Confronting various dark matter scenarios with dwarf spheroidal gamma-ray observations

Journal Article · Tue Jun 21 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4953272· OSTI ID:22609063

Ghosh, Tathagata ^[1]

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1. Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843-4242 (United States)

Dwarf spheroidal galaxies are promising targets for the indirect detection of dark matter through gamma-ray emission due to their proximity, lack of astrophysical backgrounds and high dark matter density. They are often used to place restrictive bounds on the dark matter annihilation cross section. In this report, we analyze six years of Fermi-LAT gamma-ray data from Dwarf Spheroidal galaxies that are satellites of the Milky Way, and constrain the parameter space that explain the Fermi-LAT Galactic center gamma-ray emission in 4 body final states, neutralino dark matter annihilation cross-section, and decaying dark matter lifetime for several decay channels.

• OSTI ID: 22609063
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1743; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ANNIHILATION
ASTROPHYSICS
COSMIC GAMMA SOURCES
CROSS SECTIONS
DECAY
DENSITY
DETECTION
DWARF STARS
EMISSION
GAMMA RADIATION
LIFETIME
MILKY WAY
NEUTRALINOS
NONLUMINOUS MATTER
SPACE