Please use this identifier to cite or link to this item:
Title: Discovery of extended VHE gamma-ray emission from the asymmetric pulsar wind nebula in MSH 15-52 with HESS
Authors: Aharonian, F.
Akhperjanian, A. G.
Aye, K. M.
Bazer-Bachi, A. R.
Beilicke, M.
Benbow, W.
Berge, D.
Berghaus, P.
Bernlohr, K.
Boisson, C.
Bolz, O.
Braun, I.
Breitling, F.
Brown, A. M.
Gordo, J. B.
Chadwick, P. M.
Chounet, L. M.
Cornils, R.
Costamante, L.
Degrange, B.
Djannati-Atai, A.
Drury, L. O.
Dubus, G.
Emmanoulopoulos, D.
Espigat, P.
Feinstein, F.
Fleury, P.
Fontaine, G.
Fuchs, Y.
Funk, S.
Gallant, Y. A.
Giebels, B.
Gillessen, S.
Glicenstein, J. F.
Goret, P.
Hadjichristidis, C.
Hauser, M.
Heinzelmann, G.
Henri, G.
Hermann, G.
Hinton, J. A.
Hofmann, W.
Holleran, M.
Horns, D.
de Jager O. C.
Khelifi, B.
Komin, N.
Konopelko, A.
Latham, IJ.
Le Gallou R.
Lemiere, A.
Lemoine-Goumard, M.
Leroy, N.
Lohse, T.
Martineau-Huynh, O.
Marcowith, A.
Masterson, C.
McComb, T. J. L.
de Naurois M.
Nolan, S. J.
Noutsos, A.
Orford, K. J.
Osborne, J. L.
Ouchrif, M.
Panter, M.
Pelletier, G.
Pita, S.
Puhlhofer, G.
Punch, M.
Raubenheimer, B. C.
Raue, M.
Raux, J.
Rayner, S. M.
Redondo, I.
Reimer, A.
Reimer, O.
Ripken, J.
Rob, L.
Rolland, L.
Rowell, G.
Sahakian, V.
Sauge, L.
Schlenker, S.
Schlickeiser, R.
Schuster, C.
Schwanke, U.
Siewert, M.
Sol, H.
Steenkamp, R.
Stegmann, C.
Tavernet, J. P.
Terrier, R.
Theoret, C. G.
Tluczykont, M.
Vasileiadis, G.
Venter, C.
Vincent, P.
Volk, H. J.
Wagner, S. J.
First Published: May-2005
Publisher: EDP Sciences for European Southern Observatory (ESO)
Citation: Astronomy & Astrophysics, 2005, 435 (1), pp. L17-L20
Abstract: The Supernova Remnant MSH 15-52 has been observed in very high energy (VHE) $\gamma$-rays using the HESS 4-telescope array located in Namibia. A $\gamma$-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 40 TeV can be fitted by a power law with photon index $\Gamma=2.27\pm0.03_{\textrm {\scriptsize\,stat}}\pm 0.20_{\textrm{\scriptsize\,syst}}$. The detected emission can be plausibly explained by inverse Compton scattering of accelerated relativistic electrons with soft photons.
DOI Link: 10.1051/0004-6361:200500105
ISSN: 0004-6361
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2005 ESO. Reproduced with permission from Astronomy & Astrophysics, © ESO.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

Files in This Item:
File Description SizeFormat 
aahc021.pdfPublished (publisher PDF)274.09 kBAdobe PDFView/Open

Items in LRA are protected by copyright, with all rights reserved, unless otherwise indicated.