Measurement of the radial distribution of Cherenkov light generated by TeV γ-ray air showers

被引：11

作者：

Aharonian, FA

Akhperjanian, AG

Barrio, JA

Bernlöhr, K

Bojahr, H

Contreras, JL

Cortina, J

Daum, A

Deckers, T

Fonseca, V

Frass, A

Gonzalez, JC

Heinzelmann, G

Hemberger, M

Hermann, G

Hess, M

Heusler, A

Hofmann, W

Hohl, H

Holl, I

Horns, D

Ibarra, I

Kankanyan, R

Kestel, M

Kirstein, O

Köhler, C

Konopelko, A

Kornmayer, H

Kranich, D

Krawczynski, H

Lampeitl, H

Lindner, A

Lorenz, E

Magnussen, N

Meyer, H

Mirzoyan, R

Moralejo, A

Padilla, L

Panter, M

Petry, D

Plaga, R

Prahl, J

Prosch, C

Pühlhofer, G

Rauterberg, G

Rhode, W

Röhring, A

Samorski, M

Schmele, D

Schröder, F

机构：

[1] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany

[2] Max Planck Inst Phys, D-80805 Munich, Germany

[3] Univ Complutense Madrid, Fac Ciencias Fis, E-28040 Madrid, Spain

[4] Univ Kiel, Inst Kernphys, D-24118 Kiel, Germany

[5] BUGH Wuppertal, Fachbereich Phys, D-42119 Wuppertal, Germany

[6] Univ Hamburg, Inst Expt Phys 2, D-22761 Hamburg, Germany

来源：

ASTROPARTICLE PHYSICS | 1999年 / 10卷 / 01期

关键词：

D O I：

10.1016/S0927-6505(98)00039-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using air showers induced by TeV gamma-rays from Mrk 501, the radial distribution of Cherenkov light is investigated. The shower geometry is reconstructed from the stereoscopic shower images obtained with the telescopes of the HEGRA IACT system. With the core position known to better than 10 m, the light yield as a function of the distance to the shower axis is derived by comparing event-by-event the image intensities measured in the different telescopes. We observe a change in the shape of the light pool with zenith angle, an a slow variation with show cr energy. Data are well reproduced by Monte Carlo air shower simulations. (C) 1999 Elsevier Science B.V.

引用

页码：21 / 29

页数：9

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