Journal
PHYSICAL REVIEW D
Volume 91, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.91.122002
Keywords
-
Funding
- Royal Swedish Academy of Sciences through the K. A. Wallenberg Foundation
- NASA postdoctoral fellowship
- Marie Curie International Outgoing Fellowship for Career Development through the FP7 Programme [257861]
- Italian Ministry of Education, University and Research (MIUR) [FIRB-2012-RBFR12PM1F]
- ICREA Funding Source: Custom
- Grants-in-Aid for Scientific Research [15H02086] Funding Source: KAKEN
Ask authors/readers for more resources
Dark matter in the Milky Way may annihilate directly into. rays, producing a monoenergetic spectral line. Therefore, detecting such a signature would be strong evidence for dark matter annihilation or decay. We search for spectral lines in the Fermi Large Area Telescope observations of the Milky Way halo in the energy range 200 MeV-500 GeV using analysis methods from our most recent line searches. The main improvements relative to previous works are our use of 5.8 years of data reprocessed with the Pass 8 event-level analysis and the additional data resulting from the modified observing strategy designed to increase exposure of the Galactic center region. We search in five sky regions selected to optimize sensitivity to different theoretically motivated dark matter scenarios and find no significant detections. In addition to presenting the results from our search for lines, we also investigate the previously reported tentative detection of a line at 133 GeV using the new Pass 8 data.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available