Bibcode
Barrio, J. A.; Bangale, P.; Barres de Almeida, U.; Banerjee, B.; Baack, D.; Babić, A.; Arcaro, C.; Antonelli, L. A.; Ahnen, M. L.; Ansoldi, S.; Becerra González, J.; Bednarek, W.; Bernardini, E.; Berse, R. Ch.; Berti, A.; Bhattacharyya, W.; Biland, A.; Blanch, O.; Bonnoli, G.; Carosi, R.; Carosi, A.; Ceribella, G.; Chatterjee, A.; Colak, S. M.; Colin, P.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; Cumani, P.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Lotto, B.; Delfino, M.; Delgado, J.; Di Pierro, F.; Domínguez, A.; Dominis Prester, D.; Dorner, D.; Doro, M.; Einecke, S.; Elsaesser, D.; Fallah Ramazani, V.; Fernández-Barral, A.; Fidalgo, D.; Fonseca, M. V.; Font, L.; Fruck, C.; Galindo, D.; García López, R. J.; Garczarczyk, M.; Gaug, M.; Giammaria, P.; Godinović, N.; Gora, D.; Guberman, D.; Hadasch, D.; Hahn, A.; Hassan, T.; Hayashida, M.; Herrera, J.; Hose, J.; Hrupec, D.; Ishio, K.; Konno, Y.; Kubo, H.; Kushida, J.; Kuveždić, D.; Lelas, D.; Lindfors, E.; Lombardi, S.; Longo, F.; López, M.; Maggio, C.; Majumdar, P.; Makariev, M.; Maneva, G.; Manganaro, M.; Mannheim, K.; Maraschi, L.; Mariotti, M.; Martínez, M.; Masuda, S.; Mazin, D.; Mielke, K.; Minev, M.; Miranda, J. M.; Mirzoyan, R.; Moralejo, A.; Moreno, V.; Moretti, E.; Nagayoshi, T.; Neustroev, V.; Niedzwiecki, A.; Nievas Rosillo, M.; Nigro, C.; Nilsson, K.; Ninci, D.; Nishijima, K. et al.
Bibliographical reference
Journal of Cosmology and Astroparticle Physics, Issue 03, article id. 009 (2018).
Advertised on:
3
2018
Citations
37
Refereed citations
29
Description
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 gtrsim 50 GeV) in search for signatures
of DM annihilation in the wide mass range between ~100 GeV and ~100 TeV.
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.
Related projects
Particle Astrophysics
The members of the Particle Astrophysics Group of the IAC participate actively in three large international collaborations of high-energy astrophysics: AMS-02 (Alpha Magnetic Spectrometer), the Cherenkov radiation telescopes MAGIC I and II and the Cherenkov Telescope Array Observatory ( CTAO). We also participate in the ASTRI mini-array, the gamma
Mónica Luisa
Vázquez Acosta