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

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, MA...

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Published in:arXiv.org 2021-11
Main Authors: Antonelli, L A, Engels, A Arbet, Artero, M, Asano, K, Baack, D, Batković, I, Bellizzi, L, Bernardini, E, Berti, A, Bonnoli, G, Busetto, G, Ceribella, G, Chai, Y, Contreras, J L, Covino, S, D'Amico, G, D'Elia, V, Da Vela, P, Dazzi, F, De Angelis, A, Delgado, J, F Di Pierro, L Di Venere, E Do Souto Espiñeira, Dorner, D, Doro, M, V Fallah Ramazani, Fattorini, A, Fruck, C, Fukami, S, Gaug, M, Giglietto, N, Gliwny, P, Godinović, N, Herrera, J, Hoang, J, Hrupec, D, Hütten, M, Inada, T, Ishio, K, Iwamura, Y, Jiménez, I, Jouvin, L, Kerszberg, D, Kobayashi, Y, Lamastra, A, Lelas, D, Lombardi, S, Longo, F, López-Coto, R, López-Moya, M, López-Oramas, A, Maggio, C, Majumdar, P, Makariev, M, Mallamaci, M, Maraschi, L, Menchiari, S, Mender, S, Miceli, D, Miener, T, Miranda, J M, Moralejo, A, Moretti, E, Nilsson, K, Ninci, D, Nishijima, K, Noda, K, Ohtani, Y, Otero-Santos, J, Paredes, J M, Pavletić, L, Prandini, E, Priyadarshi, C, Puljak, I, Saha, L, Sahakyan, N, Satalecka, K, Saturni, F G, Schleicher, B, Schmidt, K, Sitarek, J, Sobczynska, D, Spolon, A, Stamerra, A, Strom, D, Suda, Y, Takahashi, M, Takeishi, R, Tavecchio, F, Teshima, M, Truzzi, S, Tutone, A, Ubach, S, J van Scherpenberg, Vanzo, G, M Vazquez Acosta, Ventura, S, Vitale, V, Zarić, D
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container_title arXiv.org
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creator Antonelli, L A
Engels, A Arbet
Artero, M
Asano, K
Baack, D
Batković, I
Bellizzi, L
Bernardini, E
Berti, A
Bonnoli, G
Busetto, G
Ceribella, G
Chai, Y
Contreras, J L
Covino, S
D'Amico, G
D'Elia, V
Da Vela, P
Dazzi, F
De Angelis, A
Delgado, J
F Di Pierro
L Di Venere
E Do Souto Espiñeira
Dorner, D
Doro, M
V Fallah Ramazani
Fattorini, A
Fruck, C
Fukami, S
Gaug, M
Giglietto, N
Gliwny, P
Godinović, N
Herrera, J
Hoang, J
Hrupec, D
Hütten, M
Inada, T
Ishio, K
Iwamura, Y
Jiménez, I
Jouvin, L
Kerszberg, D
Kobayashi, Y
Lamastra, A
Lelas, D
Lombardi, S
Longo, F
López-Coto, R
López-Moya, M
López-Oramas, A
Maggio, C
Majumdar, P
Makariev, M
Mallamaci, M
Maraschi, L
Menchiari, S
Mender, S
Miceli, D
Miener, T
Miranda, J M
Moralejo, A
Moretti, E
Nilsson, K
Ninci, D
Nishijima, K
Noda, K
Ohtani, Y
Otero-Santos, J
Paredes, J M
Pavletić, L
Prandini, E
Priyadarshi, C
Puljak, I
Saha, L
Sahakyan, N
Satalecka, K
Saturni, F G
Schleicher, B
Schmidt, K
Sitarek, J
Sobczynska, D
Spolon, A
Stamerra, A
Strom, D
Suda, Y
Takahashi, M
Takeishi, R
Tavecchio, F
Teshima, M
Truzzi, S
Tutone, A
Ubach, S
J van Scherpenberg
Vanzo, G
M Vazquez Acosta
Ventura, S
Vitale, V
Zarić, D
description 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.
doi_str_mv 10.48550/arxiv.2111.15009
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V</creatorcontrib><creatorcontrib>Zarić, D</creatorcontrib><title>Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco</title><title>arXiv.org</title><description>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.</description><subject>Channels</subject><subject>Dark matter</subject><subject>Dwarf galaxies</subject><subject>Gamma rays</subject><subject>Searching</subject><subject>Spheroidal galaxies</subject><subject>Telescopes</subject><subject>Weakly interacting massive 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arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20211129</creationdate><title>Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco</title><author>Antonelli, L A ; Engels, A Arbet ; Artero, M ; Asano, K ; Baack, D ; Batković, I ; Bellizzi, L ; Bernardini, E ; Berti, A ; Bonnoli, G ; Busetto, G ; Ceribella, G ; Chai, Y ; Contreras, J L ; Covino, S ; D'Amico, G ; D'Elia, V ; Da Vela, P ; Dazzi, F ; De Angelis, A ; Delgado, J ; F Di Pierro ; L Di Venere ; E Do Souto Espiñeira ; Dorner, D ; Doro, M ; V Fallah Ramazani ; Fattorini, A ; Fruck, C ; Fukami, S ; Gaug, M ; Giglietto, N ; Gliwny, P ; Godinović, N ; Herrera, J ; Hoang, J ; Hrupec, D ; Hütten, M ; Inada, T ; Ishio, K ; Iwamura, Y ; Jiménez, I ; Jouvin, L ; Kerszberg, D ; Kobayashi, Y ; Lamastra, A ; Lelas, D ; Lombardi, S ; Longo, F ; López-Coto, R ; López-Moya, M ; López-Oramas, A ; Maggio, C ; Majumdar, P ; Makariev, M ; Mallamaci, M ; Maraschi, L ; Menchiari, S ; Mender, S ; Miceli, D ; Miener, T ; Miranda, J M ; Moralejo, A ; Moretti, E ; Nilsson, K ; Ninci, D ; Nishijima, K ; Noda, K ; Ohtani, Y ; Otero-Santos, J ; Paredes, J M ; Pavletić, L ; Prandini, E ; Priyadarshi, C ; Puljak, I ; Saha, L ; Sahakyan, N ; Satalecka, K ; Saturni, F G ; Schleicher, B ; Schmidt, K ; Sitarek, J ; Sobczynska, D ; Spolon, A ; Stamerra, A ; Strom, D ; Suda, Y ; Takahashi, M ; Takeishi, R ; Tavecchio, F ; Teshima, M ; Truzzi, S ; Tutone, A ; Ubach, S ; J van Scherpenberg ; Vanzo, G ; M Vazquez Acosta ; Ventura, S ; Vitale, V ; Zarić, 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Central China</collection><collection>Engineering Collection</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Antonelli, L A</au><au>Engels, A Arbet</au><au>Artero, M</au><au>Asano, K</au><au>Baack, D</au><au>Batković, I</au><au>Bellizzi, L</au><au>Bernardini, E</au><au>Berti, A</au><au>Bonnoli, G</au><au>Busetto, G</au><au>Ceribella, G</au><au>Chai, Y</au><au>Contreras, J L</au><au>Covino, S</au><au>D'Amico, G</au><au>D'Elia, V</au><au>Da Vela, P</au><au>Dazzi, F</au><au>De Angelis, A</au><au>Delgado, J</au><au>F Di Pierro</au><au>L Di Venere</au><au>E Do Souto Espiñeira</au><au>Dorner, D</au><au>Doro, M</au><au>V Fallah Ramazani</au><au>Fattorini, A</au><au>Fruck, C</au><au>Fukami, S</au><au>Gaug, M</au><au>Giglietto, N</au><au>Gliwny, P</au><au>Godinović, N</au><au>Herrera, J</au><au>Hoang, J</au><au>Hrupec, D</au><au>Hütten, M</au><au>Inada, T</au><au>Ishio, K</au><au>Iwamura, Y</au><au>Jiménez, I</au><au>Jouvin, L</au><au>Kerszberg, D</au><au>Kobayashi, Y</au><au>Lamastra, A</au><au>Lelas, D</au><au>Lombardi, S</au><au>Longo, F</au><au>López-Coto, R</au><au>López-Moya, M</au><au>López-Oramas, A</au><au>Maggio, C</au><au>Majumdar, P</au><au>Makariev, M</au><au>Mallamaci, M</au><au>Maraschi, L</au><au>Menchiari, S</au><au>Mender, S</au><au>Miceli, D</au><au>Miener, T</au><au>Miranda, J M</au><au>Moralejo, A</au><au>Moretti, E</au><au>Nilsson, K</au><au>Ninci, D</au><au>Nishijima, K</au><au>Noda, K</au><au>Ohtani, Y</au><au>Otero-Santos, J</au><au>Paredes, J M</au><au>Pavletić, L</au><au>Prandini, E</au><au>Priyadarshi, C</au><au>Puljak, I</au><au>Saha, L</au><au>Sahakyan, N</au><au>Satalecka, K</au><au>Saturni, F G</au><au>Schleicher, B</au><au>Schmidt, K</au><au>Sitarek, J</au><au>Sobczynska, D</au><au>Spolon, A</au><au>Stamerra, A</au><au>Strom, D</au><au>Suda, Y</au><au>Takahashi, M</au><au>Takeishi, R</au><au>Tavecchio, F</au><au>Teshima, M</au><au>Truzzi, S</au><au>Tutone, A</au><au>Ubach, S</au><au>J van Scherpenberg</au><au>Vanzo, G</au><au>M Vazquez Acosta</au><au>Ventura, S</au><au>Vitale, V</au><au>Zarić, D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco</atitle><jtitle>arXiv.org</jtitle><date>2021-11-29</date><risdate>2021</risdate><eissn>2331-8422</eissn><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.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.2111.15009</doi><oa>free_for_read</oa></addata></record>
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subjects Channels
Dark matter
Dwarf galaxies
Gamma rays
Searching
Spheroidal galaxies
Telescopes
Weakly interacting massive particles
title Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco
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