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Mas-Aguilar, A. Modaressi, A. Moralejo, A. Okumura, A. P. Marscher, A. Reimer, A. Rugliancich, A. Scherbantin, A. Spolon, A. Stamerra, A. Strigachev, A. Tramacere, A. Tsai, A. Tutone, A. Valcheva, B. De Lotto, B. Kotas, B. Machado de Oliveira Fraga, B. Schleicher, C. Arcaro, C. Bigongiari, C. Casadio, C. Delgado Mendez, C. Fruck, C. F. Vigorito, C. Leto, C. Lorey, C. M. Raiteri, C. Nanci, C. Nigro, collaborations: M. Cerruti, C. Priyadarshi, C. Righi, C. Singh, C. Wunderlich, D. A. Morozova, D. Baack, D. Carosati, D. Depaoli, D. Dominis Prester, D. Dorner, D. Elsaesser, D. Green, D. Hadasch, D. Hiriart, D. Hrupec, D. Kerszberg, D. Lelas, D. Mazin, D. Miceli, D. Morcuende, D. Paneque, D. Reinhart, D. Seifert, D. Sobczynska, D. Strom, D. Zari\\'c, E. Ben\\'itez, E. Bernardini, E. Colombo, E. Do Souto Espi\\~neira, E. G. Larionova, E. Heidemann, E. Lindfors, E. Lyard, E. Molina, E. N. Kopatskaya, E. Ovcharov, E. Prandini, E. Semkov, E. Traianou, E. Zaharieva, F. Dazzi, F. Di Pierro, F. Giordano, F. G. Saturni, F. Leone, F. Longo, F. Podobnik, F. Schmuckermaier, F. Tavecchio, F. Verrecchia, G. Apolonio, G. Bonnoli, G. Busetto, G. Ceribella, G. D'Amico, G. Damljanovic, G. Emery, G. Maneva, G. M. Madejski, G. N. Kimeridze, G. Pirola, G. Principe, H. A. Mondal, H. Kubo, H. Tajima, I. Agudo, I. Batkovi\\'c, I. Bj\\\"orklund, I. Burelli, I. Jim\\'enez Mart\\'inez, I. Myserlis, I. S. Troitskiy, I. Viale, I. Vovk, J. A. Acosta-Pulido, J. A. Barrio, J. A. Kramer, J. Baxter, J. Becerra Gonz\\'alez, J. Besenrieder, J. B. Trump, J. Cortina, J. Delgado, J. Escudero, J. Finke, J. G. Giesbrecht Paiva, J. G. Green, J. Herrera, J. Jormanainen, J. Kania, J. Kushida, J. L. Contreras, J. L. Schubert, J. M. L\\'opez, J. M. Miranda, J. M. Paredes, J. Otero-Santos, J. Rico, J. Sitarek, J. Stri\\v{s}kovi\\'c, J. van Scherpenberg, K. Asano, K. Epps, K. Gazeas, K. Ishio, K. Mannheim, K. Nilsson, K. Nishijima, K. Noda, K. Rosenlehner, K. Satalecka, K. Schmidt, K. Schoch, K. Terauchi, K. Vrontaki, L. A. Antonelli, L. A. Sigua, L. Di Venere, L. Fari\\~na, L. F. Brown, L. Foffano, L. Font, L. Heckmann, L. Kunkel, L. Linhoff, L. Nava, L. Pavleti\\'c, L. Schneider, L. Tosti, L. V. Larionova, MAGIC Collaboration: H. Abe, M. A. Gurwell, M. Artero, M. Balokovi\\'c, M. Bernardos, M. Carretero-Castrillo, M. Delfino, M. D. Joner, M. Doro, M. Feige, M. Garczarczyk, M. Gaug, M. Giroletti, M. G. Nikolashvili, M. H\\\"utten, M. I. Carnerero, M. Kopp, M. Korte, M. L\\'opez-Moya, M. Makariev, M. Manganaro, M. Mariotti, M. Mart\\'inez, M. Minev, M. Nievas Rosillo, M. Palatiello, M. Perri, M. Persic, M. Pihet, M. Rib\\'o, M. Spencer, M. Stojanovic, M. Strzys, M. Takahashi, M. Teshima, M. Tornikoski, M. Vazquez Acosta, M. Villata, M. Will, N. Giglietto, N. Godinovi\\'c, N. Mang, N. Marchili, N. Sahakyan, N. Zottmann, O. Blanch, O. M. Kurtanidze, Other groups, O. Vince, P. Da Vela, P. Gliwny, P. G. Prada Moroni, P. Majumdar, P. Sola, P. Temnikov, R. A. Chigladze, R. Bachev, R. Carosi, R. Grau, R. Imazawa, R. Iotov, R. J. Garc\\'ia L\\'opez, R. L\\'opez-Coto, R. Mirzoyan, R. M\\'ujica, R. Paoletti, R. Steineke, R. Takeishi, R. Walter, S. Abe, S. Ansoldi, S. Cikota, S. Covino, S. Fukami, S. Gasparyan, S. G. Jorstad, S. Ibryamov, S. Kiehlmann, S. Koyama, S. Lombardi, S. Loporchio, S. Mangano, S. Menchiari, S. Mender, S. Mi\\'canovi\\'c, S. Nozaki, S. O. Kurtanidze, S. Paiano, S. Righini, S. Sakurai, S. S. Savchenko, S. Truzzi, S. Ubach, S. Ventura, T. Aniello, T. Hassan, T. Hovatta, T. Inada, T. Miener, T. Mufakharov, T. Nakamori, T. Njoh Ekoume, T. Oka, T. Saito, T. Schweizer, T. S. Grishina, T. Suri\\'c, T. Terzi\\'c, T. Yamamoto, U. Barres de Almeida, V. A. Acciari, V. Bozhilov, V. D'Elia, V. Fallah Ramazani, V. M. Larionov, V. Moreno, V. Neustroev, V. Sliusar, V. Verguilov, V. Vitale, \\v{Z}. Bo\\v{s}njak, W. Bednarek, W. Bhattacharyya, W. Carbonell, W. Chamani, W. J. Hou, W. P. Chen, W. Rhode, Y. Chai, Y. Fukazawa, Y. Kobayashi, Y. Ohtani, Y. Sotnikova, Y. Suda, Yu. V. Troitskaya, Z. R. Weaver","submitted_at":"2022-10-05T20:22:11Z","abstract_excerpt":"We study the broadband emission of Mrk 501 using multi-wavelength observations from 2017 to 2020 performed with a multitude of instruments, involving, among others, MAGIC, Fermi-LAT, NuSTAR, Swift, GASP-WEBT, and OVRO. Mrk 501 showed an extremely low broadband activity, which may help to unravel its baseline emission. Nonetheless, significant flux variations are detected at all wavebands, with the highest occurring at X-rays and very-high-energy (VHE) $\\gamma$-rays. A significant correlation ($>$3$\\sigma$) between X-rays and VHE $\\gamma$-rays is measured, supporting leptonic scenarios to expla"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2210.02547","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-10-05T20:22:11Z","cross_cats_sorted":[],"title_canon_sha256":"0c1236825a447f10d475718e8f065bda9996bcde7720f0a297ab9d31071a6139","abstract_canon_sha256":"2a37d937448ff607b4b1ea4b34141164061d61514f7b88f164cabcf8a2914229"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:21:53.534136Z","signature_b64":"3XrVVYGI85pSOXd4NM/K+05g6O7Sc5YSACYfa8cr2DvzwwBcgQHpfFFANrRkQYtBFKA0JnK0sM2WZGk4YrcbCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"361bf7a9feb84391840f6f9662be05f8137bcbf9c3252ba5899471c8c64f3a4b","last_reissued_at":"2026-07-05T06:21:53.533604Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:21:53.533604Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multi-messenger characterization of Mrk 501 during historically low X-ray and $\\gamma$-ray activity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. A. Nikiforova, A. Arbet Engels, A. A. Vasilyev, A. Babi\\'c, A. Baquero, A. Berti, A. Biland, A. Bugg, A. C. Gupta, A. Chilingarian, A. C. Sadun, A. C. S. Readhead, A. De Angelis, A. Del Popolo, A. Donini, A. Erkenov, A. Fattorini, A. Fuentes, A. Hahn, A. J. Castro-Tirado, A. L\\\"ahteenm\\\"aki, A. Lamastra, A. L\\'opez-Oramas, A. Lorini, A. Mas-Aguilar, A. Modaressi, A. Moralejo, A. Okumura, A. P. Marscher, A. Reimer, A. Rugliancich, A. Scherbantin, A. Spolon, A. Stamerra, A. Strigachev, A. Tramacere, A. Tsai, A. Tutone, A. Valcheva, B. De Lotto, B. Kotas, B. Machado de Oliveira Fraga, B. Schleicher, C. Arcaro, C. Bigongiari, C. Casadio, C. Delgado Mendez, C. Fruck, C. F. Vigorito, C. Leto, C. Lorey, C. M. Raiteri, C. Nanci, C. Nigro, collaborations: M. Cerruti, C. Priyadarshi, C. Righi, C. Singh, C. Wunderlich, D. A. Morozova, D. Baack, D. Carosati, D. Depaoli, D. Dominis Prester, D. Dorner, D. Elsaesser, D. Green, D. Hadasch, D. Hiriart, D. Hrupec, D. Kerszberg, D. Lelas, D. Mazin, D. Miceli, D. Morcuende, D. Paneque, D. Reinhart, D. Seifert, D. Sobczynska, D. Strom, D. Zari\\'c, E. Ben\\'itez, E. Bernardini, E. Colombo, E. Do Souto Espi\\~neira, E. G. Larionova, E. Heidemann, E. Lindfors, E. Lyard, E. Molina, E. N. Kopatskaya, E. Ovcharov, E. Prandini, E. Semkov, E. Traianou, E. Zaharieva, F. Dazzi, F. Di Pierro, F. Giordano, F. G. Saturni, F. Leone, F. Longo, F. Podobnik, F. Schmuckermaier, F. Tavecchio, F. Verrecchia, G. Apolonio, G. Bonnoli, G. Busetto, G. Ceribella, G. D'Amico, G. Damljanovic, G. Emery, G. Maneva, G. M. Madejski, G. N. Kimeridze, G. Pirola, G. Principe, H. A. Mondal, H. Kubo, H. Tajima, I. Agudo, I. Batkovi\\'c, I. Bj\\\"orklund, I. Burelli, I. Jim\\'enez Mart\\'inez, I. Myserlis, I. S. Troitskiy, I. Viale, I. Vovk, J. A. Acosta-Pulido, J. A. Barrio, J. A. Kramer, J. Baxter, J. Becerra Gonz\\'alez, J. Besenrieder, J. B. Trump, J. Cortina, J. Delgado, J. Escudero, J. Finke, J. G. Giesbrecht Paiva, J. G. Green, J. Herrera, J. Jormanainen, J. Kania, J. Kushida, J. L. Contreras, J. L. Schubert, J. M. L\\'opez, J. M. Miranda, J. M. Paredes, J. Otero-Santos, J. Rico, J. Sitarek, J. Stri\\v{s}kovi\\'c, J. van Scherpenberg, K. Asano, K. Epps, K. Gazeas, K. Ishio, K. Mannheim, K. Nilsson, K. Nishijima, K. Noda, K. Rosenlehner, K. Satalecka, K. Schmidt, K. Schoch, K. Terauchi, K. Vrontaki, L. A. Antonelli, L. A. Sigua, L. Di Venere, L. Fari\\~na, L. F. Brown, L. Foffano, L. Font, L. Heckmann, L. Kunkel, L. Linhoff, L. Nava, L. Pavleti\\'c, L. Schneider, L. Tosti, L. V. Larionova, MAGIC Collaboration: H. Abe, M. A. Gurwell, M. Artero, M. Balokovi\\'c, M. Bernardos, M. Carretero-Castrillo, M. Delfino, M. D. Joner, M. Doro, M. Feige, M. Garczarczyk, M. Gaug, M. Giroletti, M. G. Nikolashvili, M. H\\\"utten, M. I. Carnerero, M. Kopp, M. Korte, M. L\\'opez-Moya, M. Makariev, M. Manganaro, M. Mariotti, M. Mart\\'inez, M. Minev, M. Nievas Rosillo, M. Palatiello, M. Perri, M. Persic, M. Pihet, M. Rib\\'o, M. Spencer, M. Stojanovic, M. Strzys, M. Takahashi, M. Teshima, M. Tornikoski, M. Vazquez Acosta, M. Villata, M. Will, N. Giglietto, N. Godinovi\\'c, N. Mang, N. Marchili, N. Sahakyan, N. Zottmann, O. Blanch, O. M. Kurtanidze, Other groups, O. Vince, P. Da Vela, P. Gliwny, P. G. Prada Moroni, P. Majumdar, P. Sola, P. Temnikov, R. A. Chigladze, R. Bachev, R. Carosi, R. Grau, R. Imazawa, R. Iotov, R. J. Garc\\'ia L\\'opez, R. L\\'opez-Coto, R. Mirzoyan, R. M\\'ujica, R. Paoletti, R. Steineke, R. Takeishi, R. Walter, S. Abe, S. Ansoldi, S. Cikota, S. Covino, S. Fukami, S. Gasparyan, S. G. Jorstad, S. Ibryamov, S. Kiehlmann, S. Koyama, S. Lombardi, S. Loporchio, S. Mangano, S. Menchiari, S. Mender, S. Mi\\'canovi\\'c, S. Nozaki, S. O. Kurtanidze, S. Paiano, S. Righini, S. Sakurai, S. S. Savchenko, S. Truzzi, S. Ubach, S. Ventura, T. Aniello, T. Hassan, T. Hovatta, T. Inada, T. Miener, T. Mufakharov, T. Nakamori, T. Njoh Ekoume, T. Oka, T. Saito, T. Schweizer, T. S. Grishina, T. Suri\\'c, T. Terzi\\'c, T. Yamamoto, U. Barres de Almeida, V. A. Acciari, V. Bozhilov, V. D'Elia, V. Fallah Ramazani, V. M. Larionov, V. Moreno, V. Neustroev, V. Sliusar, V. Verguilov, V. Vitale, \\v{Z}. Bo\\v{s}njak, W. Bednarek, W. Bhattacharyya, W. Carbonell, W. Chamani, W. J. Hou, W. P. Chen, W. Rhode, Y. Chai, Y. Fukazawa, Y. Kobayashi, Y. Ohtani, Y. Sotnikova, Y. Suda, Yu. V. Troitskaya, Z. R. Weaver","submitted_at":"2022-10-05T20:22:11Z","abstract_excerpt":"We study the broadband emission of Mrk 501 using multi-wavelength observations from 2017 to 2020 performed with a multitude of instruments, involving, among others, MAGIC, Fermi-LAT, NuSTAR, Swift, GASP-WEBT, and OVRO. Mrk 501 showed an extremely low broadband activity, which may help to unravel its baseline emission. Nonetheless, significant flux variations are detected at all wavebands, with the highest occurring at X-rays and very-high-energy (VHE) $\\gamma$-rays. 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