Abstract
Most of the matter in the universe is invisible and is known as dark matter (DM). Weakly Interacting Massive Particles (WIMPs) are possible theoretical candidates for DM. Hypothetically, WIMPs can be detected indirectly by their annihilation or decay products. A possible product is a γ ray. Many DM profile models predict a higher density of WIMPs near the Galactic center. Here we search for monochromatic γ-ray emission from the Galactic center region in data from the Large Area Telescope (LAT), the main instrument onboard the Fermi Gamma-ray Space Telescope. We present the preliminary results of the analysis of γ-ray spectral lines to search for DM annihilation and decay signals using the latest version of the LAT data.
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