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Indirect dark matter searches in the dwarf satellite galaxy Ursa Major II with the MAGIC telescopes


(MAGIC Collaboration) Ahnen, M.L.; Ansoldi, S.; Antonelli, L.A.; Arcaro, C.; Baack, D.; Babić, A.; Banerjee, B.; Bangale, P.; de Almeida, U. Barres; Barrio, J.A. et al.
Indirect dark matter searches in the dwarf satellite galaxy Ursa Major II with the MAGIC telescopes // Journal of cosmology and astroparticle physics, 2018 (2018), 03; 009-009 doi:10.1088/1475-7516/2018/03/009 (međunarodna recenzija, članak, znanstveni)


Naslov
Indirect dark matter searches in the dwarf satellite galaxy Ursa Major II with the MAGIC telescopes

Autori
Ahnen, M.L. ; Ansoldi, S. ; Antonelli, L.A. ; Arcaro, C. ; Baack, D. ; Babić, A. ; Banerjee, B. ; Bangale, P. ; de Almeida, U. Barres ; Barrio, J.A. ; González, J. Becerra ; 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. ; Vela, P. Da ; Dazzi, F. ; Angelis, A. De ; Lotto, B. De ; Delfino, M. ; Delgado, J. ; Pierro, F. Di ; Domínguez, A. ; Prester, D. Dominis ; Dorner, D. ; Doro, M. ; Einecke, S. ; Elsaesser, D. ; Ramazani, V. Fallah ; Fernández-Barral, A. ; Fidalgo, D. ; Fonseca, M.V. ; Font, L. ; Fruck, C. ; Galindo, D. ; López, R.J. García ; 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. ; Rosillo, M. Nievas ; Nigro, C. ; Nilsson, K. ; Ninci, D. ; Nishijima, K. ; Noda, K. ; Nogués, L. ; Paiano, S. ; Palacio, J. ; Paneque, D. ; Paoletti, R. ; Paredes, J.M. ; Pedaletti, G. ; Peresano, M. ; Persic, M. ; Moroni, P.G. Prada ; Prandini, E. ; Puljak, I. ; Garcia, J.R. ; Reichardt, I. ; Rhode, W. ; Ribó, M. ; Rico, J. ; Righi, C. ; Rugliancich, A. ; Saito, T. ; Satalecka, K. ; Schweizer, T. ; Sitarek, J. ; Šnidarić, I. ; Sobczynska, D. ; Stamerra, A. ; Strzys, M. ; Surić, T. ; Takahashi, M. ; Takalo, L. ; Tavecchio, F. ; Temnikov, P. ; Terzić, T. ; Teshima, M. ; Torres-Albà, N. ; Treves, A. ; Tsujimoto, S. ; Vanzo, G. ; Acosta, M. Vazquez ; Vovk, I. ; Ward, J.E. ; Will, M. ; Zarić, D.

Kolaboracija
MAGIC Collaboration

Izvornik
Journal of cosmology and astroparticle physics (1475-7516) 2018 (2018), 03; 009-009

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Dark matter ; dwarf spheroidal satellite galaxies ; indirect searches ; Imaging Air Cherenkov Telescopes ; Ursa Major II

Sažetak
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 ∼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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
HRZZ-IP-06-2016-9782

Ustanove
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Fakultet elektrotehnike i računarstva, Zagreb,
Institut "Ruđer Bošković", Zagreb,
Sveučilište u Osijeku - Odjel za fiziku,
Sveučilište u Rijeci - Odjel za fiziku

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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