Constraints on the Emission of Gamma-Rays from M31 with HAWC
Constraints on the Emission of Gamma-Rays from M31 with HAWC
复制标题
HAWC对M_（31）γ辐射的限制
DOI：
10.3847/1538-4357/ab7999
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发表时间：
2020-01
期刊：
影响因子：
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通讯作者：
A. Albert;R. Alfaro;C. Álvarez;J. C. Arteaga-Vel'azquez;K. Arunbabu;D. Rojas;H. Solares;E. Belmont-Moreno;S. BenZvi;C. Brisbois;K. Caballero-Mora;T. Capistrán;A. Carramiñana;S. Casanova;U. Cotti;J. Cotzomi;S. León;E. D. L. Fuente;C. D. León;S. Dichiara;B. Dingus;M. DuVernois;K. Engel;C. Espinoza;H. Fleischhack;N. Fraija;A. Galv'an-G'amez;D. Garc'ia-Aguilar;J. A. García-González;F. Garfias;M. Gonz'alez;J. Goodman;J. P. Harding;S. Hernández;B. Hona;D. Huang;F. Hueyotl-Zahuantitla;P. Hüntemeyer;A. Iriarte;A. Jardin-Blicq;V. Joshi;D. Kieda;William H. Lee;H. L. Vargas;A. Longinotti;G. Luis-Raya;K. Malone;S. Marinelli;O. Martinez;I. Martinez-Castellanos;J. Martínez-Castro;J. Matthews;P. Miranda-Romagnoli;J. Morales-Soto;E. Moreno;M. Mostafá;A. Nayerhoda;L. Nellen;M. Newbold;R. Noriega-Papaqui;A. Peisker;E. Pérez-Pérez-E.-Pérez-Pérez-1431205495;Z. Ren;C. Rho;D. Rosa-González;M. Rosenberg;R. Rubenzahl;H. Salazar;F. Greus;A. Sandoval;M. Schneider;G. Sinnis;A. Smith;R. Springer;P. Surajbali;E. Tabachnick;O. Tibolla;K. Tollefson;I. Torres;L. Villaseñor;J. Wood;T. Yapici;A. Zepeda;Hong-lei Zhou
中科院分区：
文献类型：
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作者：
A. Albert;R. Alfaro;C. Álvarez;J. C. Arteaga-Vel'azquez;K. Arunbabu;D. Rojas;H. Solares;E. Belmont-Moreno;S. BenZvi;C. Brisbois;K. Caballero-Mora;T. Capistrán;A. Carramiñana;S. Casanova;U. Cotti;J. Cotzomi;S. León;E. D. L. Fuente;C. D. León;S. Dichiara;B. Dingus;M. DuVernois;K. Engel;C. Espinoza;H. Fleischhack;N. Fraija;A. Galv'an-G'amez;D. Garc'ia-Aguilar;J. A. García-González;F. Garfias;M. Gonz'alez;J. Goodman;J. P. Harding;S. Hernández;B. Hona;D. Huang;F. Hueyotl-Zahuantitla;P. Hüntemeyer;A. Iriarte;A. Jardin-Blicq;V. Joshi;D. Kieda;William H. Lee;H. L. Vargas;A. Longinotti;G. Luis-Raya;K. Malone;S. Marinelli;O. Martinez;I. Martinez-Castellanos;J. Martínez-Castro;J. Matthews;P. Miranda-Romagnoli;J. Morales-Soto;E. Moreno;M. Mostafá;A. Nayerhoda;L. Nellen;M. Newbold;R. Noriega-Papaqui;A. Peisker;E. Pérez-Pérez-E.-Pérez-Pérez-1431205495;Z. Ren;C. Rho;D. Rosa-González;M. Rosenberg;R. Rubenzahl;H. Salazar;F. Greus;A. Sandoval;M. Schneider;G. Sinnis;A. Smith;R. Springer;P. Surajbali;E. Tabachnick;O. Tibolla;K. Tollefson;I. Torres;L. Villaseñor;J. Wood;T. Yapici;A. Zepeda;Hong-lei Zhou
众所周知，宇宙射线以及恒星辐射和磁场构成了银河系等星系能量密度的很大一部分。当宇宙射线在星际介质中相互作用时，它们会产生伽马射线发射，这为宇宙射线如何传播提供了重要指示。来自距我们 785 kpc 的仙女座星系 (M31) 的伽马射线为研究结构和演化与银河系非常相似的星系中的宇宙射线加速和扩散提供了独特的机会。使用高海拔水切伦科夫天文台 33 个月的数据，我们搜索来自 M31 银道面的太电子伏伽马射线。我们还通过寻找银河核上方和下方的费米气泡状结构来调查 M31 星系活动的过去和现在的证据。没有观察到明显的伽马射线发射，因此我们使用零结果来计算 M31 中 >10 TeV 的宇宙射线能量密度的上限。
Cosmic rays, along with stellar radiation and magnetic fields, are known to make up a significant fraction of the energy density of galaxies such as the Milky Way. When cosmic rays interact in the interstellar medium, they produce gamma-ray emission which provides an important indication of how the cosmic rays propagate. Gamma-rays from the Andromeda galaxy (M31), located 785 kpc away, provide a unique opportunity to study cosmic-ray acceleration and diffusion in a galaxy with a structure and evolution very similar to the Milky Way. Using 33 months of data from the High Altitude Water Cherenkov Observatory, we search for teraelectronvolt gamma-rays from the galactic plane of M31. We also investigate past and present evidence of galactic activity in M31 by searching for Fermi bubble-like structures above and below the galactic nucleus. No significant gamma-ray emission is observed, so we use the null result to compute upper limits on the energy density of cosmic rays >10 TeV in M31.