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A search for gamma-ray emission from the Galactic plane in the longitude range between 37° and 43°

Using the HEGRA system of imaging atmospheric Cherenkov telescopes, a - region of the Galactic plane (-10o < b < 5o, - 38o < l < 43o) was surveyed for TeV - gamma-ray emission, both from point sources and of diffuse nature. The - region covered includes 15 known pulsars, 6 known superno...

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Main Authors: Aharonian, Felix A. (Author) , Akhperjanian, A. G. (Author) , Barrio, J. A. (Author) , Bernlöhr, Konrad (Author) , Bolz, O. (Author) , Hermann, G. (Author) , Heusler, A. (Author) , Hofmann, Werner (Author) , Konopelko, Alexander (Author) , Kornmeyer, H. (Author) , Kranich, D. (Author) , Krawczynski, Henric (Author) , Lampeitl, Hubert (Author) , Padilla, L. (Author) , Panter, M. (Author) , Plaga, R. (Author) , Plyasheshnikov, A. (Author) , Prahl, J. (Author) , Pühlhofer, Gerd (Author) , Rhode, W. (Author) , Röhring, A. (Author) , Rowell, G. P. (Author) , Sahakian, V. (Author) , Samorski, M. (Author) , Schilling, M. (Author) , Schröder, F. (Author) , Siems, M. (Author) , Stamm, W. (Author) , Tluczykont, M. (Author) , Völk, Heinrich J. (Author) , Wiedner, C. A. (Author) , Wittek, W. (Author)
Format: Article (Journal)
Language:English
Published: September 2001
In: Astronomy and astrophysics
Year: 2001, Volume: 375, Pages: 1008-1017
ISSN:1432-0746
DOI:10.1051/0004-6361:20010898
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1051/0004-6361:20010898
Verlag, lizenzpflichtig, Volltext: http://adsabs.harvard.edu/abs/2001A%26A...375.1008A
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Author Notes:F.A. Aharonian, A.G. Akhperjanian, J.A. Barrio, K. Bernlöhr, O. Bolz, H. Börst, H. Bojahr, J.L. Contreras, J. Cortina, S. Denninghoff, V. Fonseca, J.C. Gonzalez, N. Götting, G. Heinzelmann, G. Hermann, A. Heusler, W. Hofmann, D. Horns, A. Ibarra, C. Iserlohe, I. Jung, R. Kankanyan, M. Kestel, J. Kettler, A. Kohnle, A. Konopelko, H. Kornmeyer, D. Kranich, H. Krawczynski, H. Lampeitl, E. Lorenz, F. Lucarelli, N. Magnussen, O. Mang, H. Meyer, R. Mirzoyan, A. Moralejo, L. Padilla, M. Panter, R. Plaga, A. Plyasheshnikov, J. Prahl, G. Pühlhofer, W. Rhode, A. Röhring, G.P. Rowell, V. Sahakian, M. Samorski, M. Schilling, F. Schröder, M. Siems, W. Stamm, M. Tluczykont, H.J. Völk, C.A. Wiedner, W. Wittek
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Summary:Using the HEGRA system of imaging atmospheric Cherenkov telescopes, a - region of the Galactic plane (-10o < b < 5o, - 38o < l < 43o) was surveyed for TeV - gamma-ray emission, both from point sources and of diffuse nature. The - region covered includes 15 known pulsars, 6 known supernova remnants - (SNR) and one unidentified EGRET source. No evidence for emission from - point sources was detected; upper limits are typically below 0.1 Crab - units for the flux above 1 TeV. For the diffuse gamma-ray flux from the - Galactic plane, an upper limit of 6.1*E-15 ph cm-2 - s-1 sr-1 MeV-1 was derived under the - assumption that the spatial distribution measured by the EGRET - instrument extends to the TeV regime. This upper flux limit is a factor - of about 1.5 larger than the flux expected from the ensemble of - gamma-ray unresolved Galactic cosmic ray sources.
Item Description:Gesehen am 09.12.2020
Physical Description:Online Resource
ISSN:1432-0746
DOI:10.1051/0004-6361:20010898

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