2026-04-18T00:27:22Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1421232025-12-05T16:47:09Zcom_2072_1057col_2072_478823col_2072_478904col_2072_478917

Limits to dark matter annihilation cross-section from a combined analysis of MAGIC and Fermi-LAT observations of dwarf satellite galaxies Galindo Fernández, Daniel Marcote Martin, Benito Paredes i Poy, Josep Maria Paredes Fortuny, Xavier Ribó Gomis, Marc MAGIC Collaboration Matèria fosca (Astronomia) Galàxies Dark matter (Astronomy) Galaxies We present the first joint analysis of gamma-ray data from the MAGIC Cherenkov telescopes and the Fermi Large Area Telescope (LAT) to search for gamma-ray signals from dark matter annihilation in dwarf satellite galaxies. We combine 158 hours of Segue 1 observations with MAGIC with 6-year observations of 15 dwarf satellite galaxies by the Fermi-LAT. We obtain limits on the annihilation cross-section for dark matter particle masses between 10 GeV and 100 TeV the widest mass range ever explored by a single gamma-ray analysis. These limits improve on previously published Fermi-LAT and MAGIC results by up to a factor of two at certain masses. Our new inclusive analysis approach is completely generic and can be used to perform a global, sensitivity-optimized dark matter search by combining data from present and future gamma-ray and neutrino detectors. 2019-10-10T11:54:32Z 2019-10-10T11:54:32Z 2016-02-16 2019-10-10T11:54:32Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1475-7516 https://hdl.handle.net/2445/142123 677884 eng Reproducció del document publicat a: https://doi.org/10.1088/1475-7516/2016/02/039 Journal of Cosmology and Astroparticle Physics, 2016, vol. 2016 https://doi.org/10.1088/1475-7516/2016/02/039 cc-by (c) Galindo Fernández, Daniel et al., 2016 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess 20 p. application/pdf Institute of Physics (IOP) Articles publicats en revistes (Física Quàntica i Astrofísica)