MeV Gap: the Indirect Detection of Low Mass Dark Matter
• Searching for dark-matter induced neutrino signals in dwarf spheroidal galaxies using 10 years of IceCube public data
• Wobbly Dark Matter Signals at Cherenkov Telescopes from Long Lived Mediator Decays
• Dependence of accessible dark matter annihilation cross-sections on the density profiles of dwarf spheroidal galaxies with the Cherenkov Telescope Array
• Searching for relativistic axions in the sky
• Classification of gamma-ray targets for velocity-dependent and subhalo-boosted dark-matter annihilation
• Weakly interacting massive particle cross section limits from LOFAR observations of dwarf spheroidal galaxies
• Analysis of Fermi-LAT data from Tucana-II: Possible constraints on the Dark Matter models with an intriguing hint of a signal
• Universal dark halo scaling relation for the dwarf spheroidal satellites
• "Non-Local" Effects from Boosted Dark Matter in Indirect Detection
• Search for decaying heavy dark matter in an effective interaction framework: a comparison of $\gamma$-ray and radio observations
• Searching for light from a dark matter clump
• Trial by FIRE: Probing the dark matter density profile of dwarf galaxies with GraphNPE
• Oscillating Composite Asymmetric Dark Matter
• Leo I: the classical dwarf spheroidal galaxy with the highest dark-matter density
• Composite Dark Matter and Neutrino Masses from a Light Hidden Sector
• Combined dark matter search towards dwarf spheroidal galaxies with Fermi-LAT, HAWC, H.E.S.S., MAGIC, and VERITAS
• CTA in the Context of Searches for Particle Dark Matter - a glimpse
• Constraining Dwarf Spheroidal Dark Matter Halos With The Galactic Center Excess
• Cosmological prior for the $J$-factor estimation of dwarf spheroidal galaxies
• Dark Dwarfs: Dark Matter-Powered Sub-Stellar Objects Awaiting Discovery at the Galactic Center
• Prospects for measuring dark matter microphysics with observations of dwarf spheroidal galaxies
• Pointing optimization for IACTs on indirect dark matter searches
• DarkFlux: A new tool to analyze indirect-detection spectra of next-generation dark matter models
• Dark matter constraints from an observation of dSphs and the LMC with the Baikal NT200
• Indirect Detection of Low-mass Dark Matter Through the ${\pi }^0$ and $\eta$ Windows
• The quest for dark matter in dwarf spheroidal galaxies with the Cherenkov Telescope Array
• Combined search in dwarf spheroidal galaxies for branon dark matter annihilation signatures with the MAGIC telescopes
• Does the Reionization Model Influence the Constraints on Dark Matter Decay or Annihilation?
• Searching for dark matter annihilating into light long-lived mediators from stars inside dwarf spheroidal galaxies
• Chemodynamics of BoötesI with $S^5$: Revised Velocity Gradient, Dark Matter Density, and Galactic Chemical Evolution Constraints
• Broken Expectations: The Effects of Modelling Assumptions on the Inferred Dark Matter Distribution in the Milky Way's Satellites
• Magellan/IMACS spectroscopy of Grus I: A low metallicity ultra-faint dwarf galaxy
• Multi-component, axisymmetric dynamical models of dSphs based on distribution functions: inferences on dark matter and intermediate-mass black holes in Draco and Ursa Minor
• Constraining branon dark matter from observations of the Segue 1 dwarf spheroidal galaxy with the MAGIC telescopes