| Article | |
| Report number | arXiv:2111.15009 |
| Title | Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco |
| Author(s) |
Acciari, V.A. (IAC, La Laguna ; Laguna U., Tenerife) ; Ansoldi, S. (INFN, Udine ; ICRA, Pescara) ; Antonelli, L.A. (INAF, Rome) ; Engels, A. Arbet (Zurich, ETH) ; Artero, M. (Barcelona, IFAE) ; Asano, K. (Kamioka Observ.) ; Baack, D. (Tech. U., Dortmund (main)) ; Babić, A. (Zagreb U.) ; Baquero, A. (HIAST ; Madrid U.) ; de Almeida, U. Barres (Rio de Janeiro, CBPF) ; Barrio, J.A. (HIAST ; Madrid U.) ; Batković, I. (INFN, Padua ; Padua U.) ; González, J. Becerra (IAC, La Laguna ; Laguna U., Tenerife) ; Bednarek, W. (Lodz U.) ; Bellizzi, L. (Siena U. ; INFN, Pisa) ; Bernardini, E. (U. Hamburg, Dept. Phys.) ; Bernardos, M. (INFN, Padua ; Padua U.) ; Berti, A. (Munich, Max Planck Inst.) ; Besenrieder, J. (Munich, Max Planck Inst.) ; Bhattacharyya, W. (U. Hamburg, Dept. Phys.) ; Bigongiari, C. (INAF, Rome) ; Biland, A. (Zurich, ETH) ; Blanch, O. (Barcelona, IFAE) ; Bökenkamp, H. (Tech. U., Dortmund (main)) ; Bonnoli, G. (Siena U. ; INFN, Pisa) ; Bošnjak, Ž. (Zagreb U.) ; Busetto, G. (INFN, Padua ; Padua U.) ; Carosi, R. (INFN, Pisa ; Pisa U.) ; Ceribella, G. (Munich, Max Planck Inst.) ; Cerruti, M. (Barcelona U.) ; Chai, Y. (Munich, Max Planck Inst.) ; Chilingarian, A. (Yerevan Phys. Inst.) ; Cikota, S. (Zagreb U.) ; Colak, S.M. (Barcelona, IFAE) ; Colombo, E. (IAC, La Laguna ; Laguna U., Tenerife) ; Contreras, J.L. (HIAST ; Madrid U.) ; Cortina, J. (Madrid, CIEMAT ; Madrid, Escuela Tec. Sup. Ing. Ind.) ; Covino, S. (INAF, Rome) ; D'Amico, G. (Munich, Max Planck Inst. ; CERN ; DAPNIA, Saclay ; Oslo U.) ; D'Elia, V. (INAF, Rome) ; Da Vela, P. (INFN, Pisa ; Pisa U. ; CERN ; DAPNIA, Saclay ; Oslo U.) ; Dazzi, F. (INAF, Rome) ; De Angelis, A. (INFN, Padua ; Padua U.) ; De Lotto, B. (INFN, Udine) ; Delfino, M. (Barcelona, IFAE ; Barcelona, IEEC) ; Delgado, J. (Barcelona, IFAE ; Barcelona, IEEC) ; Mendez, C. Delgado (Madrid, CIEMAT ; Madrid, Escuela Tec. Sup. Ing. Ind.) ; Depaoli, D. (INFN, Turin ; Turin U.) ; Di Pierro, F. (INFN, Turin ; Turin U.) ; Di Venere, L. (Bari Polytechnic ; INFN, Bari) ; Espiñeira, E. Do Souto (Barcelona, IFAE) ; Prester, D. Dominis (Rijeka U.) ; Donini, A. (INFN, Udine) ; Dorner, D. (Wurzburg U.) ; Doro, M. (INFN, Padua ; Padua U.) ; Elsaesser, D. (Tech. U., Dortmund (main)) ; Ramazani, V. Fallah (Turku U. ; Ruhr U., Bochum (main)) ; Fattorini, A. (Tech. U., Dortmund (main)) ; Fonseca, M.V. (HIAST ; Madrid U.) ; Font, L. (Barcelona, Autonoma U.) ; Fruck, C. (Munich, Max Planck Inst.) ; Fukami, S. (Kamioka Observ.) ; López, R.J. García (IAC, La Laguna ; Laguna U., Tenerife) ; Garczarczyk, M. (U. Hamburg, Dept. Phys.) ; Gasparyan, S. (ICRANet, Yerevan) ; Gaug, M. (Barcelona, Autonoma U.) ; Giglietto, N. (Bari Polytechnic ; INFN, Bari) ; Giordano, F. (Bari Polytechnic ; INFN, Bari) ; Gliwny, P. (Lodz U.) ; Godinović, N. (Split Tech. U.) ; Green, J.G. (INAF, Rome) ; Green, D. (Munich, Max Planck Inst.) ; Hadasch, D. (Kamioka Observ.) ; Hahn, A. (Munich, Max Planck Inst.) ; Heckmann, L. (Munich, Max Planck Inst.) ; Herrera, J. (IAC, La Laguna ; Laguna U., Tenerife) ; Hoang, J. (HIAST ; Madrid U. ; UC, Berkeley) ; Hrupec, D. (Boskovic Inst., Zagreb) ; Hütten, M. (Munich, Max Planck Inst.) ; Inada, T. (Kamioka Observ.) ; Ishio, K. (Munich, Max Planck Inst.) ; Iwamura, Y. (Kamioka Observ.) ; Jiménez, I. (Madrid, CIEMAT ; Madrid, Escuela Tec. Sup. Ing. Ind.) ; Jormanainen, J. (Turku U.) ; Jouvin, L. (Barcelona, IFAE) ; Karjalainen, M. (IAC, La Laguna ; Laguna U., Tenerife) ; Kerszberg, D. (Barcelona, IFAE) ; Kobayashi, Y. (Kamioka Observ.) ; Kubo, H. (Kyoto U.) ; Kushida, J. (Tokai U., Hiratsuka) ; Lamastra, A. (INAF, Rome) ; Lelas, D. (Split Tech. U.) ; Leone, F. (INAF, Rome) ; Lindfors, E. (Turku U.) ; Linhoff, L. (Tech. U., Dortmund (main)) ; Lombardi, S. (INAF, Rome) ; Longo, F. (INFN, Udine ; Trieste U.) ; López-Coto, R. (INFN, Padua ; Padua U.) ; López-Moya, M. (HIAST ; Madrid U.) ; López-Oramas, A. (IAC, La Laguna ; Laguna U., Tenerife) ; Loporchio, S. (Bari Polytechnic ; INFN, Bari) ; Fraga, B. Machado de Oliveira (Rio de Janeiro, CBPF) ; Maggio, C. (Barcelona, Autonoma U.) ; Majumdar, P. (Saha Inst.) ; Makariev, M. (Sofiya, Inst. Nucl. Res.) ; Mallamaci, M. (INFN, Padua ; Padua U.) ; Maneva, G. (Sofiya, Inst. Nucl. Res.) ; Manganaro, M. (Rijeka U.) ; Mannheim, K. (Wurzburg U.) ; Maraschi, L. (INAF, Rome) ; Mariotti, M. (INFN, Padua ; Padua U.) ; Martínez, M. (Barcelona, IFAE) ; Mazin, D. (Kamioka Observ. ; Munich, Max Planck Inst.) ; Menchiari, S. (Siena U. ; INFN, Pisa) ; Mender, S. (Tech. U., Dortmund (main)) ; Mićanović, S. (Rijeka U.) ; Miceli, D. (INFN, Udine ; Annecy, LAPP) ; Miener, T. (HIAST ; Madrid U.) ; Miranda, J.M. (Siena U. ; INFN, Pisa) ; Mirzoyan, R. (Munich, Max Planck Inst.) ; Molina, E. (Barcelona U.) ; Moralejo, A. (Barcelona, IFAE) ; Morcuende, D. (HIAST ; Madrid U.) ; Moreno, V. (Barcelona, Autonoma U.) ; Moretti, E. (Barcelona, IFAE) ; Neustroev, V. (Oulu U. ; Kyoto U.) ; Nigro, C. (Barcelona, IFAE) ; Nilsson, K. (Turku U.) ; Ninci, D. (Barcelona, IFAE) ; Nishijima, K. (Tokai U., Hiratsuka) ; Noda, K. (Kamioka Observ.) ; Nozaki, S. (Kyoto U.) ; Ohtani, Y. (Kamioka Observ.) ; Oka, T. (Kyoto U.) ; Otero-Santos, J. (IAC, La Laguna ; Laguna U., Tenerife) ; Paiano, S. (INAF, Rome) ; Palatiello, M. (INFN, Udine) ; Paneque, D. (Munich, Max Planck Inst.) ; Paoletti, R. (Siena U. ; INFN, Pisa) ; Paredes, J.M. (Barcelona U.) ; Pavletić, L. (Rijeka U.) ; Peñil, P. (HIAST ; Madrid U.) ; Persic, M. (INFN, Udine ; Bologna U.) ; Pihet, M. (Munich, Max Planck Inst.) ; Moroni, P.G. Prada (INFN, Pisa ; Pisa U.) ; Prandini, E. (INFN, Padua ; Padua U.) ; Priyadarshi, C. (Barcelona, IFAE) ; Puljak, I. (Split Tech. U.) ; Rhode, W. (Tech. U., Dortmund (main)) ; Ribó, M. (Barcelona U.) ; Rico, J. (Barcelona, IFAE) ; Righi, C. (INAF, Rome) ; Rugliancich, A. (INFN, Pisa ; Pisa U.) ; Saha, L. (HIAST ; Madrid U.) ; Sahakyan, N. (ICRANet, Yerevan) ; Saito, T. (Kamioka Observ.) ; Sakurai, S. (Kamioka Observ.) ; Satalecka, K. (U. Hamburg, Dept. Phys.) ; Saturni, F.G. (INAF, Rome) ; Schleicher, B. (Wurzburg U.) ; Schmidt, K. (Tech. U., Dortmund (main)) ; Schweizer, T. (Munich, Max Planck Inst.) ; Sitarek, J. (Lodz U.) ; Šnidarić, I. (Boskovic Inst., Zagreb) ; Sobczynska, D. (Lodz U.) ; Spolon, A. (INFN, Padua ; Padua U.) ; Stamerra, A. (INAF, Rome) ; Strišković, J. (Boskovic Inst., Zagreb) ; Strom, D. (Munich, Max Planck Inst.) ; Strzys, M. (Kamioka Observ.) ; Suda, Y. (Hiroshima U.) ; Surić, T. (Boskovic Inst., Zagreb) ; Takahashi, M. (Kamioka Observ.) ; Takeishi, R. (Kamioka Observ.) ; Tavecchio, F. (INAF, Rome) ; Temnikov, P. (Sofiya, Inst. Nucl. Res.) ; Terzić, T. (Rijeka U.) ; Teshima, M. (Munich, Max Planck Inst. ; Kamioka Observ.) ; Tosti, L. (INFN, Perugia) ; Truzzi, S. (Siena U. ; INFN, Pisa) ; Tutone, A. (INAF, Rome) ; Ubach, S. (Barcelona, Autonoma U.) ; van Scherpenberg, J. (Munich, Max Planck Inst.) ; Vanzo, G. (IAC, La Laguna ; Laguna U., Tenerife) ; Acosta, M. Vazquez (IAC, La Laguna ; Laguna U., Tenerife) ; Ventura, S. (Siena U. ; INFN, Pisa) ; Verguilov, V. (Sofiya, Inst. Nucl. Res.) ; Vigorito, C.F. (INFN, Turin ; Turin U.) ; Vitale, V. (INFN, Rome2 ; U. Rome 2, Tor Vergata (main)) ; Vovk, I. (Kamioka Observ.) ; Will, M. (Munich, Max Planck Inst.) ; Wunderlich, C. (Siena U. ; INFN, Pisa) ; Zarić, D. (Split Tech. U.) |
| Publication | 2022-03 |
| Imprint | 2021-11-29 |
| Number of pages | 17 |
| Note | 17 pages, 5 figures |
| In: | Phys. Dark Univ. 35 (2022) 100912 |
| DOI | 10.1016/j.dark.2021.100912 (publication) |
| Subject category | astro-ph.HE ; Astrophysics and Astronomy |
| Accelerator/Facility, Experiment | MAGIC |
| 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 $\langle \sigma_{\mathrm{ann}} v \rangle$ of WIMP annihilation from observations of dSphs. In this work, we report on the analyses of 52.1 h of data of Draco dSph and 49.5 h 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 $\langle \sigma_{\mathrm{ann}} v \rangle$ 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 354.3 h of dSphs good quality data, 95 % CL ULs on $\langle \sigma_{\mathrm{ann}} v \rangle$ have been obtained for 9 annihilation channels. For most of the channels, these results reach values of the order of $10^{-24} $cm$^3$/s at ${\sim}1$ TeV and are the most stringent limits obtained with the MAGIC telescopes so far. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2021-2024 Elsevier B.V. |
Corresponding record in: Inspire
Запись создана 2021-12-02, последняя модификация 2024-11-07
