2017年Mrk 421相关模式与康普顿优势变异性研究
高能天体物理现象
2021-12-01 v1
摘要
我们呈现了对典型TeV耀变体Mrk 421宽带辐射的详细表征与理论解释，特别关注多波段流量相关性。该数据集通过2016年12月至2017年6月间组织的广泛多波长活动收集。所涉仪器包括MAGIC、FACT、Fermi-LAT、Swift、GASP-WEBT、OVRO、Medicina与Mets"ahovi。此外，四次具有同时MAGIC与NuSTAR观测的深曝光（持续数小时）使得对两个能谱分量下降段的精确测量成为可能。甚高能（VHE；E > 100 GeV）伽马射线与X射线在零时间滞后下正相关，但相关性的强度与特征在所涉及各能带间显著变化。VHE与X射线流量遵循不同模式，部分由于在没有X射线流量同时增加（即孤儿伽马射线活动）的几天内康普顿优势的实质性变化。在研究含NuSTAR观测日期的宽带能谱分布（SED）时，我们表明这些变化可在一区轻子模型内解释，其中团块随时间增大其尺寸。我们的多波段相关研究还暗示UV/光学与X射线间存在高于3西格玛显著性的反相关。2017年2月4日观测到的VHE耀发显示伽马射线在多小时时间尺度上的变异性，TeV流量增加10倍而keV流量仅温和增加。相关的宽带SED由两区轻子情景而非一区情景更好地描述。我们发现该耀发可由一个致密的、充斥高能电子且洛伦兹因子范围狭窄的第二团块的出现产生。
引用
@article{arxiv.2106.05516,
title = {Investigation of the correlation patterns and the Compton dominance variability of Mrk 421 in 2017},
author = {MAGIC Collaboration and V. A. Acciari and S. Ansoldi and L. A. Antonelli and A. Arbet Engels and M. Artero and K. Asano 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 L. Bellizzi and E. Bernardini and M. Bernardos and A. Berti and J. Besenrieder and W. Bhattacharyya and C. Bigongiari and O. Blanch 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 S. M. Colak 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 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 M. Doro and V. Fallah Ramazani and A. Fattorini and G. Ferrara and M. V. Fonseca and L. Font and C. Fruck and S. Fukami 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 L. Heckmann and J. Herrera and J. Hoang and D. Hrupec and M. Hütten and T. Inada and S. Inoue and K. Ishio and Y. Iwamura and I. Jiménez and J. Jormanainen and L. Jouvin and Y. Kajiwara and M. Karjalainen 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 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 L. Maraschi and M. Mariotti and M. Martínez and D. Mazin and S. Menchiari and S. Mender and S. Mićanović and D. Miceli and T. Miener and M. Minev and J. M. Miranda and R. Mirzoyan and E. Molina and A. Moralejo and D. Morcuende and V. Moreno and E. Moretti and V. Neustroev 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 C. Perennes and M. Persic and P. G. Prada Moroni and E. Prandini and C. Priyadarshi and I. Puljak and M. Ribó and J. Rico and C. Righi and A. Rugliancich and L. Saha and N. Sahakyan and T. Saito and S. Sakurai and K. Satalecka and F. G. Saturni and K. Schmidt and T. Schweizer and J. Sitarek and I. Šnidarić and D. Sobczynska and A. Spolon and A. Stamerra and D. Strom and M. Strzys and Y. Suda and T. Surić and M. Takahashi 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 C. F. Vigorito and V. Vitale and I. Vovk and M. Will and C. Wunderlich and D. Zarić and FACT Collaboration and : and D. Baack and M. Balbo and N. Biederbeck and A. Biland and T. Bretz and J. Buss and D. Dorner and L. Eisenberger and D. Elsaesser and D. Hildebrand and R. Iotov and K. Mannheim and D. Neise and M. Noethe and A. Paravac and W. Rhode and B. Schleicher and V. Sliusar and R. Walter and Other groups and collaborations and : and F. D'Ammando and D. Horan and A. Y. Lien and M. Baloković and G. M. Madejski and M. Perri and F. Verrecchia and C. Leto and A. Lähteenmäki and M. Tornikoski and V. Ramakrishnan and E. Järvelä and R. J. C. Vera and M. Villata and C. M. Raiteri and A. C. Gupta and A. Pandey and A. Fuentes and I. Agudo and C. Casadio and E. Semkov and S. Ibryamov and A. Marchini and R. Bachev and A. Strigachev and E. Ovcharov and V. Bozhilov and A. Valcheva and E. Zaharieva and G. Damljanovic and O. Vince and V. M. Larionov and G. A. Borman and T. S. Grishina and V. A. Hagen-Thorn and E. N. Kopatskaya and E. G. Larionova and L. V. Larionova and D. A. Morozova and A. A. Nikiforova and S. S. Savchenko and I. S. Troitskiy and Y. V. Troitskaya and A. A. Vasilyev and O. A. Merkulova and W. P. Chen and M. Samal and H. C. Lin and J. W. Moody and A. C. Sadun and S. G. Jorstad and A. P. Marscher and Z. R. Weaver and M. Feige and J. Kania and M. Kopp and L. Kunkel and D. Reinhart and A. Scherbantin and L. Schneider and C. Lorey and J. A. Acosta-Pulido and M. I. Carnerero and D. Carosati and S. O. Kurtanidze and O. M. Kurtanidze and M. G. Nikolashvili and R. G. Chanishvili and R. A. Chigladze and R. Z. Ivanidze and G. N. Kimeridze and L. A. Sigua and M. D. Joner and M. Spencer and M. Giroletti and N. Marchili and S. Righini and N. Rizzi and G. Bonnoli},
journal= {arXiv preprint arXiv:2106.05516},
year = {2021}
}
备注
38 pages, 23 figures, accepted for publication in Astronomy and Astrophysics. Corresponding authors: Axel Arbet-Engels, David Paneque