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Title: Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope

Abstract

The dwarf spheroidal satellite galaxies of the Milky Way are some of the most dark-matter-dominated objects known. Due to their proximity, high dark matter content, and lack of astrophysical backgrounds, dwarf spheroidal galaxies are widely considered to be among the most promising targets for the indirect detection of dark matter via gamma rays. Here we report on gamma-ray observations of 25 Milky Way dwarf spheroidal satellite galaxies based on 4 years of Fermi Large Area Telescope (LAT) data. None of the dwarf galaxies are significantly detected in gamma rays, and we present gamma-ray flux upper limits between 500 MeV and 500 GeV. We determine the dark matter content of 18 dwarf spheroidal galaxies from stellar kinematic data and combine LAT observations of 15 dwarf galaxies to constrain the dark matter annihilation cross section. We set some of the tightest constraints to date on the the annihilation of dark matter particles with masses between 2 GeV and 10 TeV into prototypical Standard Model channels. We find these results to be robust against systematic uncertainties in the LAT instrument performance, diffuse gamma-ray background modeling, and assumed dark matter density profile.

Authors:
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
Fermi-LAT
OSTI Identifier:
1332196
Report Number(s):
arXiv:1310.0828; FERMILAB-PUB-13-683-A
Journal ID: ISSN 2470-0010; 1256578
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 89; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Ackermann, M., and et al. Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope. United States: N. p., 2014. Web. doi:10.1103/PhysRevD.89.042001.
Ackermann, M., & et al. Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope. United States. https://doi.org/10.1103/PhysRevD.89.042001
Ackermann, M., and et al. Tue . "Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope". United States. https://doi.org/10.1103/PhysRevD.89.042001. https://www.osti.gov/servlets/purl/1332196.
@article{osti_1332196,
title = {Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope},
author = {Ackermann, M. and et al.},
abstractNote = {The dwarf spheroidal satellite galaxies of the Milky Way are some of the most dark-matter-dominated objects known. Due to their proximity, high dark matter content, and lack of astrophysical backgrounds, dwarf spheroidal galaxies are widely considered to be among the most promising targets for the indirect detection of dark matter via gamma rays. Here we report on gamma-ray observations of 25 Milky Way dwarf spheroidal satellite galaxies based on 4 years of Fermi Large Area Telescope (LAT) data. None of the dwarf galaxies are significantly detected in gamma rays, and we present gamma-ray flux upper limits between 500 MeV and 500 GeV. We determine the dark matter content of 18 dwarf spheroidal galaxies from stellar kinematic data and combine LAT observations of 15 dwarf galaxies to constrain the dark matter annihilation cross section. We set some of the tightest constraints to date on the the annihilation of dark matter particles with masses between 2 GeV and 10 TeV into prototypical Standard Model channels. We find these results to be robust against systematic uncertainties in the LAT instrument performance, diffuse gamma-ray background modeling, and assumed dark matter density profile.},
doi = {10.1103/PhysRevD.89.042001},
url = {https://www.osti.gov/biblio/1332196}, journal = {Physical Review D},
issn = {2470-0010},
number = ,
volume = 89,
place = {United States},
year = {2014},
month = {2}
}

Works referenced in this record:

Supersymmetric dark matter
journal, March 1996


Non-baryonic dark matter: observational evidence and detection methods
journal, April 2000


Particle dark matter: evidence, candidates and constraints
journal, January 2005


Precise relic WIMP abundance and its impact on searches for dark matter annihilation
journal, July 2012


THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION
journal, May 2009


Origin of the gamma rays from the Galactic Center
journal, December 2011


CONSTRAINTS ON THE GALACTIC HALO DARK MATTER FROM FERMI -LAT DIFFUSE MEASUREMENTS
journal, November 2012


Fermi Large Area Telescope Search for Photon Lines from 30 to 200 GeV and Dark Matter Implications
journal, March 2010


Fermi LAT search for dark matter in gamma-ray lines and the inclusive photon spectrum
journal, July 2012


A tentative gamma-ray line from Dark Matter annihilation at the Fermi Large Area Telescope
journal, August 2012


Search for gamma-ray spectral lines with the Fermi Large Area Telescope and dark matter implications
journal, October 2013


Constraints on cosmological dark matter annihilation from the Fermi-LAT isotropic diffuse gamma-ray measurement
journal, April 2010


Conservative constraints on dark matter from the Fermi-LAT isotropic diffuse gamma-ray background spectrum
journal, November 2010


Constraints on dark matter annihilation in clusters of galaxies with the Fermi large area telescope
journal, May 2010


Dark matter subhaloes as gamma-ray sources and candidates in the first Fermi -LAT catalogue
journal, February 2012


SEARCH FOR DARK MATTER SATELLITES USING FERMI -LAT
journal, February 2012


Unidentified sources in the Fermi-LAT second source catalog: the case for DM subhalos
journal, November 2012


Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope
journal, December 2011


Dark matter line search using a joint analysis of dwarf galaxies with the Fermi Gamma-ray Space Telescope
journal, July 2012


Dwarf Galaxies of the Local Group
journal, September 1998


H i in Local Group Dwarf Galaxies and Stripping by the Galactic halo
journal, April 2009


FERMI LARGE AREA TELESCOPE SECOND SOURCE CATALOG
journal, March 2012


THE FERMI LARGE AREA TELESCOPE ON ORBIT: EVENT CLASSIFICATION, INSTRUMENT RESPONSE FUNCTIONS, AND CALIBRATION
journal, October 2012


THE SPECTRAL ENERGY DISTRIBUTION OF FERMI BRIGHT BLAZARS
journal, May 2010


Approximate Confidence Intervals.II. More than one Unknown Parameter
journal, December 1953


Limits and confidence intervals in the presence of nuisance parameters
journal, October 2005

  • Rolke, Wolfgang A.; López, Angel M.; Conrad, Jan
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 551, Issue 2-3
  • https://doi.org/10.1016/j.nima.2005.05.068

Fitting the gamma-ray spectrum from dark matter with DMFIT: GLAST and the galactic center region
journal, November 2008


PYTHIA 6.4 physics and manual
journal, May 2006


A brief introduction to PYTHIA 8.1
journal, June 2008


Gamma-Ray Constraint on Galactic Positron Production by MeV Dark Matter
journal, May 2005


Dark matter signals from cascade annihilations
journal, May 2009


Internal kinematics and dynamical models of dwarf spheroidal galaxies around the Milky Way
journal, September 2013


A Universal mass Profile for Dwarf Spheroidal Galaxies?
journal, October 2009


Accurate masses for dispersion-supported galaxies: Accurate masses for spheroidal galaxies
journal, May 2010


Indirect Dark Matter detection from Dwarf satellites: joint expectations from astrophysics and supersymmetry
journal, June 2009


Galactic searches for dark matter
journal, October 2013


Variable Stars in the Newly Discovered Milky Way Satellite in Bootes
journal, December 2006


The Kinematics of the Ultra‐faint Milky Way Satellites: Solving the Missing Satellite Problem
journal, November 2007


STELLAR VELOCITIES IN THE CARINA, FORNAX, SCULPTOR, AND SEXTANS dSph GALAXIES: DATA FROM THE MAGELLAN/MMFS SURVEY
journal, January 2009


The Velocity Dispersion Profile of the Remote Dwarf Spheroidal Galaxy Leo I: A Tidal Hit and Run?
journal, March 2008


Stellar Kinematics in the Remote Leo II Dwarf Spheroidal Galaxy--Another Brick in the Wall
journal, June 2007


A Complete Spectroscopic Survey of the Milky way Satellite Segue 1: the Darkest Galaxy
journal, May 2011


Exploring Halo Substructure with Giant Stars: The Velocity Dispersion Profiles of the Ursa Minor and Draco Dwarf Spheroidal Galaxies at Large Angular Separations
journal, September 2005


Willman 1—a Probable Dwarf Galaxy with an Irregular Kinematic Distribution
journal, September 2011


A common mass scale for satellite galaxies of the Milky Way
journal, August 2008


The Aquarius Project: the subhaloes of galactic haloes
journal, December 2008


Dark Matter Substructure and Gamma‐Ray Annihilation in the Milky Way Halo
journal, March 2007


The Luminosity Function of the Milky Way Satellites
journal, October 2008


The Observed Properties of Dark Matter on Small Spatial Scales
journal, July 2007


Kinematics of Milky Way satellites in a Lambda cold dark matter universe: Kinematics of Milky Way satellites
journal, September 2010


A Method for Measuring (Slopes of) the mass Profiles of Dwarf Spheroidal Galaxies
journal, November 2011


A Virial core in the Sculptor Dwarf Spheroidal Galaxy
journal, July 2012


A Universal Density Profile from Hierarchical Clustering
journal, December 1997


The Structure of Dark Matter Halos in Dwarf Galaxies
journal, July 1995


The Most Dark‐Matter–dominated Galaxies: Predicted Gamma‐Ray Signals from the Faintest Milky Way Dwarfs
journal, May 2008


The Likelihood Analysis of EGRET Data
journal, April 1996


On the Distribution of the Likelihood Ratio
journal, September 1954


GIANT GAMMA-RAY BUBBLES FROM FERMI -LAT: ACTIVE GALACTIC NUCLEUS ACTIVITY OR BIPOLAR GALACTIC WIND?
journal, November 2010


Evidence for Gamma-Ray jets in the Milky way
journal, June 2012


Observations of the Sagittarius dwarf galaxy by the HESS experiment and search for a dark matter signal
journal, February 2008


A 2MASS ALL-SKY VIEW OF THE SAGITTARIUS DWARF GALAXY. VII. KINEMATICS OF THE MAIN BODY OF THE SAGITTARIUS dSph
journal, August 2012


Minuit - a system for function minimization and analysis of the parameter errors and correlations
journal, December 1975


FERMI -LAT OBSERVATIONS OF THE DIFFUSE γ-RAY EMISSION: IMPLICATIONS FOR COSMIC RAYS AND THE INTERSTELLAR MEDIUM
journal, April 2012


A New Model for the Loop I (North Polar Spur) Region
journal, July 2007


Turning the Tides on the Ultra-Faint Dwarf Spheroidal Galaxies: coma Berenices and ursa Major ii
journal, May 2010


VERITAS deep observations of the dwarf spheroidal galaxy Segue 1
journal, March 2012


Search for a Dark Matter Annihilation Signal from the Galactic Center Halo with H.E.S.S.
journal, April 2011


Searches for dark matter annihilation signatures in the Segue 1 satellite galaxy with the MAGIC-I telescope
journal, June 2011


The Seventh data Release of the Sloan Digital sky Survey
journal, May 2009


In Pursuit of the Least Luminous Galaxies
journal, January 2010


Pan-STARRS: A Large Synoptic Survey Telescope Array
conference, December 2002


The SkyMapper Telescope and The Southern Sky Survey
journal, January 2007


Hundreds of Milky Way Satellites? Luminosity Bias in the Satellite Luminosity Function
journal, November 2008


HEALPix: A Framework for High‐Resolution Discretization and Fast Analysis of Data Distributed on the Sphere
journal, April 2005


On the Distribution of the Likelihood Ratio
journal, June 1956


The Seventh Data Release of the Sloan Digital Sky Survey
text, January 2009


    Works referencing / citing this record:

    Velocity Dependence from Resonant Self-Interacting Dark Matter
    journal, February 2019


    Global fits of GUT-scale SUSY models with GAMBIT
    journal, December 2017


    Scaling relations for dark matter annihilation and decay profiles in dwarf spheroidal galaxies
    journal, October 2018


    Searching for dark matter at hadron colliders
    journal, September 2014


    Phenomenological signatures of mixed complex scalar WIMP dark matter
    journal, April 2017


    Fermi -LAT Stacking Analysis Technique: An Application to Extreme Blazars and Prospects for their CTA Detection
    journal, August 2019


    Dirac-fermionic dark matter in U(1)X models
    journal, October 2015


    Search for Cosmic-Ray-Induced Gamma-Ray Emission in Galaxy Clusters
    journal, April 2014


    Dark stars: a review
    journal, May 2016


    Minimal semi-annihilating ℤ N scalar dark matter
    journal, June 2014


    Fermi-LAT kills dark matter interpretations of AMS-02 data. Or not?
    journal, January 2017


    Gamma-rays from possible disk component of dark matter
    journal, January 2017


    The effect of tides on the Fornax dwarf spheroidal galaxy
    journal, October 2015


    Scaling relations for dark matter annihilation and decay profiles in dwarf spheroidal galaxies
    journal, October 2018


    Asymptotically safe dark matter
    journal, August 2015


    Minimal renormalizable simplified dark matter model with a pseudoscalar mediator
    journal, April 2017


    Dark matter annihilation into four-body final states and implications for the AMS antiproton excess
    journal, January 2018


    Velocity Dependence from Resonant Self-Interacting Dark Matter
    journal, February 2019


    Is it possible to discover a dark matter particle with an accelerator?
    journal, September 2016


    Global fits of GUT-scale SUSY models with GAMBIT
    journal, December 2017


    Searching for dark matter at hadron colliders
    journal, September 2014


    Phenomenological signatures of mixed complex scalar WIMP dark matter
    journal, April 2017


    Fermi -LAT Stacking Analysis Technique: An Application to Extreme Blazars and Prospects for their CTA Detection
    journal, August 2019


    Interpreting the galactic center gamma-ray excess in the NMSSM
    journal, October 2015


    Singlet-Doublet model: dark matter searches and LHC constraints
    journal, October 2015


    A new look at the cosmic ray positron fraction
    journal, February 2015


    CONFRONTING GALACTIC AND EXTRAGALACTIC γ -RAYS OBSERVED BY FERMI -LAT WITH ANNIHILATING DARK MATTER IN AN INERT HIGGS DOUBLET MODEL
    journal, August 2015


    Z-portal dark matter
    journal, March 2015


    Background model systematics for the Fermi GeV excess
    journal, March 2015


    A realistic assessment of the CTA sensitivity to dark matter annihilation
    journal, March 2015


    No WIMP mini-spikes in dwarf spheroidal galaxies
    journal, April 2015


    Limits on dark matter annihilation signals from the Fermi LAT 4-year measurement of the isotropic gamma-ray background
    journal, September 2015


    Model-independent indirect detection constraints on hidden sector dark matter
    journal, June 2016


    Isospin-violating dark-matter-nucleon scattering via two-Higgs-doublet-model portals
    journal, October 2016


    Probing dark matter annihilation in the Galaxy with antiprotons and gamma rays
    journal, October 2017


    Searching for dark matter annihilation from individual halos: uncertainties, scatter and signal-to-noise ratios
    journal, August 2018


    Dark matter constraints from dwarf galaxies: a data-driven analysis
    journal, October 2018


    Constraints on dark matter annihilation and decay from the isotropic gamma-ray background
    journal, April 2017


    Spherical Jeans analysis for dark matter indirect detection in dwarf spheroidal galaxies - impact of physical parameters and triaxiality
    journal, November 2014


    Dark matter annihilation and decay from non-spherical dark halos in galactic dwarf satellites
    journal, June 2016


    Baryonic impact on the dark matter distribution in Milky Way-sized galaxies and their satellites
    journal, February 2016


    Dark matter annihilation feedback in cosmological simulations – I: Code convergence and idealized haloes
    journal, August 2017


    Multi-component dark matter in a non-Abelian dark sector
    journal, July 2019


    Search for dark matter cosmic-ray electrons and positrons from the Sun with the Fermi Large Area Telescope
    journal, January 2020


    Cross correlation of cosmic shear and extragalactic gamma-ray background: Constraints on the dark matter annihilation cross section
    journal, September 2014


    Complementarity of dark matter searches in the phenomenological MSSM
    journal, March 2015


    Improving the sensitivity of gamma-ray telescopes to dark matter annihilation in dwarf spheroidal galaxies
    journal, March 2015


    Comprehensive search for dark matter annihilation in dwarf galaxies
    journal, April 2015


    SUSY implications from WIMP annihilation into scalars at the Galactic Center
    journal, May 2015


    Indirect detection constraints on s- and t-channel simplified models of dark matter
    journal, September 2016


    Direct Detection Phenomenology in Models Where the Products of Dark Matter Annihilation Interact with Nuclei
    journal, June 2015


    Indication of Gamma-Ray Emission from the Newly Discovered Dwarf Galaxy Reticulum II
    journal, August 2015


    Strong Constraints on Self-Interacting Dark Matter with Light Mediators
    journal, April 2017


    The dark side of cosmology: Dark matter and dark energy
    journal, March 2015


    Wimp searches with gamma rays in the Fermi era: Challenges, methods and results
    journal, December 2015


    Decaying Dark Atom Constituents and Cosmic Positron Excess
    journal, January 2014


    Asymmetric dark matter: residual annihilations and self-interactions
    text, January 2018


    Dark Matter Limits from Dwarf Spheroidal Galaxies with the HAWC Gamma-Ray Observatory
    journal, February 2018


    Ships Passing in the Night: Spectroscopic Analysis of Two Ultra-faint Satellites in the Constellation Carina
    journal, April 2018