通过锐利多波段观测审视耀变体 TXS 0506+056（2017–2019）
高能天体物理现象
2022-05-03 v2
摘要
耀变体 TXS 0506+056 于 2017 年 9 月成为天体物理界焦点，当时 IceCube 探测到的高能中微子（IceCube-170922A）在 3 水平上与该源的 射线耀发相关联。这一多信使光子-中微子关联迄今为止仍是有史以来观测到的最显著关联。在 IceCube-170922A 事件之前，TXS 0506+056 是一个很少被研究的天体。为更好地刻画其宽带发射，我们组织了一项持续 16 个月（2017 年 11 月至 2019 年 2 月）的多波段观测活动，覆盖射电波段（Mets"ahovi、OVRO）、光学/紫外（ASAS-SN、KVA、REM、Swift/UVOT）、X 射线（Swift/XRT、NuSTAR）、高能 射线（Fermi/LAT）及甚高能（VHE） 射线（MAGIC）。在 射线方面，该源的行为与 2017 年显著不同：MAGIC 观测显示 2018 年 12 月存在耀发活动，而活动其余时间（累计 74 小时曝光）仅显示 4 水平的超出；Fermi/LAT 观测显示若干短时标（天到周）耀发，不同于 2017 年的长期增亮。在较低能段未探测到显著耀发。射电光变曲线显示流量上升趋势，其他波段未见。我们在轻子-强子情景下对多波段能谱分布建模，其中强子发射以 Bethe-Heitler 和介子衰变级联形式出现在 X 射线和 VHE 射线中。根据本文模型，2018 年 12 月的 射线耀发与一次中微子发射相关，但该发射过于短暂且亮度不足，未被当前中微子仪器探测到。
引用
@article{arxiv.2202.02600,
title = {Investigating the blazar TXS 0506+056 through sharp multi-wavelength eyes during 2017-2019},
author = {MAGIC Collaboration and V. A. Acciari and T. Aniello and S. Ansoldi and L. A. Antonelli and A. Arbet Engels and M. Artero and K. Asano and D. Baack and A. Babić and A. Baquero and U. Barres de Almeida and J. A. Barrio and I. Batković and J. Becerra González and W. Bednarek and E. Bernardini and M. Bernardos and A. Berti and J. Besenrieder and W. Bhattacharyya and C. Bigongiari and A. Biland and O. Blanch and H. Bökenkamp and G. Bonnoli and Ž. Bošnjak and G. Busetto and R. Carosi and G. Ceribella and M. Cerruti and Y. Chai and A. Chilingarian and S. Cikota and E. Colombo and J. L. Contreras and J. Cortina and S. Covino and G. D'Amico and V. D'Elia and P. Da Vela and F. Dazzi and A. De Angelis and B. De Lotto and A. Del Popolo and M. Delfino and J. Delgado and C. Delgado Mendez and D. Depaoli and F. Di Pierro and L. Di Venere and E. Do Souto Espiñeira and D. Dominis Prester and A. Donini and D. Dorner and M. Doro and D. Elsaesser and V. Fallah Ramazani and L. Fariña and A. Fattorini and L. Font and C. Fruck and S. Fukami and Y. Fukazawa and R. J. García López and M. Garczarczyk and S. Gasparyan and M. Gaug and N. Giglietto and F. Giordano and P. Gliwny and N. Godinović and J. G. Green and D. Green and D. Hadasch and A. Hahn and T. Hassan and L. Heckmann and J. Herrera and J. Hoang and D. Hrupec and M. Hütten and T. Inada and R. Iotov and K. Ishio and Y. Iwamura and I. Jiménez Martínez and J. Jormanainen and L. Jouvin and D. Kerszberg and Y. Kobayashi and H. Kubo and J. Kushida and A. Lamastra and D. Lelas and F. Leone and E. Lindfors and L. Linhoff and S. Lombardi and F. Longo and R. López-Coto and M. López-Moya and A. López-Oramas and S. Loporchio and B. Machado de Oliveira Fraga and C. Maggio and P. Majumdar and M. Makariev and M. Mallamaci and G. Maneva and M. Manganaro and K. Mannheim and M. Mariotti and M. Martínez and A. Mas Aguilar and D. Mazin and S. Menchiari and S. Mender and S. Mićanović and D. Miceli and T. Miener and J. M. Miranda and R. Mirzoyan and E. Molina and A. Moralejo and D. Morcuende and V. Moreno and E. Moretti and T. Nakamori and L. Nava and V. Neustroev and M. Nievas Rosillo and C. Nigro and K. Nilsson and K. Nishijima and K. Noda and S. Nozaki and Y. Ohtani and T. Oka and J. Otero-Santos and S. Paiano and M. Palatiello and D. Paneque and R. Paoletti and J. M. Paredes and L. Pavletić and P. Peñil and M. Persic and M. Pihet and P. G. Prada Moroni and E. Prandini and C. Priyadarshi and I. Puljak and W. Rhode and M. Ribó and J. Rico and C. Righi and A. Rugliancich and N. Sahakyan and T. Saito and S. Sakurai and K. Satalecka and F. G. Saturni and B. Schleicher and K. Schmidt and F. Schmuckermaier and T. Schweizer and J. Sitarek and I. Šnidarić and D. Sobczynska and A. Spolon and A. Stamerra and J. Strišković and D. Strom and M. Strzys and Y. Suda and T. Surić and M. Takahashi and R. Takeishi and F. Tavecchio and P. Temnikov and T. Terzić and M. Teshima and L. Tosti and S. Truzzi and A. Tutone and S. Ubach and J. van Scherpenberg and G. Vanzo and M. Vazquez Acosta and S. Ventura and V. Verguilov and I. Viale and C. F. Vigorito and V. Vitale and I. Vovk and M. Will and C. Wunderlich and T. Yamamoto and D. Zarić and OVRO Collaboration and : and M. Hodges and T. Hovatta and S. Kiehlmann and I. Liodakis and W. Max-Moerbeck and T. J. Pearson and A. C. S. Readhead and R. A. Reeves and Metsähovi Collaboration and : and A. Lähteenmaäki and M. Tornikoski and J. Tammi and F. D'Ammando and A. Marchini},
journal= {arXiv preprint arXiv:2202.02600},
year = {2022}
}
备注
18 pages, 6 figures; V2 to match published version, typo fixed