Search for Very-high-energy Emission from Gamma-Ray Bursts Using the First 18 Months of Data from the HAWC Gamma-Ray Observatory

Search for Very-high-energy Emission from Gamma-Ray Bursts Using the First 18 Months of Data from the HAWC Gamma-Ray Observatory
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DOI：
10.3847/1538-4357/aa756f
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发表时间：
2017-05
期刊：
The Astrophysical Journal
影响因子：
--
通讯作者：
R. Alfaro;C. Álvarez;J. Álvarez;R. Arceo;J. C. Arteaga-Vel'azquez;D. Rojas;H. Solares;A. Barber;N. Bautista-Elivar;A. Becerril;E. Belmont-Moreno;S. BenZvi;A. Bernal;J. Braun;C. Brisbois;K. Caballero-Mora;T. Capistr'an;A. Carramiñana;S. Casanova;M. Castillo;U. Cotti;J. Cotzomi;S. C. Deleón;E. D. L. Fuente;C. D. León;T. DeYoung;R. D. Hernandez;B. Dingus;M. DuVernois;J. C. D'iaz-V'elez;R. Ellsworth;K. Engel;D. Fiorino;N. Fraija;J. A. Garc'ia-Gonz'alez;F. Garfias;M. Gerhardt;A. G. Muñoz;M. Gonz'alez;J. Goodman;Z. Hampel-Arias;J. P. Harding;A. Hernández-Almada;S. Hernández;B. Hona;C. Hui;P. Hüntemeyer;A. Iriarte;A. Jardin-Blicq;V. Joshi;S. Kaufmann;D. Kieda;R. Lauer;W. Lee;D. Lennarz;H. L. Vargas;J. Linnemann;A. Longinotti;G. Raya;R. Luna-Garc'ia;R. López-Coto;K. Malone;S. Marinelli;O. Martinez;I. Martinez-Castellanos;J. Mart'inez-Castro;H. Mart'inez-Huerta;J. Matthews;P. Miranda-Romagnoli;E. Moreno;M. Mostaf'a;L. Nellen;M. Newbold;R. Noriega-Papaqui;R. Pelayo;E. G. P'erez-P'erez-E.-G.-P'erez-P'erez-1382196238;J. Pretz;Z. Ren;C. Rho;C. Rivière;D. Rosa-González;M. Rosenberg;E. Ruiz-Velasco;H. Salazar;F. Greus;A. Sandoval;Michael Schneider;H. Schoorlemmer;G. Sinnis;A. Smith;R. Springer;P. Surajbali;I. Taboada;O. Tibolla;K. Tollefson;I. Torres;T. Ukwatta;G. Vianello;T. Weisgarber;S. Westerhoff;J. Wood;T. Yapici;P. Younk;A. Zepeda;H. Zhou
R. Alfaro;C. Álvarez;J. Álvarez;R. Arceo;J. C. Arteaga-Vel'azquez;D. Rojas;H. Solares;A. Barber;N. Bautista-Elivar;A. Becerril;E. Belmont-Moreno;S. BenZvi;A. Bernal;J. Braun;C. Brisbois;K. Caballero-Mora;T. Capistr'an;A. Carramiñana;S. Casanova;M. Castillo;U. Cotti;J. Cotzomi;S. C. Deleón;E. D. L. Fuente;C. D. León;T. DeYoung;R. D. Hernandez;B. Dingus;M. DuVernois;J. C. D'iaz-V'elez;R. Ellsworth;K. Engel;D. Fiorino;N. Fraija;J. A. Garc'ia-Gonz'alez;F. Garfias;M. Gerhardt;A. G. Muñoz;M. Gonz'alez;J. Goodman;Z. Hampel-Arias;J. P. Harding;A. Hernández-Almada;S. Hernández;B. Hona;C. Hui;P. Hüntemeyer;A. Iriarte;A. Jardin-Blicq;V. Joshi;S. Kaufmann;D. Kieda;R. Lauer;W. Lee;D. Lennarz;H. L. Vargas;J. Linnemann;A. Longinotti;G. Raya;R. Luna-Garc'ia;R. López-Coto;K. Malone;S. Marinelli;O. Martinez;I. Martinez-Castellanos;J. Mart'inez-Castro;H. Mart'inez-Huerta;J. Matthews;P. Miranda-Romagnoli;E. Moreno;M. Mostaf'a;L. Nellen;M. Newbold;R. Noriega-Papaqui;R. Pelayo;E. G. P'erez-P'erez-E.-G.-P'erez-P'erez-1382196238;J. Pretz;Z. Ren;C. Rho;C. Rivière;D. Rosa-González;M. Rosenberg;E. Ruiz-Velasco;H. Salazar;F. Greus;A. Sandoval;Michael Schneider;H. Schoorlemmer;G. Sinnis;A. Smith;R. Springer;P. Surajbali;I. Taboada;O. Tibolla;K. Tollefson;I. Torres;T. Ukwatta;G. Vianello;T. Weisgarber;S. Westerhoff;J. Wood;T. Yapici;P. Younk;A. Zepeda;H. Zhou
中科院分区：
其他
文献类型：
--
作者：
R. Alfaro;C. Álvarez;J. Álvarez;R. Arceo;J. C. Arteaga-Vel'azquez;D. Rojas;H. Solares;A. Barber;N. Bautista-Elivar;A. Becerril;E. Belmont-Moreno;S. BenZvi;A. Bernal;J. Braun;C. Brisbois;K. Caballero-Mora;T. Capistr'an;A. Carramiñana;S. Casanova;M. Castillo;U. Cotti;J. Cotzomi;S. C. Deleón;E. D. L. Fuente;C. D. León;T. DeYoung;R. D. Hernandez;B. Dingus;M. DuVernois;J. C. D'iaz-V'elez;R. Ellsworth;K. Engel;D. Fiorino;N. Fraija;J. A. Garc'ia-Gonz'alez;F. Garfias;M. Gerhardt;A. G. Muñoz;M. Gonz'alez;J. Goodman;Z. Hampel-Arias;J. P. Harding;A. Hernández-Almada;S. Hernández;B. Hona;C. Hui;P. Hüntemeyer;A. Iriarte;A. Jardin-Blicq;V. Joshi;S. Kaufmann;D. Kieda;R. Lauer;W. Lee;D. Lennarz;H. L. Vargas;J. Linnemann;A. Longinotti;G. Raya;R. Luna-Garc'ia;R. López-Coto;K. Malone;S. Marinelli;O. Martinez;I. Martinez-Castellanos;J. Mart'inez-Castro;H. Mart'inez-Huerta;J. Matthews;P. Miranda-Romagnoli;E. Moreno;M. Mostaf'a;L. Nellen;M. Newbold;R. Noriega-Papaqui;R. Pelayo;E. G. P'erez-P'erez-E.-G.-P'erez-P'erez-1382196238;J. Pretz;Z. Ren;C. Rho;C. Rivière;D. Rosa-González;M. Rosenberg;E. Ruiz-Velasco;H. Salazar;F. Greus;A. Sandoval;Michael Schneider;H. Schoorlemmer;G. Sinnis;A. Smith;R. Springer;P. Surajbali;I. Taboada;O. Tibolla;K. Tollefson;I. Torres;T. Ukwatta;G. Vianello;T. Weisgarber;S. Westerhoff;J. Wood;T. Yapici;P. Younk;A. Zepeda;H. Zhou

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高海拔水切伦科夫（HAWC）伽马射线观测站是一个广泛的空气簇射探测器，在墨西哥中部运行，最近完成了头两年的全面运行。如果对于像GRB 130427 A这样的红移为0.34的爆发，其高能分量遵循指数为1.66的幂律，高能分量扩展到更高的能量，除了来自河外背景光的衰减之外没有截止，HAWC将观测到峰值能量为300 GeV的伽马射线。本文报道了由Swift和Fermi探测到的64个伽玛暴的HAWC观测结果，其中包括3个同样由大面积望远镜（Fermi-LAT）探测到的伽玛暴。一个ON/OFF分析方法，在观测到的光变曲线在keV-MeV的能量，也在扩展的时间尺度上的时间尺度上搜索。对于所有的伽玛暴和时间尺度，没有发现统计上显着的计数和上限的伽玛射线的数量和伽玛射线通量的计算。GRB 170206 A是费米卫星上的伽马射线暴监测器（Fermi-GBM）探测到的第三亮的短GRB，也是LAT探测到的，它发生在非常接近天顶的地方。LAT测量既不能排除同步辐射自康普顿分量的存在，也不能限制其光谱。相反，HAWC的上限限制预期的截止在一个额外的高能量的组件是小于合理的假设的能量和红移的爆发。
The High Altitude Water Cherenkov (HAWC) Gamma-ray Observatory is an extensive air shower detector operating in central Mexico that has recently completed its first two years of full operations. If for a burst like GRB 130427A at a redshift of 0.34 and a high-energy component following a power law with index 1.66, the high-energy component is extended to higher energies with no cutoff other than that from extragalactic background light attenuation, HAWC would observe gamma-rays with a peak energy of ∼300 GeV. This paper reports the results of HAWC observations of 64 gamma-ray bursts (GRBs) detected by Swift and Fermi, including 3 GRBs that were also detected by the Large Area Telescope (Fermi-LAT). An ON/OFF analysis method is employed, searching on the timescale given by the observed light curve at keV–MeV energies and also on extended timescales. For all GRBs and timescales, no statistically significant excess of counts is found and upper limits on the number of gamma-rays and the gamma-ray flux are calculated. GRB 170206A, the third brightest short GRB detected by the Gamma-ray Burst Monitor on board the Fermi satellite (Fermi-GBM) and also detected by the LAT, occurred very close to zenith. The LAT measurements can neither exclude the presence of a synchrotron self-Compton component nor constrain its spectrum. Instead, the HAWC upper limits constrain the expected cutoff in an additional high-energy component to be less than for reasonable assumptions about the energetics and redshift of the burst.