Performance of the stereoscopic system of the HEGRA imaging air Čerenkov telescopes: Monte Carlo simulations and observations

A. Konopelko; M. Hemberger; F. Aharonian; A. Daum; W. Hofmann; C. Köhler; H. Krawczynski; H. J. Völk; A. Akhperjanian; J. Barrio; K. Bernlöhr; H. Bojahr; J. Contreras; J. Cortina; T. Deckers; S. Denninghoff; J. Fernandez; V. Fonseca; J. Gonzalez; V. Haustein; G. Heinzelmann; G. Hermann; M. Heß; A. Heusler; H. Hohl; I. Holl; D. Horns; R. Kankanian; M. Kestel; J. Kettler; O. Kirstein; H. Kornmayer; D. Kranich; H. Lampeitl; A. Lindner; E. Lorenz; N. Magnussen; H. Meyer; R. Mirzoyan; H. Möller; A. Moralejo; L. Padilla; M. Panter; D. Petry; R. Plaga; A. Plyasheshnikov; J. Prahl; C. Prosch; G. Pühlhofer; G. Rauterberg; W. Rhode; A. Röhring; V. Sahakian; M. Samorski; J. Sanchez; D. Schmele; F. Schroeder; W. Stamm; B. Wiebel-Sooth; C. A. Wiedner; M. Willmer; H. Wirth

doi:10.1016/S0927-6505(98)00062-0

Performance of the stereoscopic system of the HEGRA imaging air Čerenkov telescopes: Monte Carlo simulations and observations

A. Konopelko
, M. Hemberger
, F. Aharonian
, A. Daum
, W. Hofmann
, C. Köhler
, H. Krawczynski
, H. J. Völk
, A. Akhperjanian
, J. Barrio
, K. Bernlöhr
, H. Bojahr
, J. Contreras
, J. Cortina
, T. Deckers
, S. Denninghoff
, J. Fernandez
, V. Fonseca
, J. Gonzalez
, V. Haustein

G. Heinzelmann, G. Hermann, M. Heß, A. Heusler, H. Hohl, I. Holl, D. Horns, R. Kankanian, M. Kestel, J. Kettler, O. Kirstein, H. Kornmayer, D. Kranich, H. Lampeitl, A. Lindner, E. Lorenz, N. Magnussen, H. Meyer, R. Mirzoyan, H. Möller, A. Moralejo, L. Padilla, M. Panter, D. Petry, R. Plaga, A. Plyasheshnikov, J. Prahl, C. Prosch, G. Pühlhofer, G. Rauterberg, W. Rhode, A. Röhring, V. Sahakian, M. Samorski, J. Sanchez, D. Schmele, F. Schroeder, W. Stamm, B. Wiebel-Sooth, C. A. Wiedner, M. Willmer, H. Wirth

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77 Scopus citations

Abstract

Based on the Monte Carlo simulations we have studied the performance of the HEGRA system of imaging air Čerenkov telescopes (IACTs) in its present configuration of 4 IACTs as well as in its future final configuration of 5 IACTs. Here we present the results on the basic characteristics of the IACT system which are used in the standard data analysis procedure, i.e., the collection areas, the detection rates, the angular resolution, the energy resolution, and the γ/hadron-separation efficiency. By comparing several key Monte Carlo predictions with experimental results it is possible to check the accuracy of the simulations. The Monte Carlo results concerning hadron-nuclear showers are tested with the recorded cosmic ray events and the results concerning photon-induced showers are tested with a large data sample of γ-rays observed from BL Lac object Mkn 501 during its high flaring activity in 1997. Summarizing the simulations and current observations we give the basic recommendations of using the instrument and the major values of its sensitivity.

Original language	English
Pages (from-to)	275-289
Number of pages	15
Journal	Astroparticle Physics
Volume	10
Issue number	4
DOIs	https://doi.org/10.1016/S0927-6505(98)00062-0
State	Published - May 1999

Keywords

Imaging air čerenkov technique
Very high energy gamma ray astronomy

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10.1016/S0927-6505(98)00062-0

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Konopelko, A., Hemberger, M., Aharonian, F., Daum, A., Hofmann, W., Köhler, C., Krawczynski, H., Völk, H. J., Akhperjanian, A., Barrio, J., Bernlöhr, K., Bojahr, H., Contreras, J., Cortina, J., Deckers, T., Denninghoff, S., Fernandez, J., Fonseca, V., Gonzalez, J., ... Wirth, H. (1999). Performance of the stereoscopic system of the HEGRA imaging air Čerenkov telescopes: Monte Carlo simulations and observations. Astroparticle Physics, 10(4), 275-289. https://doi.org/10.1016/S0927-6505(98)00062-0

@article{f564540a655246baa988305c4dc928b6,

title = "Performance of the stereoscopic system of the HEGRA imaging air {\v C}erenkov telescopes: Monte Carlo simulations and observations",

abstract = "Based on the Monte Carlo simulations we have studied the performance of the HEGRA system of imaging air {\v C}erenkov telescopes (IACTs) in its present configuration of 4 IACTs as well as in its future final configuration of 5 IACTs. Here we present the results on the basic characteristics of the IACT system which are used in the standard data analysis procedure, i.e., the collection areas, the detection rates, the angular resolution, the energy resolution, and the γ/hadron-separation efficiency. By comparing several key Monte Carlo predictions with experimental results it is possible to check the accuracy of the simulations. The Monte Carlo results concerning hadron-nuclear showers are tested with the recorded cosmic ray events and the results concerning photon-induced showers are tested with a large data sample of γ-rays observed from BL Lac object Mkn 501 during its high flaring activity in 1997. Summarizing the simulations and current observations we give the basic recommendations of using the instrument and the major values of its sensitivity.",

keywords = "Imaging air {\v c}erenkov technique, Very high energy gamma ray astronomy",

author = "A. Konopelko and M. Hemberger and F. Aharonian and A. Daum and W. Hofmann and C. K{\"o}hler and H. Krawczynski and V{\"o}lk, \{H. J.\} and A. Akhperjanian and J. Barrio and K. Bernl{\"o}hr and H. Bojahr and J. Contreras and J. Cortina and T. Deckers and S. Denninghoff and J. Fernandez and V. Fonseca and J. Gonzalez and V. Haustein and G. Heinzelmann and G. Hermann and M. He{\ss} and A. Heusler and H. Hohl and I. Holl and D. Horns and R. Kankanian and M. Kestel and J. Kettler and O. Kirstein and H. Kornmayer and D. Kranich and H. Lampeitl and A. Lindner and E. Lorenz and N. Magnussen and H. Meyer and R. Mirzoyan and H. M{\"o}ller and A. Moralejo and L. Padilla and M. Panter and D. Petry and R. Plaga and A. Plyasheshnikov and J. Prahl and C. Prosch and G. P{\"u}hlhofer and G. Rauterberg and W. Rhode and A. R{\"o}hring and V. Sahakian and M. Samorski and J. Sanchez and D. Schmele and F. Schroeder and W. Stamm and B. Wiebel-Sooth and Wiedner, \{C. A.\} and M. Willmer and H. Wirth",

year = "1999",

month = may,

doi = "10.1016/S0927-6505(98)00062-0",

language = "English",

volume = "10",

pages = "275--289",

journal = "Astroparticle Physics",

issn = "0927-6505",

number = "4",

}

Konopelko, A, Hemberger, M, Aharonian, F, Daum, A, Hofmann, W, Köhler, C, Krawczynski, H, Völk, HJ, Akhperjanian, A, Barrio, J, Bernlöhr, K, Bojahr, H, Contreras, J, Cortina, J, Deckers, T, Denninghoff, S, Fernandez, J, Fonseca, V, Gonzalez, J, Haustein, V, Heinzelmann, G, Hermann, G, Heß, M, Heusler, A, Hohl, H, Holl, I, Horns, D, Kankanian, R, Kestel, M, Kettler, J, Kirstein, O, Kornmayer, H, Kranich, D, Lampeitl, H, Lindner, A, Lorenz, E, Magnussen, N, Meyer, H, Mirzoyan, R, Möller, H, Moralejo, A, Padilla, L, Panter, M, Petry, D, Plaga, R, Plyasheshnikov, A, Prahl, J, Prosch, C, Pühlhofer, G, Rauterberg, G, Rhode, W, Röhring, A, Sahakian, V, Samorski, M, Sanchez, J, Schmele, D, Schroeder, F, Stamm, W, Wiebel-Sooth, B, Wiedner, CA, Willmer, M & Wirth, H 1999, 'Performance of the stereoscopic system of the HEGRA imaging air Čerenkov telescopes: Monte Carlo simulations and observations', Astroparticle Physics, vol. 10, no. 4, pp. 275-289. https://doi.org/10.1016/S0927-6505(98)00062-0

TY - JOUR

T1 - Performance of the stereoscopic system of the HEGRA imaging air Čerenkov telescopes

T2 - Monte Carlo simulations and observations

AU - Konopelko, A.

AU - Hemberger, M.

AU - Aharonian, F.

AU - Daum, A.

AU - Hofmann, W.

AU - Köhler, C.

AU - Krawczynski, H.

AU - Völk, H. J.

AU - Akhperjanian, A.

AU - Barrio, J.

AU - Bernlöhr, K.

AU - Bojahr, H.

AU - Contreras, J.

AU - Cortina, J.

AU - Deckers, T.

AU - Denninghoff, S.

AU - Fernandez, J.

AU - Fonseca, V.

AU - Gonzalez, J.

AU - Haustein, V.

AU - Heinzelmann, G.

AU - Hermann, G.

AU - Heß, M.

AU - Heusler, A.

AU - Hohl, H.

AU - Holl, I.

AU - Horns, D.

AU - Kankanian, R.

AU - Kestel, M.

AU - Kettler, J.

AU - Kirstein, O.

AU - Kornmayer, H.

AU - Kranich, D.

AU - Lampeitl, H.

AU - Lindner, A.

AU - Lorenz, E.

AU - Magnussen, N.

AU - Meyer, H.

AU - Mirzoyan, R.

AU - Möller, H.

AU - Moralejo, A.

AU - Padilla, L.

AU - Panter, M.

AU - Petry, D.

AU - Plaga, R.

AU - Plyasheshnikov, A.

AU - Prahl, J.

AU - Prosch, C.

AU - Pühlhofer, G.

AU - Rauterberg, G.

AU - Rhode, W.

AU - Röhring, A.

AU - Sahakian, V.

AU - Samorski, M.

AU - Sanchez, J.

AU - Schmele, D.

AU - Schroeder, F.

AU - Stamm, W.

AU - Wiebel-Sooth, B.

AU - Wiedner, C. A.

AU - Willmer, M.

AU - Wirth, H.

PY - 1999/5

Y1 - 1999/5

N2 - Based on the Monte Carlo simulations we have studied the performance of the HEGRA system of imaging air Čerenkov telescopes (IACTs) in its present configuration of 4 IACTs as well as in its future final configuration of 5 IACTs. Here we present the results on the basic characteristics of the IACT system which are used in the standard data analysis procedure, i.e., the collection areas, the detection rates, the angular resolution, the energy resolution, and the γ/hadron-separation efficiency. By comparing several key Monte Carlo predictions with experimental results it is possible to check the accuracy of the simulations. The Monte Carlo results concerning hadron-nuclear showers are tested with the recorded cosmic ray events and the results concerning photon-induced showers are tested with a large data sample of γ-rays observed from BL Lac object Mkn 501 during its high flaring activity in 1997. Summarizing the simulations and current observations we give the basic recommendations of using the instrument and the major values of its sensitivity.

AB - Based on the Monte Carlo simulations we have studied the performance of the HEGRA system of imaging air Čerenkov telescopes (IACTs) in its present configuration of 4 IACTs as well as in its future final configuration of 5 IACTs. Here we present the results on the basic characteristics of the IACT system which are used in the standard data analysis procedure, i.e., the collection areas, the detection rates, the angular resolution, the energy resolution, and the γ/hadron-separation efficiency. By comparing several key Monte Carlo predictions with experimental results it is possible to check the accuracy of the simulations. The Monte Carlo results concerning hadron-nuclear showers are tested with the recorded cosmic ray events and the results concerning photon-induced showers are tested with a large data sample of γ-rays observed from BL Lac object Mkn 501 during its high flaring activity in 1997. Summarizing the simulations and current observations we give the basic recommendations of using the instrument and the major values of its sensitivity.

KW - Imaging air čerenkov technique

KW - Very high energy gamma ray astronomy

UR - https://www.scopus.com/pages/publications/0033130333

U2 - 10.1016/S0927-6505(98)00062-0

DO - 10.1016/S0927-6505(98)00062-0

M3 - Article

AN - SCOPUS:0033130333

SN - 0927-6505

VL - 10

SP - 275

EP - 289

JO - Astroparticle Physics

JF - Astroparticle Physics

IS - 4

ER -

Performance of the stereoscopic system of the HEGRA imaging air Čerenkov telescopes: Monte Carlo simulations and observations

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Keywords

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