HAWC observations of the acceleration of very-high-energy cosmic rays in the Cygnus Cocoon

HAWC observations of the acceleration of very-high-energy cosmic rays in the Cygnus Cocoon
复制标题

DOI：
10.1038/s41550-021-01318-y
复制
发表时间：
2021-03
期刊：
Nature Astronomy
影响因子：
14.1
通讯作者：
A. Abeysekara;A. Albert;R. Alfaro;C. Álvarez;J. Camacho;J. C. Arteaga-Velázquez;K. Arunbabu;D. Rojas;H. Solares;V. Baghmanyan;E. Belmont-Moreno;S. BenZvi;R. Blandford;C. Brisbois;K. Caballero-Mora;T. Capistrán;A. Carramiñana;S. Casanova;U. Cotti;S. León;E. D. L. Fuente;R. Hernández;B. Dingus;M. DuVernois;M. Durocher;J. C. Díaz-Vélez;R. Ellsworth;K. Engel;C. Espinoza;K. Fan;K. Fang;H. Fleischhack;N. Fraija;A. Galván-Gámez;D. García;J. García-González;F. Garfias;G. Giacinti;M. González;J. Goodman;J. P. Harding;S. Hernández;J. Hinton;B. Hona;D. Huang;F. Hueyotl-Zahuantitla;P. Hüntemeyer;A. Iriarte;A. Jardin-Blicq;V. Joshi;D. Kieda;A. Lara;William H. Lee;H. L. Vargas;J. Linnemann;A. Longinotti;G. Luis-Raya;J. Lundeen;K. Malone;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;M. Nisa;R. Noriega-Papaqui;L. Olivera-Nieto;N. Omodei;A. Peisker;Y. P. Araujo;E. Pérez-Pérez-E.-Pérez-Pérez-1431205495;Z. Ren;C. Rho;D. Rosa-González;E. Ruiz-Velasco;H. Salazar;F. Greus;A. Sandoval;Michael Schneider;H. Schoorlemmer;F. Serna;A. Smith;R. Springer;P. Surajbali;K. Tollefson;I. Torres;R. Torres-Escobedo;F. Ureña-Mena;T. Weisgarber;F. Werner;E. Willox;A. Zepeda;H. Zhou;C. D. León;J. Álvarez
A. Abeysekara;A. Albert;R. Alfaro;C. Álvarez;J. Camacho;J. C. Arteaga-Velázquez;K. Arunbabu;D. Rojas;H. Solares;V. Baghmanyan;E. Belmont-Moreno;S. BenZvi;R. Blandford;C. Brisbois;K. Caballero-Mora;T. Capistrán;A. Carramiñana;S. Casanova;U. Cotti;S. León;E. D. L. Fuente;R. Hernández;B. Dingus;M. DuVernois;M. Durocher;J. C. Díaz-Vélez;R. Ellsworth;K. Engel;C. Espinoza;K. Fan;K. Fang;H. Fleischhack;N. Fraija;A. Galván-Gámez;D. García;J. García-González;F. Garfias;G. Giacinti;M. González;J. Goodman;J. P. Harding;S. Hernández;J. Hinton;B. Hona;D. Huang;F. Hueyotl-Zahuantitla;P. Hüntemeyer;A. Iriarte;A. Jardin-Blicq;V. Joshi;D. Kieda;A. Lara;William H. Lee;H. L. Vargas;J. Linnemann;A. Longinotti;G. Luis-Raya;J. Lundeen;K. Malone;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;M. Nisa;R. Noriega-Papaqui;L. Olivera-Nieto;N. Omodei;A. Peisker;Y. P. Araujo;E. Pérez-Pérez-E.-Pérez-Pérez-1431205495;Z. Ren;C. Rho;D. Rosa-González;E. Ruiz-Velasco;H. Salazar;F. Greus;A. Sandoval;Michael Schneider;H. Schoorlemmer;F. Serna;A. Smith;R. Springer;P. Surajbali;K. Tollefson;I. Torres;R. Torres-Escobedo;F. Ureña-Mena;T. Weisgarber;F. Werner;E. Willox;A. Zepeda;H. Zhou;C. D. León;J. Álvarez
中科院分区：
物理与天体物理1区
文献类型：
--
作者：
A. Abeysekara;A. Albert;R. Alfaro;C. Álvarez;J. Camacho;J. C. Arteaga-Velázquez;K. Arunbabu;D. Rojas;H. Solares;V. Baghmanyan;E. Belmont-Moreno;S. BenZvi;R. Blandford;C. Brisbois;K. Caballero-Mora;T. Capistrán;A. Carramiñana;S. Casanova;U. Cotti;S. León;E. D. L. Fuente;R. Hernández;B. Dingus;M. DuVernois;M. Durocher;J. C. Díaz-Vélez;R. Ellsworth;K. Engel;C. Espinoza;K. Fan;K. Fang;H. Fleischhack;N. Fraija;A. Galván-Gámez;D. García;J. García-González;F. Garfias;G. Giacinti;M. González;J. Goodman;J. P. Harding;S. Hernández;J. Hinton;B. Hona;D. Huang;F. Hueyotl-Zahuantitla;P. Hüntemeyer;A. Iriarte;A. Jardin-Blicq;V. Joshi;D. Kieda;A. Lara;William H. Lee;H. L. Vargas;J. Linnemann;A. Longinotti;G. Luis-Raya;J. Lundeen;K. Malone;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;M. Nisa;R. Noriega-Papaqui;L. Olivera-Nieto;N. Omodei;A. Peisker;Y. P. Araujo;E. Pérez-Pérez-E.-Pérez-Pérez-1431205495;Z. Ren;C. Rho;D. Rosa-González;E. Ruiz-Velasco;H. Salazar;F. Greus;A. Sandoval;Michael Schneider;H. Schoorlemmer;F. Serna;A. Smith;R. Springer;P. Surajbali;K. Tollefson;I. Torres;R. Torres-Escobedo;F. Ureña-Mena;T. Weisgarber;F. Werner;E. Willox;A. Zepeda;H. Zhou;C. D. León;J. Álvarez

文献摘要

被引文献

相似文献

已知能量高达几个PeV的宇宙射线在银河系内被加速。传统上，人们一直认为超新星遗迹是这些极高能宇宙射线的主要来源，但理论上很难将质子加速到PeV能量，并且在观测上根本没有证据表明遗迹是能量超过几十TeV的强子的来源。具有这些能量的质子的一个可能来源是银河系中心区域。在这里，我们报告了来自“天鹅茧”的1-100 TeV γ射线的观测结果，天鹅茧是一个围绕着大质量星星形成区域的超级气泡。这些γ射线可能是由10- 1，000 TeV的新加速宇宙射线产生的，这些宇宙射线来自封闭的恒星形成区天鹅座OB 2。到目前为止，人们还不知道这样的区域可以将粒子加速到这些能量。测得的通量可能来自强子相互作用。茧的光谱形状和发射轮廓从GeV到TeV的能量变化，这揭示了宇宙粒子的运输和历史活动的超级气泡。
Cosmic rays with energies up to a few PeV are known to be accelerated within the Milky Way,. Traditionally, it has been presumed that supernova remnants were the main source of these very-high-energy cosmic rays,, but theoretically it is difficult to accelerate protons to PeV energies,and observationally there simply is no evidence of the remnants being sources of hadrons with energies above a few tens of TeV,. One possible source of protons with those energies is the Galactic Centre region. Here, we report observations of 1–100 TeV γ rays coming from the ‘Cygnus Cocoon’, which is a superbubble that surrounds a region of massive star formation. These γ rays are likely produced by 10–1,000 TeV freshly accelerated cosmic rays that originate from the enclosed star-forming region Cyg OB2. Until now it was not known that such regions could accelerate particles to these energies. The measured flux likely originates from hadronic interactions. The spectral shape and the emission profile of the Cocoon changes from GeV to TeV energies, which reveals the transport of cosmic particles and historical activity in the superbubble.