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https://hdl.handle.net/2440/37439
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Type: | Journal article |
Title: | Very high energy gamma rays from the composite SNR G 0.9+0.1 |
Author: | Aharonian, F. Akhperjanian, A. Aye, K. Bazer-Bachi, A. Beilicke, M. Benbow, W. Berge, D. Berghaus, P. Bernlohr, K. Boisson, C. Bolz, O. Borgmeier, C. Braun, I. Breitling, F. Brown, A. Bussons Gordo, J. Chadwick, P. Chounet, L. Cornils, R. Costamante, L. et al. |
Citation: | Astronomy and Astrophysics: a European journal, 2005; 432(2):L25-L29 |
Publisher: | E D P Sciences |
Issue Date: | 2005 |
ISSN: | 0004-6361 1432-0746 |
Statement of Responsibility: | F. Aharonian...G. Rowell...et al. |
Abstract: | Very high energy (>100 GeV) gamma-ray emission has been detected for the first time from the composite supernova remnant G 0.9+0.1 using the HESS instrument. The source is detected with a significance of ≈13σ, and a photon flux above 200 GeV of (5.7 ± 0.7 stat ± 1.2 sys) × 10 -12 cm -2 s -1, making it one of the weakest sources ever detected at TeV energies. The photon spectrum is compatible with a power law (dN/dE ∝ E Γ) with photon index Γ = 2.40 ± 0.11 stat ± 0.20 sys. The gamma-ray emission appears to originate in the plerionic core of the remnant, rather than the shell, and can be plausibly explained as inverse Compton scattering of relativistic electrons. © ESO 2005. |
Rights: | © The European Southern Observatory 2005 |
DOI: | 10.1051/0004-6361:200500022 |
Published version: | http://dx.doi.org/10.1051/0004-6361:200500022 |
Appears in Collections: | Aurora harvest Chemistry and Physics publications |
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