Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/37612
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Type: | Journal article |
Title: | Discovery of extended VHE gamma-ray emission from the asymmetric pulsar wind nebula in MSH 15-52 with H.E.S.S. |
Author: | Aharonian, F. Akhperjanian, A. Aye, K. Bazer-Bachi, A. Beilicke, M. Benbow, W. Berge, D. Berghaus, P. Bernlohr, K. Bolz, O. Boisson, C. Glicenstein, J. Breitling, F. Brown, A. Bussons Gordo, J. Chadwick, P. Braun, I. Chounet, L. Cornils, R. Costamante, L. et al. |
Citation: | Astronomy and Astrophysics: a European journal, 2005; 435(1):L17-L20 |
Publisher: | E D P Sciences |
Issue Date: | 2005 |
ISSN: | 0004-6361 1432-0746 |
Statement of Responsibility: | F. A. Aharonian ... G. P. Rowell ... et al. |
Abstract: | The Supernova Remnant MSH 15-52 has been observed in very high energy (VHE) γ-rays using the HESS 4-telescope array located in Namibia. A γ-ray signal is detected at the 25 sigma level during an exposure of 22.1 h live time. The image reveals an elliptically shaped emission region around the pulsar PSR B1509-58, with semi-major axis ∼ 6′ in the NW-SE direction and semi-minor axis ∼ 2′. This morphology coincides with the diffuse pulsar wind nebula as observed at X-ray energies by ROSAT. The overall energy spectrum from 280 GeV up to 40TeV can be fitted by a power law with photon index Γ = 2.27 ±0.03stat ±0.20syst. The detected emission can be plausibly explained by inverse Compton scattering of accelerated relativistic electrons with soft photons. © ESO 2005. |
Rights: | © The European Southern Observatory 2005 |
DOI: | 10.1051/0004-6361:200500105 |
Published version: | http://dx.doi.org/10.1051/0004-6361:200500105 |
Appears in Collections: | Aurora harvest 6 Physics publications |
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hdl_37612.pdf | Published version | 342.87 kB | Adobe PDF | View/Open |
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