中年脉冲星周围可能普遍存在扩展太电子伏特晕
高能天体物理现象
2025-05-02 v1
摘要
在太电子伏特（TeV）能段，孤立脉冲星周围的扩展伽马射线辐射（也称为TeV晕）已在少数几颗中年脉冲星周围被发现。这些晕的延展范围显著大于其脉冲星风云，但远小于星际介质中的粒子扩散长度。TeV晕的起源尚不清楚。相关解释或诉诸于与脉冲星环境相关的局部效应，或归因于普遍的粒子输运行为。后一种情形预测TeV晕将是所有脉冲星的一种普遍现象。我们利用高海拔水切伦科夫（HAWC）天文台2321天的数据，搜寻了由射电和伽马射线设备证认的36颗孤立中年脉冲星周围的扩展伽马射线辐射。通过将TeV流量模型与仅含背景的假设进行叠加分析，我们在的显著性水平上识别出了类TeV晕的辐射。我们的结果表明，扩展的TeV伽马射线晕可能普遍存在于中年脉冲星周围。这揭示了脉冲星一个此前未知的特征，并为识别那些因磁层位形而在射电、X射线和GeV伽马射线波段不可见的脉冲星群体开辟了新窗口。
引用
@article{arxiv.2505.00175,
title = {Extended TeV Halos May Commonly Exist around Middle-Aged Pulsars},
author = {A. Albert and R. Alfaro and C. Alvarez and J. C. Arteaga-Velázquez and D. Avila Rojas and H. A. Ayala Solares and R. Babu and E. Belmont-Moreno and A. Bernal and K. S. Caballero-Mora and T. Capistrán and A. Carramiñana and S. Casanova and U. Cotti and J. Cotzomi and S. Coutiño de León and E. De la Fuente and D. Depaoli and P. Desiati and N. Di Lalla and R. Diaz Hernandez and B. L. Dingus and M. A. DuVernois and J. C. Díaz-Vélez and K. Engel and C. Espinoza and K. L. Fan and N. Fraija and J. A. García-González and F. Garfias and H. Goksu 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 A. Iriarte and S. Kaufmann and D. Kieda and J. Lee and H. León Vargas and J. T. Linnemann and A. L. Longinotti and G. Luis-Raya and K. Malone and O. Martinez and J. MartínezCastro and J. A. Matthews and P. Miranda-Romagnoli and J. A. Morales-Soto and E. Moreno and M. Mostafá and M. Najafi and A. Nayerhoda and L. Nellen and M. U. Nisa and N. Omodei 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 D. Salazar-Gallegos and A. Sandoval and M. Schneider and J. Serna-Franco 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 L. Villaseñor and X. Wang and E. Willox and H. Zhou and C. de León},
journal= {arXiv preprint arXiv:2505.00175},
year = {2025}
}
备注
12 pages, 6 figures, published as Editor's suggestion in Phys. Rev. Lett., April 30, 2025