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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/31959
Title: Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco
Authors: Acciari, V. A.
Ansoldi, S.
ANTONELLI, Lucio Angelo 
Arbet Engels, A.
Artero, M.
Asano, K.
Baack, D.
Babić, A.
Baquero, A.
Barres de Almeida, U.
Barrio, J. A.
Loporchio, S.
Machado de Oliveira Fraga, B.
Maggio, C.
Majumdar, P.
Makariev, M.
Mallamaci, M.
Maneva, G.
Manganaro, M.
Mannheim, K.
Maraschi, L.
Batković, I.
Mariotti, M.
Martínez, M.
Mazin, D.
Menchiari, S.
Mender, S.
Mićanović, S.
Miceli, D.
Miener, T.
Miranda, J. M.
Mirzoyan, R.
Becerra González, J.
Molina, E.
Moralejo, A.
Morcuende, D.
Moreno, V.
Moretti, E.
Neustroev, V.
Nigro, C.
Nilsson, K.
Ninci, D.
Nishijima, K.
Bednarek, W.
Noda, K.
Nozaki, S.
Ohtani, Y.
Oka, T.
Otero-Santos, J.
PAIANO, Simona 
Palatiello, M.
Paneque, D.
Paoletti, R.
Paredes, J. M.
Bellizzi, L.
Pavletić, L.
Penil, P.
PERSIC, Massimo 
Pihet, M.
Prada Moroni, P. G.
PRANDINI, ELISA 
Priyadarshi, C.
Puljak, I.
Rhode, W.
Ribó, M.
Bernardini, E.
Rico, J.
Righi, Chiara 
Rugliancich, A.
Saha, L.
Sahakyan, N.
Saito, T.
Sakurai, S.
Satalecka, K.
SATURNI, FRANCESCO GABRIELE 
Schleicher, B.
Bernardos, M.
Schmidt, K.
Schweizer, T.
Sitarek, J.
Šnidarić, I.
Soboczynska, D.
SPOLON, ALESSIA 
STAMERRA, Antonio 
Strišković, J.
Strom, D.
Strzys, M.
Berti, A.
Suda, Y.
Surić, T.
Takahashi, M.
Takeishi, R.
TAVECCHIO, Fabrizio 
Temnikov, P.
Terzić, T.
Teshima, M.
Tosti, L.
Truzzi, S.
Besenrieder, J.
TUTONE, ANTONIO 
Ubach, S.
van Scherpenberg, J.
Vanzo, G.
Vázquez Acosta, M.
Ventura, S.
Verguilov, V.
Vigorito, C. F.
Vitale, V.
Vovk, I.
Bhattacharyya, W.
Will, M.
Wunderlich, C.
Zarić, D.
BIGONGIARI, Ciro 
Biland, A.
Blanch, O.
Bökenkamp, H.
Bonnoli, G.
Bošnjak
Busetto, G.
Carosi, R.
Ceribella, G.
Cerruti, M.
Chai, Y.
Chilingarian, A.
Cikota, S.
Colak, S. M.
Colombo, E.
Contreras, J. L.
Cortina, J.
COVINO, Stefano 
D'Amico, G.
D'Elia, V.
Da Vela, P.
Dazzi, F.
De Angelis, A.
De Lotto, B.
Delfino, M.
Delgado, J.
Delgado Mendez, C.
Depaoli, D.
Di Pierro, F.
Di Venere, L.
Do Souto Espiñeira, E.
Dominis Prester, D.
Donini, A.
Dorner, D.
Doro, M.
Elsaesser, D.
Fallah Ramazani, V.
Fattorini, A.
Fonseca, M. V.
Font, L.
Fruck, C.
Fukami, S.
García López, R. J.
Garczarczyk, M.
Gasparyan, S.
Gaug, M.
Giglietto, N.
Giordano, F.
Gliwny, P.
Godinović, N.
GREEN, JARRED GERSHON 
Green, D.
Hadasch, D.
Hahn, A.
Heckmann, L.
Herrera, J.
Hoang, J.
Hrupec, D.
Hütten, M.
Inada, T.
Ishio, K.
Iwamura, Y.
Jiménez, I.
Jormanainen, J.
Jouvin, L.
Karjalainen, M.
Kerszberg, D.
Kobayashi, Y.
Kubo, H.
Kushida, J.
LAMASTRA, Alessandra 
Lelas, D.
LEONE, FRANCESCO 
Lindfors, E.
Linhoff, L.
LOMBARDI, Saverio 
Longo, F.
López-Coto, R.
López-Moya, M.
López-Oramas, A.
Issue Date: 2022
Journal: PHYSICS OF THE DARK UNIVERSE 
Number: 35
First Page: 100912
Abstract: Milky Way dwarf spheroidal galaxies (dSphs) are among the best candidates to search for signals of dark matter annihilation with Imaging Atmospheric Cherenkov Telescopes, given their high mass-to-light ratios and the fact that they are free of astrophysical gamma-ray emitting sources. Since 2011, MAGIC has performed a multi-year observation program in search for Weakly Interacting Massive Particles (WIMPs) in dSphs. Results on the observations of Segue 1 and Ursa Major II dSphs have already been published and include some of the most stringent upper limits (ULs) on the velocity-averaged cross-section 〈σannv〉 of WIMP annihilation from observations of dSphs. In this work, we report on the analyses of 52.1h of data of Draco dSph and 49.5h of Coma Berenices dSph observed with the MAGIC telescopes in 2018 and in 2019 respectively. No hint of a signal has been detected from either of these targets and new constraints on the 〈σannv〉 of WIMP candidates have been derived. In order to improve the sensitivity of the search and reduce the effect of the systematic uncertainties due to the J-factor estimates, we have combined the data of all dSphs observed with the MAGIC telescopes. Using 354.3h of dSphs good quality data, 95% CL ULs on 〈σannv〉 have been obtained for 9 annihilation channels. For most of the channels, these results reach values of the order of 10−24cm3/s at ∼1TeV and are the most stringent limits obtained with the MAGIC telescopes so far.
URI: http://hdl.handle.net/20.500.12386/31959
URL: https://api.elsevier.com/content/abstract/scopus_id/85125423918
https://www.sciencedirect.com/science/article/pii/S2212686421001370?via%3Dihub
ISSN: 2212-6864
DOI: 10.1016/j.dark.2021.100912
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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