Search for point sources of gamma radiation above 15 TeV with the HEGRA AIROBICC array

F. Aharonian; A. Akhperjanian; J. A. Barrio; K. Bernlöhr; H. Börst; H. Bojahr; O. Bolz; J. L. Contreras; J. Cortina; S. Denninghoff; V. Fonseca; H. J. Gebauer; J. González; N. Götting; G. Heinzelmann; G. Hermann; A. Heusler; W. Hofmann; D. Horns; I. Jung; R. Kankanyan; M. Kestel; J. Kettler; A. Kohnle; A. Konopelko; H. Kornmayer; D. Kranich; H. Krawczynski; H. Lampeitl; M. López; E. Lorenz; F. Lucarelli; N. Magnussen; O. Mang; H. Meyer; R. Mirzoyan; A. Moralejo; E. Oña; L. Padilla; M. Panter; R. Plaga; A. Plyasheshnikov; J. Prahl; G. Pühlhofer; G. Rauterberg; A. Röhring; W. Rhode; G. Rowell; V. Sahakian; M. Samorski; M. Schilling; D. Schmele; F. Schröder; I. Sevilla; M. Siems; W. Stamm; M. Tluczykont; H. J. Völk; C. A. Wiedner; W. Wittek

doi:10.1051/0004-6361:20020686

Search for point sources of gamma radiation above 15 TeV with the HEGRA AIROBICC array

F. Aharonian, A. Akhperjanian, J. A. Barrio, K. Bernlöhr, H. Börst, H. Bojahr, O. Bolz, J. L. Contreras, J. Cortina, S. Denninghoff, V. Fonseca, H. J. Gebauer, J. González, N. Götting, G. Heinzelmann, G. Hermann, A. Heusler, W. Hofmann, D. Horns, I. JungR. Kankanyan, M. Kestel, J. Kettler, A. Kohnle, A. Konopelko, H. Kornmayer, D. Kranich, H. Krawczynski, H. Lampeitl, M. López, E. Lorenz, F. Lucarelli, N. Magnussen, O. Mang, H. Meyer, R. Mirzoyan, A. Moralejo, E. Oña, L. Padilla, M. Panter, R. Plaga, A. Plyasheshnikov, J. Prahl, G. Pühlhofer, G. Rauterberg, A. Röhring, W. Rhode, G. Rowell, V. Sahakian, M. Samorski, M. Schilling, D. Schmele, F. Schröder, I. Sevilla, M. Siems, W. Stamm, M. Tluczykont, H. J. Völk, C. A. Wiedner, W. Wittek

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Abstract

A search for potential point sources of very high energy gamma rays has been carried out on the data taken simultaneously by the HEGRA AIROBICC and Scintillator arrays from August 1994 to March 2000. The list of sought sources includes supernova remnants, pulsars, AGNs and binary systems. The energy threshold is around 15 TeV. For the Crab Nebula, a modest excess of 2.5 standard deviations above the cosmic ray background has been observed. Flux upper limits (at 90% c.l.) of around 1.3 times the flux of the Crab Nebula are obtained, in average, for the candidate sources. A different search procedure has been used for an all-sky search which yields absolute flux upper limits between 4 and 9 crabs depending on declination, in the band from δ = 0 to δ = 60°.

Original language	English
Pages (from-to)	39-46
Number of pages	8
Journal	Astronomy and Astrophysics
Volume	390
Issue number	1
DOIs	https://doi.org/10.1051/0004-6361:20020686
State	Published - Jul 2002

Keywords

Gamma rays: observations

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10.1051/0004-6361:20020686

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Aharonian, F., Akhperjanian, A., Barrio, J. A., Bernlöhr, K., Börst, H., Bojahr, H., Bolz, O., Contreras, J. L., Cortina, J., Denninghoff, S., Fonseca, V., Gebauer, H. J., González, J., Götting, N., Heinzelmann, G., Hermann, G., Heusler, A., Hofmann, W., Horns, D., ... Wittek, W. (2002). Search for point sources of gamma radiation above 15 TeV with the HEGRA AIROBICC array. Astronomy and Astrophysics, 390(1), 39-46. https://doi.org/10.1051/0004-6361:20020686

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title = "Search for point sources of gamma radiation above 15 TeV with the HEGRA AIROBICC array",

abstract = "A search for potential point sources of very high energy gamma rays has been carried out on the data taken simultaneously by the HEGRA AIROBICC and Scintillator arrays from August 1994 to March 2000. The list of sought sources includes supernova remnants, pulsars, AGNs and binary systems. The energy threshold is around 15 TeV. For the Crab Nebula, a modest excess of 2.5 standard deviations above the cosmic ray background has been observed. Flux upper limits (at 90% c.l.) of around 1.3 times the flux of the Crab Nebula are obtained, in average, for the candidate sources. A different search procedure has been used for an all-sky search which yields absolute flux upper limits between 4 and 9 crabs depending on declination, in the band from δ = 0 to δ = 60°.",

keywords = "Gamma rays: observations",

author = "F. Aharonian and A. Akhperjanian and Barrio, {J. A.} and K. Bernl{\"o}hr and H. B{\"o}rst and H. Bojahr and O. Bolz and Contreras, {J. L.} and J. Cortina and S. Denninghoff and V. Fonseca and Gebauer, {H. J.} and J. Gonz{\'a}lez and N. G{\"o}tting and G. Heinzelmann and G. Hermann and A. Heusler and W. Hofmann and D. Horns and I. Jung and R. Kankanyan and M. Kestel and J. Kettler and A. Kohnle and A. Konopelko and H. Kornmayer and D. Kranich and H. Krawczynski and H. Lampeitl and M. L{\'o}pez and E. Lorenz and F. Lucarelli and N. Magnussen and O. Mang and H. Meyer and R. Mirzoyan and A. Moralejo and E. O{\~n}a and L. Padilla and M. Panter and R. Plaga and A. Plyasheshnikov and J. Prahl and G. P{\"u}hlhofer and G. Rauterberg and A. R{\"o}hring and W. Rhode and G. Rowell and V. Sahakian and M. Samorski and M. Schilling and D. Schmele and F. Schr{\"o}der and I. Sevilla and M. Siems and W. Stamm and M. Tluczykont and V{\"o}lk, {H. J.} and Wiedner, {C. A.} and W. Wittek",

year = "2002",

month = jul,

doi = "10.1051/0004-6361:20020686",

language = "English",

volume = "390",

pages = "39--46",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

number = "1",

}

Aharonian, F, Akhperjanian, A, Barrio, JA, Bernlöhr, K, Börst, H, Bojahr, H, Bolz, O, Contreras, JL, Cortina, J, Denninghoff, S, Fonseca, V, Gebauer, HJ, González, J, Götting, N, Heinzelmann, G, Hermann, G, Heusler, A, Hofmann, W, Horns, D, Jung, I, Kankanyan, R, Kestel, M, Kettler, J, Kohnle, A, Konopelko, A, Kornmayer, H, Kranich, D, Krawczynski, H, Lampeitl, H, López, M, Lorenz, E, Lucarelli, F, Magnussen, N, Mang, O, Meyer, H, Mirzoyan, R, Moralejo, A, Oña, E, Padilla, L, Panter, M, Plaga, R, Plyasheshnikov, A, Prahl, J, Pühlhofer, G, Rauterberg, G, Röhring, A, Rhode, W, Rowell, G, Sahakian, V, Samorski, M, Schilling, M, Schmele, D, Schröder, F, Sevilla, I, Siems, M, Stamm, W, Tluczykont, M, Völk, HJ, Wiedner, CA & Wittek, W 2002, 'Search for point sources of gamma radiation above 15 TeV with the HEGRA AIROBICC array', Astronomy and Astrophysics, vol. 390, no. 1, pp. 39-46. https://doi.org/10.1051/0004-6361:20020686

TY - JOUR

T1 - Search for point sources of gamma radiation above 15 TeV with the HEGRA AIROBICC array

AU - Aharonian, F.

AU - Akhperjanian, A.

AU - Barrio, J. A.

AU - Bernlöhr, K.

AU - Börst, H.

AU - Bojahr, H.

AU - Bolz, O.

AU - Contreras, J. L.

AU - Cortina, J.

AU - Denninghoff, S.

AU - Fonseca, V.

AU - Gebauer, H. J.

AU - González, J.

AU - Götting, N.

AU - Heinzelmann, G.

AU - Hermann, G.

AU - Heusler, A.

AU - Hofmann, W.

AU - Horns, D.

AU - Jung, I.

AU - Kankanyan, R.

AU - Kestel, M.

AU - Kettler, J.

AU - Kohnle, A.

AU - Konopelko, A.

AU - Kornmayer, H.

AU - Kranich, D.

AU - Krawczynski, H.

AU - Lampeitl, H.

AU - López, M.

AU - Lorenz, E.

AU - Lucarelli, F.

AU - Magnussen, N.

AU - Mang, O.

AU - Meyer, H.

AU - Mirzoyan, R.

AU - Moralejo, A.

AU - Oña, E.

AU - Padilla, L.

AU - Panter, M.

AU - Plaga, R.

AU - Plyasheshnikov, A.

AU - Prahl, J.

AU - Pühlhofer, G.

AU - Rauterberg, G.

AU - Röhring, A.

AU - Rhode, W.

AU - Rowell, G.

AU - Sahakian, V.

AU - Samorski, M.

AU - Schilling, M.

AU - Schmele, D.

AU - Schröder, F.

AU - Sevilla, I.

AU - Siems, M.

AU - Stamm, W.

AU - Tluczykont, M.

AU - Völk, H. J.

AU - Wiedner, C. A.

AU - Wittek, W.

PY - 2002/7

Y1 - 2002/7

N2 - A search for potential point sources of very high energy gamma rays has been carried out on the data taken simultaneously by the HEGRA AIROBICC and Scintillator arrays from August 1994 to March 2000. The list of sought sources includes supernova remnants, pulsars, AGNs and binary systems. The energy threshold is around 15 TeV. For the Crab Nebula, a modest excess of 2.5 standard deviations above the cosmic ray background has been observed. Flux upper limits (at 90% c.l.) of around 1.3 times the flux of the Crab Nebula are obtained, in average, for the candidate sources. A different search procedure has been used for an all-sky search which yields absolute flux upper limits between 4 and 9 crabs depending on declination, in the band from δ = 0 to δ = 60°.

AB - A search for potential point sources of very high energy gamma rays has been carried out on the data taken simultaneously by the HEGRA AIROBICC and Scintillator arrays from August 1994 to March 2000. The list of sought sources includes supernova remnants, pulsars, AGNs and binary systems. The energy threshold is around 15 TeV. For the Crab Nebula, a modest excess of 2.5 standard deviations above the cosmic ray background has been observed. Flux upper limits (at 90% c.l.) of around 1.3 times the flux of the Crab Nebula are obtained, in average, for the candidate sources. A different search procedure has been used for an all-sky search which yields absolute flux upper limits between 4 and 9 crabs depending on declination, in the band from δ = 0 to δ = 60°.

KW - Gamma rays: observations

UR - http://www.scopus.com/inward/record.url?scp=0036647675&partnerID=8YFLogxK

U2 - 10.1051/0004-6361:20020686

DO - 10.1051/0004-6361:20020686

M3 - Article

AN - SCOPUS:0036647675

SN - 0004-6361

VL - 390

SP - 39

EP - 46

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 1

ER -

Search for point sources of gamma radiation above 15 TeV with the HEGRA AIROBICC array

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Keywords

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