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

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

doi:10.1051/0004-6361:20010898

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

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

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

Using the HEGRA system of imaging atmospheric Cherenkov telescopes, a region of the Galactic plane (-10° < b < 5°, 38° < l < 43°) 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 × 10^-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.

Original language	English
Pages (from-to)	1008-1017
Number of pages	10
Journal	Astronomy and Astrophysics
Volume	375
Issue number	3
DOIs	https://doi.org/10.1051/0004-6361:20010898
State	Published - 2001

Keywords

Gamma-rays:observations
ISM: cosmic rays

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10.1051/0004-6361:20010898

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Aharonian, F. A., Akhperjanian, A. G., Barrio, J. A., Bernlöhr, K., Bolz, O., Börst, H., Bojahr, H., Contreras, J. L., Cortina, J., Denninghoff, S., Fonseca, V., Gonzalez, J. C., Götting, N., Heinzelmann, G., Hermann, G., Heusler, A., Hofmann, W., Horns, D., Ibarra, A., ... Wittek, W. (2001). A search for gamma-ray emission from the Galactic plane in the longitude range between 37° and 43°. Astronomy and Astrophysics, 375(3), 1008-1017. https://doi.org/10.1051/0004-6361:20010898

@article{5c49047025784b7cbab6947649cd3a18,

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

abstract = "Using the HEGRA system of imaging atmospheric Cherenkov telescopes, a region of the Galactic plane (-10° < b < 5°, 38° < l < 43°) 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 × 10-15 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.",

keywords = "Gamma-rays:observations, ISM: cosmic rays",

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

year = "2001",

doi = "10.1051/0004-6361:20010898",

language = "English",

volume = "375",

pages = "1008--1017",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

number = "3",

}

Aharonian, FA, Akhperjanian, AG, Barrio, JA, Bernlöhr, K, Bolz, O, Börst, H, Bojahr, H, Contreras, JL, Cortina, J, Denninghoff, S, Fonseca, V, Gonzalez, JC, Götting, N, Heinzelmann, G, Hermann, G, Heusler, A, Hofmann, W, Horns, D, Ibarra, A, Iserlohe, C, Jung, I, Kankanyan, R, Kestel, M, Kettler, J, Kohnle, A, Konopelko, A, Kornmeyer, H, Kranich, D, Krawczynski, H, Lampeitl, H, Lorenz, E, Lucarelli, F, Magnussen, N, Mang, O, Meyer, H, Mirzoyan, R, Moralejo, A, Padilla, L, Panter, M, Plaga, R, Plyasheshnikov, A, Prahl, J, Pühlhofer, G, Rhode, W, Röhring, A, Rowell, GP, Sahakian, V, Samorski, M, Schilling, M, Schröder, F, Siems, M, Stamm, W, Tluczykont, M, Völk, HJ, Wiedner, CA & Wittek, W 2001, 'A search for gamma-ray emission from the Galactic plane in the longitude range between 37° and 43°', Astronomy and Astrophysics, vol. 375, no. 3, pp. 1008-1017. https://doi.org/10.1051/0004-6361:20010898

TY - JOUR

T1 - A search for gamma-ray emission from the Galactic plane in the longitude range between 37° and 43°

AU - Aharonian, F. A.

AU - Akhperjanian, A. G.

AU - Barrio, J. A.

AU - Bernlöhr, K.

AU - Bolz, O.

AU - Börst, H.

AU - Bojahr, H.

AU - Contreras, J. L.

AU - Cortina, J.

AU - Denninghoff, S.

AU - Fonseca, V.

AU - Gonzalez, J. C.

AU - Götting, N.

AU - Heinzelmann, G.

AU - Hermann, G.

AU - Heusler, A.

AU - Hofmann, W.

AU - Horns, D.

AU - Ibarra, A.

AU - Iserlohe, C.

AU - Jung, I.

AU - Kankanyan, R.

AU - Kestel, M.

AU - Kettler, J.

AU - Kohnle, A.

AU - Konopelko, A.

AU - Kornmeyer, H.

AU - Kranich, D.

AU - Krawczynski, H.

AU - Lampeitl, H.

AU - Lorenz, E.

AU - Lucarelli, F.

AU - Magnussen, N.

AU - Mang, O.

AU - Meyer, H.

AU - Mirzoyan, R.

AU - Moralejo, A.

AU - Padilla, L.

AU - Panter, M.

AU - Plaga, R.

AU - Plyasheshnikov, A.

AU - Prahl, J.

AU - Pühlhofer, G.

AU - Rhode, W.

AU - Röhring, A.

AU - Rowell, G. P.

AU - Sahakian, V.

AU - Samorski, M.

AU - Schilling, M.

AU - Schröder, F.

AU - Siems, M.

AU - Stamm, W.

AU - Tluczykont, M.

AU - Völk, H. J.

AU - Wiedner, C. A.

AU - Wittek, W.

PY - 2001

Y1 - 2001

N2 - Using the HEGRA system of imaging atmospheric Cherenkov telescopes, a region of the Galactic plane (-10° < b < 5°, 38° < l < 43°) 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 × 10-15 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.

AB - Using the HEGRA system of imaging atmospheric Cherenkov telescopes, a region of the Galactic plane (-10° < b < 5°, 38° < l < 43°) 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 × 10-15 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.

KW - Gamma-rays:observations

KW - ISM: cosmic rays

UR - https://www.scopus.com/pages/publications/0035466641

U2 - 10.1051/0004-6361:20010898

DO - 10.1051/0004-6361:20010898

M3 - Article

AN - SCOPUS:0035466641

SN - 0004-6361

VL - 375

SP - 1008

EP - 1017

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 3

ER -

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

Abstract

Keywords

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