%0 Journal Article
%A Contreras González, José Luis
%A Domínguez, A.
%A Fonseca González, María Victoria
%A López Moya, Marcos
%T Indirect dark matter searches in the dwarf satellite galaxy Ursa Major II with the MAGIC telescopes
%D 2018
%@ 1475-7516
%U https://hdl.handle.net/20.500.14352/12135
%X The dwarf spheroidal galaxy Ursa Major II (UMaII) is believed to be one of the most dark-matter dominated systems among the Milky Way satellites and represents a suitable target for indirect dark matter (DM) searches. The MAGIC telescopes carried out a deep observation campaign on UMaII between 2014 and 2016, collecting almost one hundred hours of good-quality data. This campaign enlarges the pool of DM targets observed at very high energy (E ˃∼ 50 GeV) in search for signatures of DM annihilation in the wide mass range between ∼ to 100 GeV and ∼ to 100TeV. To this end, the data are analyzed with the full likelihood analysis, a method based on the exploitation of the spectral information of the recorded events for an optimal sensitivity to the explored DM models. We obtain constraints on the annihilation cross-section for different channels that are among the most robust and stringent achieved so far at the TeV mass scale from observations of dwarf satellite galaxies.
%~