Elsevier B.V. : Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco

Acciari, V.A.; Bigongiari, C.; Teshima, M.; Dorner, D.; Sahakyan, N.; Mazin, D.; Kubo, H.; Elsaesser, D.; Paneque, D.; Oka, T.; Verguilov, V.; Puljak, I.; Saturni, F.G.; Barrio, J.A.; Persic, M.; Suda, Y.; Fraga, B. Machado de Oliveira; Bonnoli, G.; Hahn, A.; Doro, M.; Saha, L.; López-Oramas, A.; Temnikov, P.; Carosi, R.; Acosta, M. Vazquez; Maneva, G.; Priyadarshi, C.; Font, L.; Miener, T.; Gasparyan, S.; Giordano, F.; Engels, A. Arbet; Jouvin, L.; Mićanović, S.; D'Elia, V.; Jormanainen, J.; Bošnjak, Ž.; Depaoli, D.; Maraschi, L.; Schmidt, K.; Saito, T.; Moretti, E.; Contreras, J.L.; Karjalainen, M.; Hadasch, D.; Schleicher, B.; Prandini, E.; Bellizzi, L.; Mender, S.; Hoang, J.; Busetto, G.; López-Moya, M.; Fruck, C.; Berti, A.; Mirzoyan, R.; Fonseca, M.V.; Miranda, J.M.; Pihet, M.; Sitarek, J.; Takahashi, M.; Stamerra, A.; Vitale, V.; Paredes, J.M.; Terzić, T.; Batković, I.; Asano, K.; Truzzi, S.; Tosti, L.; Lindfors, E.; Paiano, S.; Satalecka, K.; Prester, D. Dominis; Nigro, C.; Rugliancich, A.; Delfino, M.; Otero-Santos, J.; Hrupec, D.; Mannheim, K.; Di Pierro, F.; Makariev, M.; Rhode, W.; Longo, F.; Besenrieder, J.; De Lotto, B.; Ishio, K.; Schweizer, T.; Molina, E.; Takeishi, R.; Ventura, S.; González, J. Becerra; Spolon, A.; Bhattacharyya, W.; Noda, K.; Bernardos, M.; Lombardi, S.; López-Coto, R.; Miceli, D.; Godinović, N.; Nishijima, K.; Colak, S.M.; Tavecchio, F.; D'Amico, G.; Artero, M.; Zarić, D.; Babić, A.; Di Venere, L.; Da Vela, P.; Majumdar, P.; Garczarczyk, M.; Jiménez, I.; Paoletti, R.; de Almeida, U. Barres; Chilingarian, A.; Gaug, M.; Palatiello, M.; Donini, A.; Antonelli, L.A.; Strom, D.; Leone, F.; Moreno, V.; Mariotti, M.; Cerruti, M.; Loporchio, S.; Heckmann, L.; Ribó, M.; Sakurai, S.; Strzys, M.; Colombo, E.; Fattorini, A.; Bernardini, E.; Righi, C.; Dazzi, F.; Iwamura, Y.; Peñil, P.; Blanch, O.; Vanzo, G.; Martínez, M.; Lamastra, A.; De Angelis, A.; Delgado, J.; van Scherpenberg, J.; Green, D.; Ansoldi, S.; Green, J.G.; Espiñeira, E. Do Souto; Vovk, I.; Pavletić, L.; Hütten, M.; Tutone, A.; Vigorito, C.F.; Strišković, J.; Chai, Y.; Bednarek, W.; Maggio, C.; Neustroev, V.; Šnidarić, I.; Kobayashi, Y.; Mendez, C. Delgado; Rico, J.; Sobczynska, D.; Kerszberg, D.; Biland, A.; Kushida, J.; López, R.J. García; Inada, T.; Covino, S.; Lelas, D.; Nozaki, S.; Ceribella, G.; Moroni, P.G. Prada; Surić, T.; Cortina, J.; Cikota, S.; Ohtani, Y.; Morcuende, D.; Will, M.; Wunderlich, C.; Bökenkamp, H.; Fukami, S.; Linhoff, L.; Herrera, J.; Mallamaci, M.; Menchiari, S.; Baquero, A.; Manganaro, M.; Ramazani, V. Fallah; Baack, D.; Giglietto, N.; Nilsson, K.; Moralejo, A.; Ninci, D.; Gliwny, P.; Ubach, S.

doi:10.1016/j.dark.2021.100912

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.

$Significance skymaps in the Draco (left) and Coma Berenices (right) dSphs field of view, respectively. They have been produced with a test statistic (see Equation~17 of~\cite{1983ApJ272317L}), applied on a smoothed and modelled background estimation. The color scale on the right side of each figure represents the test statistic value distribution. The empty white cross refers to the center of the target, and the orange dashed circle delimits the signal region defined in this analysis, here corresponding to an optimized $\theta^2$ cut of $0.05\,\deg^2$ and $0.03\,\deg^2$ for Draco and Coma Berenices dSphs, respectively (see Section~\ref{sec:likelihood-analysis} for the details on the optimization). The white solid circle on the bottom left corner of each figure shows the MAGIC point spread function.$ $Significance skymaps in the Draco (left) and Coma Berenices (right) dSphs field of view, respectively. They have been produced with a test statistic (see Equation~17 of~\cite{1983ApJ272317L}), applied on a smoothed and modelled background estimation. The color scale on the right side of each figure represents the test statistic value distribution. The empty white cross refers to the center of the target, and the orange dashed circle delimits the signal region defined in this analysis, here corresponding to an optimized $\theta^2$ cut of $0.05\,\deg^2$ and $0.03\,\deg^2$ for Draco and Coma Berenices dSphs, respectively (see Section~\ref{sec:likelihood-analysis} for the details on the optimization). The white solid circle on the bottom left corner of each figure shows the MAGIC point spread function.$ $95\,\% CL ULs for $\langle \sigma_{\mathrm{ann}} v \rangle$ for DM annihilation into $b\bar{b}$, $W^{+}W^{-}$, $\tau^{+}\tau^{-}$ and $\mu^{+}\mu^{-}$ pairs, as representative annihilation channels for both leptonic and hadronic interactions. The black solid line indicates the observed limits obtained for 52.1\,h of Draco dSph observations, while the blue dashed line is the median of the 300 realizations of the null hypothesis. The green and yellow bands represent the two sided 68\,\% and 95\,\% containment bands respectively. The red dashed line shows the thermal relic cross-section~\cite{2012PhRvD..86b3506S}.$ Show more plots

Corresponding record in: Inspire

Back to search

Записът е създаден на 2021-12-02, последна промяна на 2024-11-07

Подобни записи

Пълен текст:

PDF

Добавяне в личната кошница
Export as BibTeX, MARC, MARCXML, DC, EndNote, NLM, RefWorks

CERN Document Server

Access articles, reports and multimedia content in HEP

Main menu

CERN Accelerating science