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51. Resolving the origin of very-high-energy gamma-ray emission from the PeVatron candidate SNR G106.3+2.7 using MAGIC telescopes

Author

M. I. Martínez, Giacomo D'Amico, Manuel Artero, Christian Fruck, Manuel Delfino, Ulisses Barres de Almeida, Jarred Gershon Green, Jordi Delgado, Tomislav Terzić, Lluis Font, Marcos López-Moya, Wlodek Bednarek, Federico Di Pierro, Ana Babić, Ruben Lopez-Coto, Lena Linhoff, Marcel Strzys, Kevin Schmidt, Irene Jiménez Martínez, Davide Depaoli, Sargis Gasparyan, Simone Mender, Javier Herrera, Jose Miguel Miranda, Javier Rico, Tokonatsu Yamamoto, Vitaly Neustroev, Daniel Kerszberg, Juan Abel Barrio, Lorenzo Bellizzi, Luca Tosti, Wolfgang Rhode, Junko Kushida, Giovanni Busetto, Paolo Da Vela, Lovro Pavletić, Narek Sahakyan, Serena Loporchio, Takeshi Nakamori, Francesco Longo, Barbara De Lotto, Abelardo Moralejo, Manuela Mallamaci, Leonardo Di Venere, Valerio D'Elia, Alessandro De Angelis, David H. Green, Camilla Maggio, Marina Manganaro, Jürgen Besenrieder, Stefano Truzzi, G. Maneva, Carlos Delgado Mendez, Pablo Peñil, Francesco Giordano, Antonio Tutone, Adrian Biland, Alexander Hahn, L. Maraschi, Elina Lindfors, Wrijupan Bhattacharyya, Daniel Mazin, Elia Do Souto Espiñeira, Elena Moretti, Yuki Iwamura, Stefano Covino, Saša Mićanović, Thomas Schweizer, Stefano Menchiari, Daniela Dorner, Giovanni Ceribella, Gaia Vanzo, Marine Pihet, Konstancja Satalecka, Stefano Ansoldi, Marc Ribó, Michele Doro, Ivana Batković, Riccardo Paoletti, Martin Makariev, Chiara Righi, Ryuji Takeishi, D. M. Strom, Kari Nilsson, Yating Chai, Oscar Blanch, Markus Gaug, Stefan Cikota, Maria-Isabel Bernardos, Michele Palatiello, Tomohiko Oka, Alice Donini, Petar Temnikov, Mosè Mariotti, Koji Noda, Pratik Majumdar, Elisa Bernardini, Marie Karjalainen, Yusuke Suda, Takashi Saito, D. Dominis Prester, Pawel Gliwny, Nicola Giglietto, Cosimo Nigro, Kyoshi Nishijima, Hidetoshi Kubo, Tomohiro Inada, Bernd Schleicher, Iva Šnidarić, Markus Garczarczyk, Martin Will, Vandad Fallah Ramazani, Simona Paiano, Josep M. Paredes, Jenni Jormanainen, Carlo Vigorito, Dominik Baack, Lara Nava, Alessandra Lamastra, Chaitanya Priyadarshi, Edgar Molina, Vincenzo Vitale, Antonio Stamerra, Yukiho Kobayashi, Jorge Otero-Santos, Fabrizio Tavecchio, Louis Antonelli, Josefa González, Bernardo Machado de Oliveira Fraga, Alicia Fattorini, Sofia Ventura, Eduardo Colombo, Victoria Moreno, Satoshi Fukami, Massimo Persic, Darko Zarić, Seiya Nozaki, Daniel Morcuende, Jose Luis Contreras, Carolin Wunderlich, Francesco Leone, Juan Cortina, Masahiro Teshima, Tihomir Surić, Saverio Lombardi, Hendrik Bökenkamp, Tjark Miener, David Paneque, Ciro Bigongiari, Jelena Strišković, Andrea Rugliancich, Ivica Puljak, Santiago Ubach, Karl Mannheim, Victor A. Acciari, Giacomo Bonnoli, Alicia López-Oramas, Dario Hrupec, Sidika Merve Colak, Monica Vazquez Acosta, P. G. Prada Moroni, Moritz Hütten, Roberto Carosi, Shunsuke Sakurai, Mitsunari Takahashi, Alessio Berti, Kazuma Ishio, Andrés Baquero, Ramon J. García López, John Hoang, Davide Miceli, Axel Arbet Engels, Elisa Prandini, Alessia Spolon, Léa Jouvin, Dominik Elsaesser, Razmik Mirzoyan, Juliane van Scherpenberg, Ashot Chilingarian, Damir Lelas, Vassil Verguilov, Lea Heckmann, Francesco Gabriele Saturni, Dorota Sobczyńska, Zeljka Bosnjak, Katsuaki Asano, Maria Victoria Fonseca, Francesco Dazzi, Ievgen Vovk, Nikola Godinovic, Matteo Cerruti, Yasushi Fukazawa, Julian Sitarek, Daniela Hadasch, and Yoshiki Ohtani

Subjects
Physics, Air shower, Pulsar, Astrophysics::High Energy Astrophysical Phenomena, Continuum (design consultancy), Gamma ray, Angular resolution, Astrophysics::Cosmology and Extragalactic Astrophysics, MAGIC (telescope), Astrophysics, Supernova remnant, Pulsar wind nebula, Astrophysics::Galaxy Astrophysics
Abstract

The supernova remnant (SNR) G106.3+2.7 associated with a 100 TeV gamma-ray source reported by HAWC, Tibet AS$\gamma$, and LHAASO Collaborations is one of the promising PeVatron candidates. Because the SNR contains an energetic pulsar wind nebula (PWN) dubbed Boomerang powered by the pulsar PSR J2229+6114, it is unclear whether the gamma-ray emission originates from the SNR or PWN complex and whether it is caused by hadronic or leptonic processes. We observed gamma rays above 200 GeV in the vicinity of the SNR G106.3+2.7 using the MAGIC telescopes for total $\sim120$ hours between May 2017 and August 2019 with an angular resolution of 0.07--0.10 degrees, achieving an unprecedented exposure for this object at these energies. An extended gamma-ray emission spatially correlated with the radio continuum emission at the head and tail of SNR G106.3+2.7 was detected using the MAGIC telescopes. We found a significant gamma-ray emission above 5.65 TeV only from the SNR tail region, while no significant emission in the same band is found at the SNR head region containing the Boomerang PWN. Therefore, the gamma rays above 10 TeV detected with the air shower experiments are, likely, mainly emitted from the SNR tail region. In this presentation, we discuss the morphology of the gamma-ray emission from this complex region and attempt self-consistent multi-wavelength modeling of the energy spectrum.

52. Bounds on Lorentz Invariance Violation from MAGIC Observation of GRB 190114C

Author

M. Peresano, Lara Nava, K. Noda, L. Maraschi, Lorenzo Bellizzi, Elina Lindfors, Daniel Mazin, Sidika Merve Colak, Pratik Majumdar, M. V. Fonseca, L. Pavletić, B. Banerjee, Shunsuke Sakurai, Yating Chai, Stefan Cikota, Pawel Gliwny, M. Vazquez Acosta, Alessandra Lamastra, L. Di Venere, Victoria Moreno, L. Nogués, C. Nigro, U. Colin, David A. Green, Martin Will, Alice Donini, Julian Sitarek, L. A. Antonelli, M. I. Martínez, Kari Nilsson, Jorge Otero-Santos, Seiya Nozaki, Alexander Hahn, Abelardo Moralejo, D. Hadasch, Dominik Baack, D. Ninci, Matteo Cerruti, M. Minev, E. Do Souto Espiñeira, Tomislav Terzić, A. Rugliancich, E. Moretti, Marina Manganaro, Stefano Covino, J. Becerra González, P. G. Prada Moroni, C. Perennes, U. Barres de Almeida, I. Vovk, Yoshiki Ohtani, Daniel Morcuende, Jose Luis Contreras, Jordi Delgado, Kyoshi Nishijima, Daniel Kerszberg, J. M. Paredes, Juan Cortina, Martin Makariev, Fabrizio Tavecchio, M. Palatiello, Alessio Berti, F. Di Pierro, Ž. Bošnjak, Damir Lelas, Victor A. Acciari, D. Dominis Prester, Oscar Blanch, V. D'Elia, Ll. Font, Y. Kajiwara, Antonio Stamerra, Yusuke Suda, Wlodek Bednarek, Nikola Godinovic, Kai Phillip Schmidt, Tomoki Saito, Giovanni Ceribella, Francesco Dazzi, Carlo Vigorito, I. Snidaric, Mosè Mariotti, G. Busetto, Yuki Iwamura, Dorota Sobczyńska, Satoshi Fukami, Camilla Maggio, D. Zarić, N. Torres-Albà, Ferdinando Giordano, J. van Scherpenberg, Daniela Dorner, Davide Depaoli, Marc Ribó, Takeshi Oka, Manuel Delfino, Toshiaki Inada, Bernd Schleicher, Christian Fruck, V. Fallah Ramazani, D. Strom, Jose Miguel Miranda, Ivica Puljak, Junko Kushida, M. Gaug, G. Vanzo, P. Da Vela, Moritz Hütten, John Hoang, Konstancja Satalecka, Hidetoshi Kubo, Ana Babić, F. Leone, Michele Doro, Jürgen Besenrieder, S. Ventura, Karl Mannheim, Saverio Lombardi, J. Herrera, Sanae Inoue, Giacomo D'Amico, Manuela Mallamaci, Alessia Spolon, Léa Jouvin, P. Munar-Adrover, Alicia Fattorini, D. Miceli, T. Surić, Masahiro Teshima, B. Machado de Oliveira Fraga, Elisa Bernardini, T. Schweizer, Vassil Verguilov, F Longo, G. Ferrara, Serena Loporchio, Marie Karjalainen, E. Molina, E. Colombo, B. De Lotto, Dario Hrupec, Stefano Ansoldi, Riccardo Paoletti, Lab Saha, Luca Foffano, M. A. Lopez, N. Giglietto, Simone Mender, Mitsunari Takahashi, R. J. García López, M. Strzys, Y. Kobayashi, A. Arbet Engels, A. De Angelis, Vitaly Neustroev, Tjark Miener, Massimo Persic, David Paneque, Luca Tosti, G. Maneva, Chiara Righi, Adrian Biland, P. Temnikov, Giacomo Bonnoli, J. Rico, Ciro Bigongiari, M. Garczarczyk, R. López-Coto, Wrijupan Bhattacharyya, D. Elsaesser, Pablo Peñil, Saša Mićanović, V. Vitale, Sargis Gasparyan, Wolfgang Rhode, Juan Abel Barrio, Narek Sahakyan, A. López-Oramas, R. Mirzoyan, Kazuma Ishio, Elisa Prandini, Rodolfo Carosi, Ashot Chilingarian, Acciari, V. A., Ansoldi, S., Antonelli, L. A., Arbet Engels, A., Baack, D., Babic, A., Banerjee, B., Barres De Almeida, U., Barrio, J. A., Becerra Gonzalez, J., Bednarek, W., Bellizzi, L., Bernardini, E., Berti, A., Besenrieder, J., Bhattacharyya, W., Bigongiari, C., Biland, A., Blanch, O., Bonnoli, G., Bosnjak, A., Busetto, G., Carosi, R., Ceribella, G., Cerruti, M., Chai, Y., Chilingarian, A., Cikota, S., Colak, S. M., Colin, U., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., D'Amico, G., D'Elia, V., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., Delfino, M., Delgado, J., Depaoli, D., Di Pierro, F., Di Venere, L., Do Souto Espineira, E., Dominis Prester, D., Donini, A., Dorner, D., Doro, M., Elsaesser, D., Fallah Ramazani, V., Fattorini, A., Ferrara, G., Foffano, L., Fonseca, M. V., Font, L., Fruck, C., Fukami, S., Garcia Lopez, R. J., Garczarczyk, M., Gasparyan, S., Gaug, M., Giglietto, N., Giordano, F., Gliwny, P., Godinovic, N., Green, D., Hadasch, D., Hahn, A., Herrera, J., Hoang, J., Hrupec, D., Hutten, M., Inada, T., Inoue, S., Ishio, K., Iwamura, Y., Jouvin, L., Kajiwara, Y., Karjalainen, M., Kerszberg, D., Kobayashi, Y., Kubo, H., Kushida, J., Lamastra, A., Lelas, D., Leone, F., Lindfors, E., Lombardi, S., Longo, F., Lopez, M., Lopez-Coto, R., Lopez-Oramas, A., Loporchio, S., Machado De Oliveira Fraga, B., Maggio, C., Majumdar, P., Makariev, M., Mallamaci, M., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Mariotti, M., Martinez, M., Mazin, D., Mender, S., Micanovic, S., Miceli, D., Miener, T., Minev, M., Miranda, J. M., Mirzoyan, R., Molina, E., Moralejo, A., Morcuende, D., Moreno, V., Moretti, E., Munar-Adrover, P., Neustroev, V., Nigro, C., Nilsson, K., Ninci, D., Nishijima, K., Noda, K., Nogues, L., Nozaki, S., Ohtani, Y., Oka, T., Otero-Santos, J., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Pavletic, L., Penil, P., Perennes, C., Peresano, M., Persic, M., Prada Moroni, P. G., Prandini, E., Puljak, I., Rhode, W., Ribo, M., Rico, J., Righi, C., Rugliancich, A., Saha, L., Sahakyan, N., Saito, T., Sakurai, S., Satalecka, K., Schleicher, B., Schmidt, K., Schweizer, T., Sitarek, J., Snidaric, I., Sobczynska, D., Spolon, A., Stamerra, A., Strom, D., Strzys, M., Suda, Y., Suric, T., Takahashi, M., Tavecchio, F., Temnikov, P., Terzic, T., Teshima, M., Torres-Alba, N., Tosti, L., Van Scherpenberg, J., Vanzo, G., Vazquez Acosta, M., Ventura, S., Verguilov, V., Vigorito, C. F., Vitale, V., Vovk, I., Will, M., Zaric, D., and Nava, L.

Subjects
Astrophysics and Astronomy, Photon, Gamma ray burst, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics - High Energy Astrophysical Phenomena, GRB190114C, MAGIC, Lorentz Invariance Violation, FOS: Physical sciences, General Physics and Astronomy, burst [gamma ray], astro-ph.HE, 0 [higher-order], Astrophysics, Lorentz covariance, 01 natural sciences, 7. Clean energy, Gamma ray bursts, energy dependence, Astrophysical studies of gravity, Gamma ray astronomy, Quantum gravity, 0103 physical sciences, ddc:530, MAGIC (telescope), Lorentz [invariance], 010306 general physics, Cherenkov radiation, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, velocity [photon], Lorentz [violation], model [quantum gravity], Gamma-ray astronomy, imaging [Cherenkov counter], Speed of light, spectral, Física nuclear, High Energy Astrophysical Phenomena, Gamma-ray burst
Abstract

On January 14, 2019, the Major Atmospheric Gamma Imaging Cherenkov telescopes detected GRB 190114C above 0.2 TeV, recording the most energetic photons ever observed from a gamma-ray burst. We use this unique observation to probe an energy dependence of the speed of light in vacuo for photons as predicted by several quantum gravity models. Based on a set of assumptions on the possible intrinsic spectral and temporal evolution, we obtain competitive lower limits on the quadratic leading order of speed of light modification., 8 pages, 5 figures, Published in Physical Review Letters, Corresponding authors: Tomislav Terzi\'c (tterzic@phy.uniri.hr), Giacomo D'Amico (damico@mppmu.mpg.de), Daniel Kerszberg (dkerszberg@ifae.es), Cedric Perennes (perennes.cedric@gmail.com)

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53. Monitoring the magnetar SGR 1935+2154 with the MAGIC telescopes

Author

Marcos López-Moya, Wlodek Bednarek, Stefano Covino, Federico Di Pierro, Pratik Majumdar, Ruben Lopez-Coto, Alessandra Lamastra, Vincenzo Vitale, Filippo Ambrosino, Irene Jiménez Martínez, Francesco Leone, Mark P. Snelders, Jose Miguel Miranda, Adrian Biland, Takeshi Nakamori, Martin Will, Francesco Longo, Jordi Delgado, Paolo Da Vela, Francesco Dazzi, Jorge Otero-Santos, Vandad Fallah Ramazani, David H. Green, Barbara De Lotto, Giacomo D'Amico, Josep M. Paredes, Antonio Stamerra, Roberto Carosi, Giovanni Ceribella, Franz Kirsten, John Hoang, Sidika Merve Colak, Abelardo Moralejo, Camilla Maggio, Daniela Dorner, Gaia Vanzo, Seiya Nozaki, Elia Do Souto Espiñeira, Kevin Schmidt, Monica Vazquez Acosta, Marina Manganaro, Daniel Kerszberg, Daniel Morcuende, Jose Luis Contreras, Davide Depaoli, Jarred Gershon Green, Tomohiko Oka, Serena Loporchio, Massimo Persic, Giacomo Bonnoli, D. Dominis Prester, Marc Ribó, Martin Makariev, L. Maraschi, Lorenzo Bellizzi, P. G. Prada Moroni, Hidetoshi Kubo, Juliane van Scherpenberg, Tomohiro Inada, Petar Temnikov, Juan Cortina, Elina Lindfors, Koji Noda, Francesco Coti Zelati, Juan Abel Barrio, Santiago Ubach, Narek Sahakyan, Shunsuke Sakurai, Kyoshi Nishijima, Elisa Bernardini, Ivica Puljak, Junko Kushida, Lovro Pavletić, Davide Miceli, Alessia Spolon, Léa Jouvin, Oscar Blanch, Stefano Menchiari, Bernd Schleicher, Jenni Jormanainen, Satoshi Fukami, Hendrik Bökenkamp, Omar S. Ould-Boukattine, Elena Moretti, Konstancja Satalecka, Leonardo Di Venere, Carlos Delgado Mendez, Edgar Molina, Lluis Font, Vassil Verguilov, Alice Borghese, Bernardo Machado de Oliveira Fraga, Dario Hrupec, Michele Doro, Katsuaki Asano, Alessandro Papitto, Daniel Mazin, Jürgen Besenrieder, Lena Linhoff, Ramon J. García López, Francesco Giordano, Javier Rico, Antonio Tutone, Marcel Strzys, Simone Mender, Thomas Schweizer, Tokonatsu Yamamoto, Sargis Gasparyan, Yating Chai, Ievgen Vovk, Vitaly Neustroev, Mitsunari Takahashi, Javier Herrera, Maria Victoria Fonseca, Masahiro Teshima, Stefano Ansoldi, Stefan Cikota, Pawel Gliwny, Nicola Giglietto, Riccardo Paoletti, Markus Gaug, Luca Tosti, Michele Palatiello, Nikola Godinovic, Wolfgang Rhode, Benito Marcote, Giovanni Busetto, Victoria Moreno, Ryuji Takeishi, Ciro Bigongiari, Chiara Righi, Darko Zarić, Stefano Truzzi, D. M. Strom, Kari Nilsson, Wrijupan Bhattacharyya, Valerio D'Elia, Manuela Mallamaci, Julian Sitarek, Alice Donini, Jason W. T. Hessels, G. Maneva, Pablo Peñil, Alessandro De Angelis, Marie Karjalainen, Daniela Hadasch, Iva Šnidarić, Alexander Hahn, Saša Mićanović, Chaitanya Priyadarshi, Yoshiki Ohtani, Ivana Batković, Yusuke Suda, Marine Pihet, Matteo Cerruti, Manuel Delfino, Ulisses Barres de Almeida, Louis Antonelli, Lara Nava, Dominik Elsaesser, Razmik Mirzoyan, Mosè Mariotti, Damir Lelas, Lea Heckmann, Andrés Baquero, Francesco Gabriele Saturni, Tarek M. Hassan, Yasushi Fukazawa, Carolin Wunderlich, Ana Babić, Dorota Sobczyńska, Fabrizio Tavecchio, Zeljka Bosnjak, Eduardo Colombo, Carlo Vigorito, Tjark Miener, Victor A. Acciari, David Paneque, Jelena Strišković, Moritz Hütten, Saverio Lombardi, Andrea Rugliancich, Takashi Saito, Dominik Baack, Alessio Berti, Yukiho Kobayashi, Axel Arbet Engels, Cosimo Nigro, Sofia Ventura, Yuki Iwamura, Susumu Inoue, Tihomir Surić, Karl Mannheim, Christian Fruck, Alicia López-Oramas, Maria-Isabel Bernardos, Simona Paiano, Alicia Fattorini, M. I. Martínez, Manuel Artero, Markus Garczarczyk, Josefa González, Tomislav Terzić, Kazuma Ishio, Elisa Prandini, and Ashot Chilingarian

Subjects
Physics, Wavelength, Fast radio burst, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Context (language use), Astrophysics, MAGIC (telescope), Magnetar, Astrophysics::Galaxy Astrophysics, Cherenkov radiation, Optical telescope
Abstract

The Galactic magnetar SGR 1935+2154 was associated with a bright, millisecond-timescale fast radio burst (FRB) which occured in April 2020, during a flaring episode. This was the first time an FRB was unequivocally associated with a Galactic source, and the first FRB for which the nature of the emitting source was identified. Moreover, it was the first FRB with a counterpart at another wavelength correlated in time, an atypical, hard X-ray burst, which provides clear evidence for accompanying non-thermal processes. The MAGIC Telescopes are Imaging Air Cherenkov Telescopes (IACTs) sensitive to very-high-energy (VHE, E>100 GeV) gamma rays. Located at the center of the camera lies the MAGIC Central pixel, a single fully-modified photosensor-to- readout chain to measure millisecond-duration optical signals, displaying a maximum sensitivity at a wavelength of 350 nm. This allows MAGIC to operate simultaneously both as a VHE gamma- ray and a fast optical telescope. The MAGIC telescopes have monitored SGR 1935+2154 in a multiwavelength campaign involving X-ray, radio and optical facilities. In this contribution, we will show the results on the search for the VHE counterpart of the first SGR-FRB source in this multiwavelength context, as well as the search for fast optical bursts with the MAGIC Central Pixel.

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

Author

R. J. García López, Chiara Righi, D. Dominis Prester, P. Temnikov, J. Becerra González, M. Hayashida, Cosimo Nigro, M. Nievas Rosillo, J. Kushida, Massimo Persic, A. De Angelis, A. Treves, Vitaly Neustroev, Jose Luis Contreras, S. Paiano, M. Lopez, Satoshi Masuda, Karl Mannheim, Ignasi Reichardt, I. Snidaric, D. Kuveždić, M. I. Martínez, D. Zarić, Juan Cortina, V. Fallah Ramazani, Nikola Godinovic, M. Garczarczyk, Mosè Mariotti, Aaron Dominguez, Arka Chatterjee, Francesco Longo, J. E. Ward, Alessandro Carosi, D. Fidalgo, Marc Ribó, Stefano Ansoldi, Tomislav Terzić, Christian Fruck, Abelardo Moralejo, Ievgen Vovk, Sabrina Einecke, Riccardo Paoletti, Dario Hrupec, E. Prandini, Daniela Dorner, N. Torres-Albà, Dariusz Gora, P. Bangale, G. Pedaletti, Sidika Merve Colak, Julian Sitarek, J. M. Paredes, Mitsunari Takahashi, G. Maneva, T. Schweizer, P. G. Prada Moroni, J. Hose, Hidetoshi Kubo, Antonio Stamerra, K. Nishijima, Daniela Hadasch, R. Ch. Berse, M. Gaug, G. Vanzo, Jose Miguel Miranda, Yusuke Konno, Adrian Biland, M. Minev, Marcel Strzys, Masahiro Teshima, J. Herrera, Razmik Mirzoyan, U. Barres de Almeida, M. Vazquez Acosta, Wolfgang Rhode, M. Delfino, Koji Noda, Damir Lelas, Martin Makariev, L. Nogués, Elisa Bernardini, K. Nilsson, J. Rico, Victoria Moreno, Oscar Blanch, Saverio Lombardi, Francesco Dazzi, A. Fernández-Barral, B. De Lotto, G. Bonnoli, Dorota Sobczyńska, D. Ninci, Andrea Rugliancich, Tarek M. Hassan, W. Bednarek, Fabrizio Tavecchio, J. Palacio, B. Banerjee, C. Arcaro, M. Peresano, Jordi Delgado, Ivica Puljak, Pierre Colin, F. Di Pierro, Ll. Font, Camilla Maggio, Max Ludwig Ahnen, D. Elsaesser, P. Da Vela, P. Giammaria, Dominik Baack, Kazuma Ishio, T. Surić, Shimpei Tsujimoto, Rodolfo Carosi, L. Maraschi, Elina Lindfors, Daniel Mazin, A. Berti, E. Colombo, Stefano Covino, L. O. Takalo, Pratik Majumdar, M. V. Fonseca, Tomoki Saito, Giovanni Ceribella, Louis Antonelli, T. Nagayoshi, Martin Will, Juan Abel Barrio, Ana Babić, J. R. Garcia, A. Niedzwiecki, David Paneque, Wrijupan Bhattacharyya, D. Guberman, K. Mielke, E. Moretti, Marina Manganaro, D. Galindo, P. Cumani, Konstancja Satalecka, Michele Doro, Alexander Hahn, Ahnen, M. L., Ansoldi, S., Antonelli, L. A., Arcaro, C., Baack, D., Babić, A., Banerjee, B., Bangale, P., de Almeida, U. Barre, 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. Domini, 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. Nieva, 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., and Zarić, D.

Subjects
supersymmetry and cosmology, High energy, Ursa Major, Milky Way, Astrophysics::High Energy Astrophysical Phenomena, Dark matter, FOS: Physical sciences, gamma ray experiments, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, dark matter, dwarf spheroidal satellite galaxies, indirect searches, Imaging Air Cherenkov Telescopes, Ursa Major II, 01 natural sciences, Dark Matter, Gamma-rays, High Energy Physics - Phenomenology (hep-ph), 0103 physical sciences, Satellite galaxy, ddc:530, MAGIC (telescope), 010303 astronomy & astrophysics, dark matter experiments, dwarfs galaxies, Astrophysics::Galaxy Astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Annihilation, 010308 nuclear & particles physics, Astronomy and Astrophysics, Dwarf spheroidal galaxy, High Energy Physics - Phenomenology, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena
Abstract

Journal of cosmology and astroparticle physics 2018(03), 009 (2018). doi:10.1088/1475-7516/2018/03/009, 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 $\gtrsim$ 50 GeV) in search for signatures of DM annihilation in the wide massrange 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., Published by IOP, London

55. Observation of a relatively low luminosity long duration GRB 201015A by the MAGIC telescopes

Author

Dominik Elsaesser, Razmik Mirzoyan, Javier Rico, Tokonatsu Yamamoto, Vitaly Neustroev, Damir Lelas, Lea Heckmann, Francesco Gabriele Saturni, Alexander Hahn, Dorota Sobczyńska, Zeljka Bosnjak, Dario Hrupec, Mitsunari Takahashi, Luca Tosti, Manuel Delfino, Ulisses Barres de Almeida, Valerio D'Elia, G. Maneva, Ana Babić, Michele Palatiello, Marine Pihet, Mosè Mariotti, Kazuma Ishio, Ievgen Vovk, Matteo Cerruti, Jordi Delgado, Yusuke Suda, Adrian Biland, Abelardo Moralejo, Yasushi Fukazawa, D. Dominis Prester, Lena Linhoff, Elisa Prandini, Yuki Iwamura, Kevin Schmidt, Carlo Vigorito, Francesco Longo, Stefano Truzzi, Juliane van Scherpenberg, Ivica Puljak, Jenni Jormanainen, Alice Donini, Satoshi Fukami, Davide Miceli, Saverio Lombardi, Daniel Morcuende, Davide Depaoli, Jose Luis Contreras, Bernardo Machado de Oliveira Fraga, Ashot Chilingarian, Vandad Fallah Ramazani, Christian Fruck, Josep M. Paredes, Antonio Stamerra, Andrea Rugliancich, Juan Cortina, Iva Šnidarić, Ramon J. García López, L. Maraschi, Wrijupan Bhattacharyya, Pratik Majumdar, Elina Lindfors, Pablo Peñil, M. I. Martínez, Masahiro Teshima, Alessia Spolon, Léa Jouvin, Hendrik Bökenkamp, Leonardo Di Venere, Daniel Mazin, Daniela Dorner, Gaia Vanzo, Markus Garczarczyk, Jürgen Besenrieder, Francesco Giordano, Antonio Tutone, Elia Do Souto Espiñeira, Chiara Righi, Giacomo Bonnoli, Takashi Saito, P. G. Prada Moroni, Bernd Schleicher, Edgar Molina, Martin Will, Saša Mićanović, Junko Kushida, Lovro Pavletić, Jorge Otero-Santos, Lara Nava, Marie Karjalainen, Dominik Baack, Ryuji Takeishi, Petar Temnikov, Koji Noda, Josefa González, D. M. Strom, Kari Nilsson, Ivana Batković, Manuela Mallamaci, Louis Antonelli, Yukiho Kobayashi, Elisa Bernardini, Chaitanya Priyadarshi, Alessandro De Angelis, Stefano Covino, Thomas Schweizer, Seiya Nozaki, Stefano Ansoldi, Riccardo Paoletti, Takeshi Nakamori, Vassil Verguilov, Martin Makariev, Oscar Blanch, Francesco Dazzi, Fabrizio Tavecchio, Markus Gaug, Barbara De Lotto, Manuel Artero, Carolin Wunderlich, Camilla Maggio, Eduardo Colombo, Tjark Miener, David Paneque, Giovanni Ceribella, Tomislav Terzić, Santiago Ubach, Juan Abel Barrio, Tomohiko Oka, Narek Sahakyan, Maria-Isabel Bernardos, Jelena Strišković, Kenta Terauchi, Ciro Bigongiari, Daniel Kerszberg, Kyoshi Nishijima, Marina Manganaro, Shunsuke Sakurai, Carlos Delgado Mendez, Victor A. Acciari, Elena Moretti, Julian Sitarek, Simona Paiano, Konstancja Satalecka, Alicia Fattorini, Michele Doro, Marc Ribó, Serena Loporchio, Moritz Hütten, Hidetoshi Kubo, Tomohiro Inada, Daniela Hadasch, Roberto Carosi, Yoshiki Ohtani, Andrés Baquero, Massimo Persic, Stefano Menchiari, Alessandra Lamastra, Vincenzo Vitale, Lluis Font, Francesco Leone, Marcos López-Moya, Wlodek Bednarek, Federico Di Pierro, Ruben Lopez-Coto, Irene Jiménez Martínez, Jose Miguel Miranda, Paolo Da Vela, David H. Green, Marcel Strzys, Katsuaki Asano, Maria Victoria Fonseca, Sidika Merve Colak, Monica Vazquez Acosta, Simone Mender, Javier Herrera, Yating Chai, Stefan Cikota, Pawel Gliwny, Nicola Giglietto, Nikola Godinovic, Victoria Moreno, Darko Zarić, John Hoang, Lorenzo Bellizzi, Giacomo D'Amico, Jarred Gershon Green, Cosimo Nigro, Sofia Ventura, Sargis Gasparyan, Alessio Berti, Wolfgang Rhode, Giovanni Busetto, Axel Arbet Engels, Tihomir Surić, Karl Mannheim, and Alicia López-Oramas

Subjects
Physics, education.field_of_study, High energy, Astrophysics::High Energy Astrophysical Phenomena, Population, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Redshift, Luminosity, Supernova, MAGIC (telescope), Gamma-ray burst, education, Short duration
Abstract

Starting from the first announcement of unequivocal detection of very high energy (VHE) emission from a gamma-ray burst (GRB) by the MAGIC telescopes (GRB 190114C), four additional detections of VHE emission from GRBs by ground-based telescopes were reported. These observations have revealed a new, energetic component that has become an additional probe to explore GRB physics. In order to deepen our understanding of the origin of this new component, and in general of the origin of radiation from GRBs, further observations by VHE instruments are crucial. In this work we report fast follow-up observations by the MAGIC telescopes of GRB 201015A, a GRB detected by the Swift/BAT. As measured by BAT, the prompt emission lasted 9.8 +/- 3.5 seconds, suggesting that this GRB belongs to the class of long events. This was later confirmed by optical observations, which allowed to measure the redshift (𝑧 = 0.42) and found the associated type Ic-BL supernova. Having a prompt isotropic-equivalent energy of 𝐸iso ∼10^{50} erg, this GRB is a relatively low energy event as compared to the population of long GRBs. Observations with the MAGIC telescopes started about 30 seconds after the GRB onset and were performed under good observational conditions. The accurate analysis of the MAGIC data reveals a strong hint of detection and implies a significant energy release in the TeV range, smaller but comparable with that of the prompt emission in the keV-MeV band.

56. Recent results on LIV studies using MAGIC telescopes from the observation of GRB 190114C

Author

Giacomo D( extquotesingle)Amico, Acciari, Victor A., Stefano, Ansoldi, Lucio Angelo Antonelli, Axel Arbet Engels, Manuel, Artero, Katsuaki, Asano, Dominik, Baack, Ana, Babic, Andr('(e))s, Baquero, Ulisses Barres de Almeida, Juan Abel Barrio, Ivana, Batkovi('(c)), Josefa Becerra Gonzalez, Wlodek, Bednarek, Lorenzo, Bellizzi, Elisa, Bernardini, Maria-Isabel, Bernardos, Alessio, Berti, Jürgen, Besenrieder, Wrijupan, Bhattacharyya, Ciro, Bigongiari, Adrian, Biland, Oscar, Blanch, Hendrik, Bökenkamp, Giacomo, Bonnoli, Zeljka, Bosnjak, Giovanni, Busetto, Roberto, Carosi, Giovanni, Ceribella, Matteo, Cerruti, Yating, Chai, Ashot, Chilingarian, Stefan, Cikota, Sidika Merve Colak, Eduardo, Colombo, Jose Luis Contreras, Juan, Cortina, Stefano, Covino, Valerio D( extquotesingle)Elia, Paolo Da Vela, Francesco, Dazzi, Alessandro De Angelis, Barbara De Lotto, Manuel, Delfino, Jordi, Delgado, Carlos Delgado Mendez, Davide, Depaoli, Federico Di Pierro, Leonardo Di Venere, Elia Do Souto Espi(~(n))eira, Dijana Dominis Prester, Alice, Donini, Daniela, Dorner, Michele, Doro, Dominik, Elsaesser, Vandad Fallah Ramazani, Alicia, Fattorini, Maria Victoria Fonseca, Lluis, Font, Christian, Fruck, Satoshi, Fukami, Yasushi, Fukazawa, Garc('(i))a L('(o))pez, Ramon J., Markus, Garczarczyk, Sargis, Gasparyan, Markus, Gaug, Giglietto, Nicola, Francesco, Giordano, Pawel, Gliwny, Nikola, Godinovic, David, Green, Jarred Gershon Green, Daniela, Hadasch, Alexander, Hahn, Lea, Heckmann, Javier, Herrera, John, Hoang, Dario, Hrupec, Moritz, Hütten, Tomohiro, Inada, Kazuma, Ishio, Yuki, Iwamura, Irene Jim('(e))nez Mart('(i))nez, Jenni, Jormanainen, L('(e))a, Jouvin, Marie, Karjalainen, Daniel, Kerszberg, Yukiho, Kobayashi, Hidetoshi, Kubo, Junko, Kushida, Alessandra, Lamastra, Damir, Lelas, Francesco, Leone, Elina, Lindfors, Lena, Linhoff, Saverio, Lombardi, Francesco, Longo, Ruben, Lopez-Coto, Marcos, L('(o))pez-Moya, Alicia, L('(o))pez-Oramas, Loporchio, Serena, Bernardo Machado de Oliveira Fraga, Camilla, Maggio, Pratik, Majumdar, Martin, Makariev, Manuela, Mallamaci, Galina, Maneva, Marina, Manganaro, Karl, Mannheim, Laura, Maraschi, Mos(`(e)), Mariotti, Manel, Martinez, Daniel, Mazin, Stefano, Menchiari, Simone, Mender, Sa( (s))a Mi('(c))anovi('(c)), Davide, Miceli, Tjark, Miener, Jose Miguel Miranda, Razmik, Mirzoyan, Edgar, Molina, Abelardo, Moralejo, Daniel, Morcuende, Victoria, Moreno, Elena, Moretti, Takeshi, Nakamori, Lara, Nava, Vitaly, Neustroev, Cosimo, Nigro, Kari, Nilsson, Kyoshi, Nishijima, Koji, Noda, Seiya, Nozaki, Yoshiki, Ohtani, Tomohiko, Oka, Jorge, Otero-Santos, Simona, Paiano, Michele, Palatiello, David, Paneque, Riccardo, Paoletti, Paredes, Josep M., Lovro, Pavleti('(c)), Pablo, Pe(~(n))il, Massimo, Persic, Marine, Pihet, Pier Giorgio Prada Moroni, Elisa, Prandini, Chaitanya, Priyadarshi, Ivica, Puljak, Wolfgang, Rhode, Marc, Rib('(o)), Javier, Rico, Chiara, Righi, Andrea, Rugliancich, Narek, Sahakyan, Takayuki, Saito, Shunsuke, Sakurai, Konstancja, Satalecka, Francesco Gabriele Saturni, Bernd, Schleicher, Kevin, Schmidt, Thomas, Schweizer, Julian, Sitarek, Iva, ( (S))nidari('(c)), Dorota, Sobczy('(n))ska, Alessia, Spolon, Antonio, Stamerra, Jelena Stri( (s))kovi('(c)), Derek, Strom, Marcel, Strzys, Yusuke, Suda, Tihomir, Suri('(c)), Mitsunari, Takahashi, Ryuji, Takeishi, Fabrizio, Tavecchio, Petar, Temnikov, Tomislav, Terzic, Masahiro, Teshima, Luca, Tosti, Stefano, Truzzi, Antonio, Tutone, Santiago, Ubach, Juliane van Scherpenberg, Gaia, Vanzo, Monica VAZQUEZ ACOSTA, Sofia, Ventura, Vassil, Verguilov, Carlo Francesco Vigorito, Vincenzo, Vitale, Ievgen, Vovk, Martin, Will, Carolin, Wunderlich, Tokonatsu, Yamamoto, Darko, Zari('(c)), C('(e))dric, Perennes, and And

Subjects
Physics, Astronomy, MAGIC (telescope), Gamma-ray burst

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