Accès ouvert déclaré
2025
preprint
Science Prospects for the Southern Wide-field Gamma-ray Observatory: SWGO
Swgo Collaboration, P. Abreu, R. Alfaro, Alexander Alfonso, Mônica Calixto de Andrade, E. O. Angüner, E. Anita-Rangel, C. Arcaro, R. Arceo, J. C. Arteaga‐Velázquez, P. Assis, H. A. Ayala Solares, Alena Bakalová, E. M. Bandeira, P. Bangale, U. Barres de Almeida, P. Batista, I. Batković, J. Bazo, E. Belmont, J. Bennemann, S. BenZvi, Argelia Bernal, Weixin Bian, C. Bigongiari, E. Bottacini, R. Branada, P. Brogueira, A. M. Brown, T. Bulik, K. S. Caballero‐Mora, P. Camarri, Wenyu Cao, Zhen Cao, T. Capistrán, M. Cardillo, C. Casentini, C. Castromonte, P. M. Chadwick, Julio Chanamé, Jin Chang, Shaomin Chen, A. Chiavassa, L. Chytka, R. Colalillo, Ricardo Conceição, G. Consolati, Raúl R. Cordero, P. J. Costa, R. Covarelli, A. De Angelis, E. M. de Gouveia Dal Pino, Raniere de Menezes, P. Desiati, Niccolò Di Lalla, F. Di Pierro, G. Di Sciascio, J. C. Díaz–Vélez, Claudio Dib, B.L. Dingus, J. I. Djuvsland, C. Dobrigkeit, Luis Miguel Domingues Mendes, T. Dorigo, M. Doro, A. C. dos Reis, Michael Du Vernois, D. Elsäesser, K. Engel, T. Ergin, M. Errando, Ke Fang, A. Fazzi, C. Feng, M. Feroci, Cristine Nunes Ferreira, N. Fraija, S. Fraija, A. Franceschini, Sebastian Funk, Bo Gao, C. D. Gao, Andres Reyes, S. Garcia, F. Garfias, Gwenael Giacinti, Lucio Gibilisco, Jonas Glombitza, H. Goksu, Guanghua Gong, B. S. González, José Mauricio González, J. A. Goodman, V. M. Grieco, M. H. Gu, F. Guarino, G. P. Guedes, J. Gyeong, Fabian Haist, Guangbing Han, Patricia María Hansen, J. P. Harding, Sergio Hernández Cadena, I. Herzog, J. A. Hinton, W. Hofmann, C. Hou, Chuan Hou, Kun Hu, D. Huang, P. Huentemeyer, A. Iriarte, Jasmina Isaković, A. Jardin-Blicq, L. I. Junoy, Jakub Jurýšek, Samy Kaci, B. Khélifi, D. Kieda, Fabio La Monaca, G. La Mura, R. G. Lang, J. Lapington, Roxana Laspiur, Luigi Lavitola, J. S. H. Lee, Franziska Leitl, M. Lemoine‐Goumard, Luigi Lessio, Tiffany R. Lewis, Cong Li, J. Li, K. Li, Tianyu Li, B. Liberti, Shangrong Lin, R. A. Lineros, Dong Liu, Jia Liu, Rong Liu, F. Longo, Yu Luo, Jing Lv, Elena Macerata, Gabriele Magugliani, K. Malone, A. Mancilla, D. Mandat, M. Manganaro, Mario Mariani, A. G. Mariazzi, M. Mariotti, Teresa Marrodan, H. Martínez-Huerta, I. Martins, S. Medina, Diego Melo, E. Meza, Rosaria Micali, Davide Miceli, S. Miozzi, L. S. Miranda, Paola Nathaly Silva-Enríquez, A. Mitchell, A. Molinario, A. Montero, Oscar G. Morales-Olivares, A. Morselli, Eros Mossini, M. Mostafá, Fabio Muleri, F. Nardi, Anupama Nayak, Alessandro Negro, L. Nellen, Mehr un Nisa, Vladimír Novotný, Laura Olivera-Nieto, N. Omodei, S. Ortolani, M. Osorio-Archila, Tsutomu Ota, Luis Otiniano, Z. W. Ou, A. Paoloni, I. M. Pepe, Rolando Perca, M. Peresano, Y. Pérez Araujo, T. Petrosillo-Lago, G. Piano, D. Piccolo, A. Pichel, M. Pimenta, Markus Pirke, A. Porcelli, Thomas C. Porter, E. Prandini, Alvaro Pratts, R. Pretsch, Qi An, Jiajun Qin, S. Rainò, L. Recabarren, Maxime Regeard, Andreas Reisenegger, Quentin Rémy, Helena X. Ren, Filip Rescic, Brian Reville, M. Reyes, Chang Dong Rho, Mario Riquelme, J. I. Rivadeneira, Gonzalo Rodriguez Fernandez, B. Rossi, A. C. Rovero, Arshia Ruina, E. Ruiz-Velasco, Germán Ariel Salazar, C. Salotto, F. Sánchez, A. Sandoval, F. Sansone, M. Santander, R. Santonico, Gizele Lian P. Santos, Ayax Santos-Guevara, D. Sartirana, H. Schoorlemmer, Frank Schröder, F. Schussler, H. M. Schutte, José Serna-Franco, Muhammad Shoaib, Andrew Smith, A. J. Smith, Y. Son, Orlando Javier Soto Sandoval, S. Spencer, R. W. Springer, J. B. Stewart, Luiz Augusto Stuani, Hao Sun, Matteo Tambone, Ruqi Tang, Z. Tang, M. Tavani, R. Terrier, T. Terzić, Kirsten Tollefson, B. Tomé, I. Torres, R. Torres-Escobedo, G. C. Trinchero, Rhiannon M. Turner, L. Valore, C. van Eldik, I. D. Vergara Quispe, A. Viana, J. Vícha, C. F. Vigorito, V. Vittorini, Bo Wang, Lingyu Wang, X. Wang, Z. Wang, Muhammad Mohsin Waqas, I. J. Watson, F. Werner, R. White, C. H. Wiebusch, Frederik Wohlleben, Shibo Xi, Gang Xiao, H. Xiao, Lili Yang, R. Yang, Raul Yanyachi, Z. G. Yao, D. Zavrtanik, Honglin Zhang, Juan Zhang, Shuo Zhang, X. Zhang, Jing Zhao, Lei Zhao, H. Zhou, C. G. Zhu, Ping Zhu, Xiaobing Zuo, P. Żyła
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Résumé fourni par la source
Ground-based gamma-ray astronomy is now well established as a key observational approach to address critical topics at the frontiers of astroparticle physics and high-energy astrophysics. Whilst the field of TeV astronomy was once dominated by arrays of atmospheric Cherenkov Telescopes, ground-level particle detection has now been demonstrated to be an equally viable and strongly complementary approach. Ground-level particle detection provides continuous monitoring of the overhead sky, critical for the mapping of extended structures and capturing transient phenomena. As demonstrated by HAWC and LHAASO, the technique provides the best available sensitivity above a few tens of TeV, and for the first time access to the PeV energy range. Despite the success of this approach, there is so far no major ground-level particle-based observatory with access to the Southern sky. HESS, located in Namibia, is the only major gamma-ray instrument in the Southern Hemisphere, and has shown the extraordinary richness of the inner galaxy in the TeV band, but is limited in terms of field of view and energy reach. SWGO is an international effort to construct the first wide-field instrument in the south with deep sensitivity from 100s of GeV into the PeV domain. The project is now close to the end of its development phase and planning for construction of the array in Chile has begun. Here we describe the baseline design, expected sensitivity and resolution, and describe in detail the main scientific topics that will be addressed by this new facility and its initial phase SWGO-A. We show that SWGO will have a transformational impact on a wide range of topics from cosmic-ray acceleration and transport to the nature of dark matter. SWGO represents a key piece of infrastructure for multi-messenger astronomy in the next decade, with strong scientific synergies with the nearby CTA Observatory.
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