CTAO LST-1 对磁星 SGR 1935+2154 的观测：深层限制次秒脉冲和持续太赫兹辐射
高能天体物理现象
2025-12-08 v1
摘要
银河磁星 SGR 1935+2154 在最近几年显示出丰富的高能 (HE) 脉冲活动。调查其潜在的太赫兹 (TeV) 反应信号可提供关于磁星辐射机制以及极端天体环境中非常高能 (VHE) 处理的见解。我们旨在搜索其持续和亚秒尺度脉冲辐射的可能的太赫兹反应信号。我们分析了来自观察 CTAO 大型探针望远镜原型号 (LST-1) 的超过 25 小时的观测数据，这些观测发生在 2021 和 2022 年的 SGR 1935+2154 高能活动期间，以寻找持续辐射。对于脉冲辐射，我们选取并分析了九个 0.1 s 时间窗口，围绕已知的短 X 射线脉冲，以针对低光子统计条件下的潜在亚秒尺度太赫兹反应信号。尽管在我们的搜索中未检测到持续或脉冲辐射，但我们为与软伽马射线流量同步的太赫兹脉冲辐射建立了上限。具体而言，对于我们样本中最亮的脉冲，太赫兹与 X 射线流量之比小于 。未检测到来自 SGR 1935+2154 的持续或脉冲太赫兹辐射表明，如果存在此类成分，它们可能在我们观察未覆盖的特定条件下出现。这与磁星驱动的快速脉冲信号和巨型磁星闪烁中的 MeV - GeV 辐射检测结果相吻合。这些发现凸显了磁星、快速脉冲信号以及其他快速瞬时现象作为未来在低光子统计条件下使用成像气象式太赫兹望远镜（特别是 CTAO）进行观测的潜在候选对象。
引用
@article{arxiv.2512.05634,
title = {CTAO LST-1 observations of magnetar SGR 1935+2154: Deep limits on sub-second bursts and persistent tera-electronvolt emission},
author = {K. Abe and S. Abe and A. Abhishek and F. Acero and A. Aguasca-Cabot and I. Agudo and C. Alispach and D. Ambrosino and F. Ambrosino and L. A. Antonelli and C. Aramo and A. Arbet-Engels and C. Arcaro and T. T. H. Arnesen and K. Asano and P. Aubert and A. Baktash and M. Balbo and A. Bamba and A. Baquero Larriva and U. Barres de Almeida and J. A. Barrio and L. Barrios Jiménez and I. Batkovic and J. Baxter and J. Becerra González and E. Bernardini and J. Bernete and A. Berti and I. Bezshyiko and C. Bigongiari and E. Bissaldi and O. Blanch and G. Bonnoli and P. Bordas and G. Borkowski and G. Brunelli and A. Bulgarelli and M. Bunse and I. Burelli and L. Burmistrov and M. Cardillo and S. Caroff and A. Carosi and R. Carraro and M. S. Carrasco and F. Cassol and N. Castrejón and D. Cerasole and G. Ceribella and A. Cerviño Cortínez and Y. Chai and K. Cheng and A. Chiavassa and M. Chikawa and G. Chon and L. Chytka and G. M. Cicciari and A. Cifuentes and J. L. Contreras and J. Cortina and H. Costantini and M. Dalchenko and P. Da Vela and F. Dazzi and A. De Angelis and M. de Bony de Lavergne and R. Del Burgo and C. Delgado and J. Delgado Mengual and M. Dellaiera and D. della Volpe and B. De Lotto and L. Del Peral and R. de Menezes and G. De Palma and C. Díaz and A. Di Piano and F. Di Pierro and R. Di Tria and L. Di Venere and R. M. Dominik and D. Dominis Prester and A. Donini and D. Dorner and M. Doro and L. Eisenberger and D. Elsässer and G. Emery and J. Escudero and V. Fallah Ramazani and F. Ferrarotto and A. Fiasson and L. Foffano and F. Frías García-Lago and S. Fröse and Y. Fukazawa and S. Gallozzi and R. Garcia López and S. Garcia Soto and C. Gasbarra and D. Gasparrini and D. Geyer and J. Giesbrecht Paiva and N. Giglietto and F. Giordano and N. Godinovic and T. Gradetzke and R. Grau and D. Green and J. Green and S. Gunji and P. G"unther and J. Hackfeld and D. Hadasch and A. Hahn and M. Hashizume and T. Hassan and K. Hayashi and L. Heckmann and M. Heller and J. Herrera Llorente and K. Hirotani and D. Hoffmann and D. Horns and J. Houles and M. Hrabovsky and D. Hrupec and D. Hui and M. Iarlori and R. Imazawa and T. Inada and Y. Inome and S. Inoue and K. Ioka and M. Iori and T. Itokawa and A. Iuliano and J. Jahanvi and I. Jimenez Martinez and J. Jimenez Quiles and I. Jorge Rodrigo and J. Jurysek and M. Kagaya and O. Kalashev and V. Karas and H. Katagiri and D. Kerszberg and T. Kiyomot and Y. Kobayashi and K. Kohri and A. Kong and P. Kornecki and H. Kubo and J. Kushida and B. Lacave and M. Lainez and G. Lamanna and A. Lamastra and L. Lemoigne and M. Linhoff and S. Lombardi and F. Longo and R. López-Coto and M. López-Moya and A. López-Oramas and S. Loporchio and A. Lorini and J. Lozano Bahilo and F. Lucarelli and H. Luciani and P. L. Luque-Escamilla and P. Majumdar and M. Makariev and M. Mallamaci and D. Mandat and M. Manganaro and D. K. Maniadakis and G. Manicò and K. Mannheim and S. Marchesi and F. Marini and M. Mariotti and P. Marquez and G. Marsella and J. Martí and O. Martinez and G. Martínez and M. Martínez and A. Mas-Aguilar and M. Massa and G. Maurin and D. Mazin and J. Méndez-Gallego and S. Menon and E. Mestre Guillen and S. Micanovic and D. Miceli and T. Miener and J. M. Miranda and R. Mirzoyan and M. Mizote and T. Mizuno and M. Molero Gonzalez and E. Molina and T. Montaruli and A. Moralejo and D. Morcuende and A. Moreno Ramos and A. Morselli and V. Moya and H. Muraishi and S. Nagataki and T. Nakamori and A. Neronov and D. Nieto Castaño and M. Nievas Rosillo and L. Nikolic and K. Nishijima and K. Noda and D. Nosek and V. Novotny and S. Nozaki and M. Ohishi and Y. Ohtani and T. Oka and A. Okumura and R. Orito and L. Orsini and J. Otero-Santos and P. Ottanelli and M. Palatiello and G. Panebianco and D. Paneque and F. R. Pantaleo and R. Paoletti and J. M. Paredes and M. Pech and M. Pecimotika and M. Peresano and F. Pfeifle and E. Pietropaolo and M. Pihet and G. Pirola and C. Plard and F. Podobnik and M. Polo and E. Prandini and M. Prouza and S. Rainò and R. Rando and W. Rhode and M. Ribó and V. Rizi and G. Rodriguez Fernandez and M. D. Rodríguez Frías and P. Romano and A. Roy and A. Ruina and E. Ruiz-Velasco and T. Saito and S. Sakurai and D. A. Sanchez and H. Sano and T. Šarić and Y. Sato and F. G. Saturni and V. Savchenko and F. Schiavone and B. Schleicher and F. Schmuckermaier and J. L. Schubert and F. Schussler and T. Schweizer and M. Seglar Arroyo and T. Siegert and G. Silvestri and A. Simongini and J. Sitarek and V. Sliusar and A. Stamerra and J. Strišković and M. Strzys and Y. Suda and A. Sunny and H. Tajima and M. Takahashi and J. Takata and R. Takeishi and P. H. T. Tam and S. J. Tanaka and D. Tateishi and T. Tavernier and P. Temnikov and Y. Terada and K. Terauchi and T. Terzic and M. Teshima and M. Tluczykont and F. Tokanai and T. Tomura and D. F. Torres and F. Tramonti and P. Travnicek and G. Tripodo and A. Tutone and M. Vacula and J. van Scherpenberg and M. Vázquez Acosta and S. Ventura and S. Vercellone and G. Verna and I. Viale and A. Vigliano and C. F. Vigorito and E. Visentin and V. Vitale and V. Voitsekhovskyi and G. Voutsinas and I. Vovk and T. Vuillaume and R. Walter and L. Wan and M. Will and J. Wójtowicz and T. Yamamoto and R. Yamazaki and Y. Yao and P. K. H. Yeung and T. Yoshida and T. Yoshikoshi and W. Zhang and S. Mereghetti and N. Parmiggiani and C. Vignali and R. Zanin},
journal= {arXiv preprint arXiv:2512.05634},
year = {2025}
}
备注
13 pages, 5 figures. Accepted for publication in Astronomy & Astrophysics