HAWC 观测的 TeV 级源丰富区域分析：HESS J1809-193 是否为潜在的 hadronic PeVatron？
高能天体物理现象
2024-07-15 v1 高能物理 - 实验
摘要
HESS J1809-193 是一个未被确认的 TeV 级源，最初由 High Energy Stereoscopic System (H.E.S.S.) 联盟检测。该辐射来源于一个包含多个超新星遗迹（SNR）和脉冲星（PSR）的源丰富区域，包括 SNR G11.1+0.1、SNR G11.0-0.0 以及年轻射电脉冲星 J1809-1917。最初被归类为脉冲风暴星云（PWN）候选对象，近期研究表明该区域的 TeV 辐射峰值与一系統分子云重叠。这导致人们重新审视原始的 leptonic 场景，寻找 alternate hadronic 场景。该区域被标记为潜在的 PeVatron 候选对象，因其辐射延续至数十 TeV。本文使用来自 High Altitude Water Cherenkov (HAWC) 观测站的 2398 天数据，对 HESS J1809-193 区域进行系统性源搜索。我们成功解析了检测到的扩展成分（建模为对称高斯分布，1 半径为 0.21 ），且在高能处无明显截止，辐射能量可达 210 TeV。我们对该区域 HESS J1809-193 的多波段观测进行了时变 leptonic 模型和 lepto-hadronic 模型的建模。我们的模型表明，这两种场景都能在 HESS J1809-193 区域内解释观测数据。
引用
@article{arxiv.2407.08849,
title = {TeV Analysis of a Source Rich Region with HAWC Observatory: Is HESS J1809-193 a Potential Hadronic PeVatron?},
author = {A. Albert and R. Alfaro and C. Alvarez and J. C. Arteaga-Velázquez and D. Avila Rojas and R. Babu and E. Belmont-Moreno and A. Bernal and M. Breuhaus and K. S. Caballero-Mora and T. Capistrán and A. Carramiñana and S. Casanova and J. Cotzomi and E. De la Fuente and D. Depaoli and N. Di Lalla and R. Diaz Hernandez and B. L. Dingus and M. A. DuVernois and C. Espinoza and K. L. Fan and K. Fang and B. Fick and N. Fraija and J. A. García-González and F. Garfias and A. Gonzalez Munoz and M. M. González and J. A. Goodman and S. Groetsch and J. P. Harding and S. Hernández-Cadena and I. Herzog and D. Huang and F. Hueyotl-Zahuantitla and P. Hüntemeyer and A. Iriarte and V. Joshi and S. Kaufmann and A. Lara and J. Lee and H. León Vargas and A. L. Longinotti and G. Luis-Raya and K. Malone and J. Martínez-Castro and J. A. Matthews and P. Miranda-Romagnoli and J. A. Montes and J. A. Morales-Soto and E. Moreno and M. Mostafá and L. Nellen and M. Newbold and M. U. Nisa and R. Noriega-Papaqui and M. Osorio and Y. Pérez Araujo and E. G. Pérez-Pérez and C. D. Rho and D. Rosa-González and E. Ruiz-Velasco and H. Salazar and A. Sandoval and M. Schneider and J. Serna-Franco and A. J. Smith and Y. Son and R. W. Springer and O. Tibolla and K. Tollefson and I. Torres and R. Torres-Escobedo and R. Turner and F. Ureña-Mena and E. Varela and X. Wang and I. J. Watson and E. Willox and S. Yun-Cárcamo and H. Zhou},
journal= {arXiv preprint arXiv:2407.08849},
year = {2024}
}