{ "id": "2408.10983", "version": "v1", "published": "2024-08-20T16:22:06.000Z", "updated": "2024-08-20T16:22:06.000Z", "title": "Search for GeV gamma-ray emission from SPT-CL J2012-5649 with six years of DAMPE data", "authors": [ "Siddhant Manna", "Shantanu Desai" ], "comment": "7 pages, 3 figures", "categories": [ "astro-ph.HE", "astro-ph.CO" ], "abstract": "We search for gamma-ray emission from the galaxy cluster SPT-CL J2012-5649 in the energy range from 3 GeV to 1 TeV using the DArk Matter Particle Explorer (DAMPE) telescope. For our analysis, we use three different templates: point source, radial disk and radial Gaussian. We do not detect a signal with significance $>3\\sigma$ for any of these templates at any location with $R_{200}$ of the cluster center. We obtain 95\\% c.l. upper limit on the energy flux between $\\sim 10^{-6}$ and $10^{-4} \\rm{MeV~cm^{-2}~s^{-1}}$ depending on the energy range. These upper limits are consistent with the a non-zero flux detected by Fermi-LAT (at $6\\sigma$ significance) for this cluster. This work represents the first proof of principle search for gamma-ray emission from a single galaxy cluster using DAMPE data.", "revisions": [ { "version": "v1", "updated": "2024-08-20T16:22:06.000Z" } ], "analyses": { "keywords": [ "gev gamma-ray emission", "dampe data", "upper limit", "energy range", "dark matter particle explorer" ], "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable" } } }