用 HAWC 搜寻银河系晕中的暗物质
高能天体物理现象
2018-03-14 v2 宇宙学与河外天体物理
高能物理 - 唯象学
摘要
高海拔水切伦科夫（HAWC）伽马射线天文台是一台宽视场天文台，对 500 GeV - 100 TeV 的伽马射线和宇宙线敏感。凭借每天对 2/3 天空的观测，HAWC 天文台对多种天体物理源敏感，包括可能来自暗物质的伽马射线。银河系中暗物质的湮灭与衰变应在天空中跨越许多度产生伽马射线信号。HAWC 瞬时 2 sr 的视场使其能够观测天空中的延展区域，例如银河系晕中暗物质产生的那些区域。本文给出基于 HAWC 对银河系晕 15 个月观测数据得到的暗物质湮灭截面与衰变寿命限制。这些是对于 TeV 和 PeV 暗物质最稳健的限制中的一些，且在很大程度上不依赖于暗物质形态。这些限制开始约束这样一些模型：其中 PeV IceCube 中微子由主要衰变为强子的暗物质所解释。
引用
@article{arxiv.1710.10288,
title = {A Search for Dark Matter in the Galactic Halo with HAWC},
author = {A. U. Abeysekara and A. M. Albert and R. Alfaro and C. Alvarez and J. D. Álvarez and R. Arceo and J. C. Arteaga-Velázquez and D. Avila Rojas and H. A. Ayala Solares and A. Becerril and E. Belmont-Moreno and S. Y. BenZvi and A. Bernal and C. Brisbois and K. S. Caballero-Mora and T. Capistrán and A. Carramiñana and S. Casanova and M. Castillo and U. Cotti and J. Cotzomi and C. De León and E. De la Fuente and R. Diaz Hernandez and B. L. Dingus and M. A. DuVernois and J. C. Díaz-Vélez and K. Engel and O. Enríquez-Rivera and D. W. Fiorino and H. Fleischhack and N. Fraija and J. A. García-González and F. Garfias and A. González Muñoz and M. M. González and J. A. Goodman and Z. Hampel-Arias and J. P. Harding and S. Hernandez and A. Hernandez-Almada and F. Hueyotl-Zahuantitla and P. Hüntemeyer and A. Iriarte and A. Jardin-Blicq and V. Joshi and S. Kaufmann and R. J. Lauer and W. H. Lee and D. Lennarz and H. León Vargas and J. T. Linnemann and A. L. Longinotti and G. Luis-Raya and R. Luna-García and R. López-Coto and K. Malone and S. S. Marinelli and O. Martinez and I. Martinez-Castellanos and J. Martínez-Castro and J. A. Matthews and P. Miranda-Romagnoli and E. Moreno and M. Mostafá and L. Nellen and M. Newbold and M. U. Nisa and R. Noriega-Papaqui and R. Pelayo and J. Pretz and E. G. Pérez-Pérez and Z. Ren and C. D. Rho and N. L. Rodd and D. Rosa-González and M. Rosenberg and E. Ruiz-Velasco and B. R. Safdi and H. Salazar and F. Salesa Greus and A. Sandoval and M. Schneider and G. Sinnis and A. J. Smith and R. W. Springer and P. Surajbali and I. Taboada and O. Tibolla and K. Tollefson and I. Torres and T. N. Ukwatta and G. Vianello and L. Villaseñor and T. Weisgarber and S. Westerhoff and I. G. Wisher and J. Wood and T. Yapici and G. B. Yodh and P. W. Younk and A. Zepeda and H. Zhou},
journal= {arXiv preprint arXiv:1710.10288},
year = {2018}
}
备注
24 pages, 11 figures