OT 081 的多波段研究：一个过渡型耀变体的宽频段建模
高能天体物理现象
2025-03-06 v2
摘要
OT 081 是一个著名的、高光度的耀变体，在多个能段表现出显著的变异性。我们首次对该源进行了宽频段研究，其中包含了由 MAGIC 和 H.E.S.S. 成像切伦科夫望远镜获取的甚高能（VHE，100 GeV） 射线数据。VHE 射线辐射的发现发生在 2016 年 7 月的一次 射线高活动态期间，当时从射电到 VHE 射线的众多仪器都对其进行了观测。我们识别出该源的四个活动态，其中一个包含 VHE 射线辐射。在 VHE 波段发现了日尺度的变化。在 55--300 GeV 和 120--500 GeV 的能量范围内，其内禀 VHE 谱可分别用指数为 （MAGIC）和 （H.E.S.S.）的幂律谱描述。简单的单区同步自康普顿模型无法成功再现宽频段辐射。相反，需要一个额外的外部康普顿分量。我们测试了一个能很好拟合数据集的轻子-强子模型，以及一个需要极端质子光度的质子同步辐射主导模型。能够成功表征数据的辐射模型将辐射区置于宽线区（BLR）之外很远的位置，该处的辐射环境由尘埃环的红外热辐射场主导。在此次耀发活动所描述的场景中，该源表现为一个 FSRQ，这与过去的分类不同。这表明该源可被视为一个过渡型耀变体，介于 BL Lac 和 FSRQ 天体之间。
引用
@article{arxiv.2410.22557,
title = {Multi-wavelength study of OT 081: broadband modelling of a transitional blazar},
author = {MAGIC Collaboration and H. Abe and S. Abe and V. A. Acciari and I. Agudo and T. Aniello and S. Ansoldi and L. A. Antonelli and A. Arbet Engels and C. Arcaro and M. Artero and K. Asano and D. Baack and A. Babić and A. Baquero and U. Barres de Almeida and I. Batković and J. Baxter and E. Bernardini and M. Bernardos and J. Bernete and A. Berti and C. Bigongiari and A. Biland and O. Blanch and G. Bonnoli and Ž. Bošnjak and I. Burelli and G. Busetto and A. Campoy-Ordaz and A. Carosi and R. Carosi and M. Carretero-Castrillo and A. J. Castro-Tirado and Y. Chai and A. Cifuentes 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 D. Dominis Prester and A. Donini and D. Dorner and M. Doro and D. Elsaesser and G. Emery and J. Escudero and L. Fariña and A. Fattorini and L. Foffano and L. Font and S. Fukami and Y. Fukazawa and R. J. García López and S. Gasparyan and M. Gaug and J. G. Giesbrecht Paiva and N. Giglietto and F. Giordano and P. Gliwny and R. Grau and J. G. Green and D. Hadasch and A. Hahn and L. Heckmann and J. Herrera and D. Hrupec and M. Hütten and R. Imazawa and T. Inada and R. Iotov and K. Ishio and I. Jiménez Martínez and J. Jormanainen and D. Kerszberg and G. W. Kluge and Y. Kobayashi and H. Kubo and J. Kushida and M. Láinez Lezáun and A. Lamastra and F. Leone and E. Lindfors and L. Linhoff and S. Lombardi and F. Longo and M. López-Moya and A. López-Oramas and S. Loporchio and A. Lorini and B. Machado de Oliveira Fraga and P. Majumdar and M. Makariev and G. Maneva and N. Mang and M. Manganaro and S. Mangano 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 J. M. Miranda and R. Mirzoyan and E. Molina and H. A. Mondal and D. Morcuende and C. Nanci and V. Neustroev and C. Nigro and K. Nishijima and T. Njoh Ekoume and K. Noda and S. Nozaki and Y. Ohtani and J. Otero-Santos and S. Paiano and M. Palatiello and D. Paneque and R. Paoletti and J. M. Paredes and L. Pavletić and M. Persic and M. Pihet and G. Pirola and F. Podobnik and P. G. Prada Moroni and E. Prandini and G. Principe and C. Priyadarshi and W. Rhode and M. Ribó and J. Rico and C. Righi and N. Sahakyan and T. Saito and K. Satalecka and F. G. Saturni and B. Schleicher and K. Schmidt and F. Schmuckermaier and J. L. Schubert and T. Schweizer and J. Sitarek and A. Spolon and A. Stamerra and J. Strišković and D. Strom and Y. Suda and T. Surić and S. Suutarinen and H. Tajima 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 S. Ubach and J. van Scherpenberg and S. Ventura and V. Verguilov and I. Viale and C. F. Vigorito and V. Vitale and R. Walter and T. Yamamoto and Collaborators and : and F. Ait Benkhali and Y. Becherini and B. Bi and M. Böttcher and J. Bolmont and A. Brown and T. Bulik and S. Casanova and T. Chand and S. Chandra and J. Chibueze and O. Chibueze and K. Egberts and S. Einecke and J. -P. Ernenwein and G. Fontaine and S. Gabici and P. Goswami and M. Holler and M. Jamrozy and V. Joshi and E. Kasai and K. Katarzyński and R. Khatoon and B. Khélifi and W. Kluzniak and K. Kosack and S. Le Stum and A. Lemière and R. Marx and R. Moderski and M. O. Moghadam and M. de Naurois and J. Niemiec and P. O'Brien and M. Ostrowski and G. Peron and S. Pita and G. Pühlhofer and A. Quirrenbach and B. Rudak and V. Sahakian and D. A. Sanchez and A. Santangelo and M. Sasaki and H. M. Schutte and M. Seglar-Arroyo and J. N. S. Shapopi and R. Steenkamp and C. Steppa and H. Suzuki and T. Tanaka and M. Tluczykont and C. Venter and S. J. Wagner and A. Wierzcholska and A. A. Zdziarski and N. Żywucka and Fermi-LAT Collaboration and : and J. Becerra González and S. Ciprini and T. M. Venters and MWL collaborators and : and F. D'Ammando and A. Esteban-Gutiérrez and V. Fallah Ramazani and A. V. Filippenko and T. Hovatta and H. Jermak and S. Jorstad and S. Kiehlmann and A. Lähteenmäki and V. M. Larionov and E. Larionova and A. P. Marscher and D. Morozova and W. Max-Moerbeck and A. C. S. Readhead and R. Reeves and I. A. Steele and M. Tornikoski and F. Verrecchia and H. Xiao and W. Zheng},
journal= {arXiv preprint arXiv:2410.22557},
year = {2025}
}
备注
Accepted on MNRAS Corresponding authors: M. Manganaro, J. Becerra Gonz\'alez, M. Seglar-Arroyo, D. A. Sanchez