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

2010/01/27 by The Fermi LAT Collaboration, A. A. Abdo, M. Ackermann +170 · 5 citations
Physics and Astronomy · #Annihilation #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #Dark matter #Fermi Gamma-ray Space Telescope #Flux (metallurgy) #Line (geometry) #Monochromatic color #Nuclear physics #Optics #Particle Detector Development and Performance #Particle physics #Photon #Physics #Range (aeronautics) #Spitzer Space Telescope #Telescope #astro-ph.CO #astro-ph.HE #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevlett.104.091302

published as Phys.Rev.Lett.104:091302,2010 · 6 pages, 1 figure. Accepted for publication by The Physical Review Letters

arxiv created 2010/01/27 · openalex publication_date 2010/03/05 · arxiv updated 2012/05/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Dark matter (DM) particle annihilation or decay can produce monochromatic \ensuremathγ rays readily distinguishable from astrophysical sources. \ensuremathγ-ray line limits from 30 to 200 GeV obtained from 11 months of Fermi Large Area Space Telescope data from 20--300 GeV are presented using a selection based on requirements for a \ensuremathγ-ray line analysis, and integrated over most of the sky. We obtain \ensuremathγ-ray line flux upper limits in the range 0.6--4.5\ifmmode×\else\texttimes\fi10^\ensuremath-9 cm^\ensuremath-2 s^\ensuremath-1, and give corresponding DM annihilation cross-section and decay lifetime limits. Theoretical implications are briefly discussed.

Citations

• Gamma Rays from Kaluza-Klein Dark Matter
• Search with EGRET for a gamma ray line from the Galactic center
• An anomalous positron abundance in cosmic rays with energies 1.5–100 GeV
• Measuring Distance and Properties of the Milky Way’s Central Supermassive Black Hole with Stellar Orbits

Cited by

• Fermi LAT search for dark matter in gamma-ray lines and the inclusive photon spectrum
• Low mass gluino within the sparticle landscape, implications for dark matter, and early discovery prospects at LHC-7
• Dark matter and fundamental physics with the Cherenkov Telescope Array
• Complex scalar dark mattervis-à-visCoGeNT, DAMA/LIBRA, and XENON100
• THE FERMI LARGE AREA TELESCOPE ON ORBIT: EVENT CLASSIFICATION, INSTRUMENT RESPONSE FUNCTIONS, AND CALIBRATION