تقرير
KASCADE-Grande Limits on the Isotropic Diffuse Gamma-Ray Flux between 100 TeV and 1 EeV
| العنوان: | KASCADE-Grande Limits on the Isotropic Diffuse Gamma-Ray Flux between 100 TeV and 1 EeV |
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| المؤلفون: | Collaboration, KASCADE-Grande, Apel, W. D., Arteaga-Velázquez, J. C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Feng, Z., Fuhrmann, D., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Huege, T., Kampert, K. -H., Kang, D., Klages, H. O., Link, K., Łuczak, P., Mathes, H. J., Mayer, H. J., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., Zabierowski, J. |
| سنة النشر: | 2017 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | KASCADE and KASCADE-Grande were multi-detector installations to measure individual air showers of cosmic rays at ultra-high energy. Based on data sets measured by KASCADE and KASCADE-Grande, 90% C.L. upper limits to the flux of gamma-rays in the primary cosmic ray flux are determined in an energy range of ${10}^{14} - {10}^{18}$ eV. The analysis is performed by selecting air showers with a low muon content as expected for gamma-ray-induced showers compared to air showers induced by energetic nuclei. The best upper limit of the fraction of gamma-rays to the total cosmic ray flux is obtained at $3.7 \times {10}^{15}$ eV with $1.1 \times {10}^{-5}$. Translated to an absolute gamma-ray flux this sets constraints on some fundamental astrophysical models, such as the distance of sources for at least one of the IceCube neutrino excess models. Comment: Published in The Astrophysical Journal, Volume 848, Number 1. Posted on: October 5, 2017 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3847/1538-4357/aa8bb7 |
| URL الوصول: | http://arxiv.org/abs/1710.02889 |
| رقم الأكسشن: | edsarx.1710.02889 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3847/1538-4357/aa8bb7 |
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