揭示 HESS J1813-178 周围的延展 $\gamma$ 射线辐射
高能天体物理现象
2024-06-12 v1
摘要
HESS J1813178 是一个甚高能 射线源，在空间上与年轻且高能量的脉冲星 PSR J18131749 重合，被认为与其脉冲星风云（PWN）相关。近期，Fermi 大面积望远镜（LAT）数据揭示了该脉冲星附近存在延展的高能辐射的证据。这促使我们利用改进的分析方法和扩展的数据集重新研究 HESS J1813178 区域。利用高能立体视野系统（H.E.S.S.）实验和 Fermi-LAT 获取的数据，我们旨在用一致的模型描述该区域的 射线辐射，以深入了解其起源。我们对 32 小时的 H.E.S.S. 数据和 12 年的 Fermi-LAT 数据进行了基于似然的分析，并对组合数据集拟合了光谱形态模型。这些结果使我们能够建立一个物理模型来解释该区域观测到的 射线辐射的起源。除了以脉冲星为中心的紧凑甚高能 射线辐射外，我们还发现了一个显著但此前未被探测到的沿银道面的辐射成分。利用 Fermi-LAT 数据，我们证实了存在与 H.E.S.S. 观测到的延展辐射的位置和拉长形态相一致的高能延展辐射。这些结果确立了对该区域从 GeV 能量到数十 TeV 能量辐射的一致描述。本研究表明，HESS J1813178 与由 PSR J18131749 提供能量的 射线 PWN 相关。该延展辐射成分的一个可能起源是，逃离脉冲星约束的电子和正电子在 PWN 周围形成晕，并产生逆康普顿辐射。
引用
@article{arxiv.2403.16802,
title = {Unveiling extended gamma-ray emission around HESS J1813-178},
author = {F. Aharonian and F. Ait Benkhali and J. Aschersleben and H. Ashkar and M. Backes and A. Baktash and V. Barbosa Martins and J. Barnard and R. Batzofin and Y. Becherini and D. Berge and K. Bernlöhr and B. Bi and M. Böttcher and C. Boisson and J. Bolmont and M. de Bony de Lavergne and J. Borowska and M. Bouyahiaoui and M. Breuhaus and R. Brose and F. Brun and B. Bruno and T. Bulik and C. Burger-Scheidlin and S. Caroff and S. Casanova and R. Cecil and J. Celic and M. Cerruti and P. Chambery and T. Chand and A. Chen and J. Chibueze and O. Chibueze and G. Cotter and J. Damascene Mbarubucyeye and A. Djannati-Ataï and A. Dmytriiev and V. Doroshenko and S. Einecke and J. -P. Ernenwein and K. Feijen and M. Filipovic and G. Fontaine and M. Füßling and S. Funk and S. Gabici and Y. A. Gallant and S. Ghafourizadeh and G. Giavitt and D. Glawion and J. F. Glicenstein and P. Goswami and G. Grolleron and M. -H. Grondin and J. A. Hinton and W. Hofmann and T. L. Holch and M. Holler and M. Jamrozy and F. Jankowsky and V. Joshi and I. Jung-Richardt and K. Katarzyński and R. Khatoon and B. Khélifi and S. Klepser and W. Kluźniak and Nu. Komin and K. Kosack and D. Kostunin and A. Kundu and R. G. Lang and S. Le Stum and F. Leitl and A. Lemière and M. Lemoine-Goumard and J. -P. Lenain and F. Leuschner and J. Mackey and D. Malyshev and D. Malyshev and V. Marandon and P. Marinos and G. Martí-Devesa and R. Marx and A. Mehta and A. Mitchell and R. Moderski and L. Mohrmann and A. Montanari and E. Moulin and T. Murach and M. de Naurois and J. Niemiec and A. Priyana Noel and P. O'Brien and S. Ohm and L. Olivera-Nieto and E. de Ona Wilhelmi and M. Ostrowski and S. Panny and M. Panter and R. D. Parsons and D. A. Prokhorov and G. Pühlhofer and M. Punch and A. Quirrenbach and M. Regeard and P. Reichherzer and A. Reimer and O. Reimer and H. Ren and M. Renaud and B. Reville and F. Rieger and G. Roellinghoff and B. Rudak and V. Sahakian and H. Salzmann and M. Sasaki and F. Schüssler and H. M. Schutte and J. N. S. Shapopi and A. Specovius and S. Spencer and R. Steenkamp and S. Steinmassl and C. Steppa and I. Sushch and H. Suzuki and T. Takahashi and T. Tanaka and R. Terrier and M. Tluczykont and N. Tsuji and T. Unbehaun and C. van Eldik and M. Vecchi and J. Veh and C. Venter and J. Vink and T. Wach and S. J. Wagner and A. Wierzcholska and M. Zacharias and D. Zargaryan and A. A. Zdziarski and S. Zouari and N. Żywucka},
journal= {arXiv preprint arXiv:2403.16802},
year = {2024}
}
备注
13+5 pages, 13+11 figures. Accepted for publication in A&A. Corresponding authors: T.Wach, A.Mitchell, V.Joshi, P.Chamb\'ery