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Title: Search for pulsed VHE gamma-ray emission from young pulsars with HESS
Authors: Berge, D.
Schlenker, S.
Eifert, T.
Hinton, J. A.
Reimer, O.
Rowell, G.
Schmidt, F.
Tluczykont, M.
Aharonian, F.
Benbow, W.
Berge, D.
Füßling, M.
Nedbal, D.
Rob, L.
Reimer, O.
Schlickeiser, R.
Schröder, R.
Shalchi, A.
Spanier, F.
Steenkamp, R.
Khélifi, B.
Espigat, P.
Costamante, L.
Masterson, C.
Kerschhaggl, M.
Carrigan, S.
Tluczykont, M.
Costamante, L.
Masterson, C.
Tluczykont, M.
Manchester, R. N.
Costamante, L.
Glicenstein, J. F.
Kosack, K.
Egberts, K.
Funk, S.
Hauser, D.
Lohse, T.
Hermann, G.
Masterson, C.
Panter, M.
Rowell, G.
Van Eldik C
Goret, P.
Schlenker, S.
Raubenheimer, B. C.
Volk, H. J.
Akhperjanian, A. G.
Sahakian, V.
Bazer-Bachi, A. R.
Borrel, V.
Marcowith, A.
Olive, J. -. P.
Beilicke, M.
Moulin, E.
Cornils, R.
Heinzelmann, G.
Venter, C.
Schmidt, F.
Raue, M.
Ripken, J.
Bernlöhr, K.
Eifert, T.
Funk, S.
Schwanke, U.
Rolland, L.
Boisson, C.
Martin, J. M.
Sol, H.
Chounet, L. -. M.
Brion, E.
Brown, A. M.
Chadwick, P. M.
Dickinson, H. J.
Hadjichristidis, C.
Degrange, B.
Bernlöhr, K.
Latham, I. J.
Le Gallou R
Lemière, A.
McComb, T. J. L.
Nolan, S. J.
Noutsos, A.
Orford, K. J.
Osborne, J. L.
Rayner, S. M.
Spangler, D.
Hinton, J. A.
Dubus, G.
Ward, M.
Büsching, I.
Holleran, M.
Maurin, G.
De Jager OC
Fontaine, G.
Giebels, B.
Khélifi, B.
Lemoine-Goumard, M.
Pühlhofer, G.
Pita, S.
Hoffmann, A.
Superina, G.
Tluczykont, M.
Coignet, G.
Lamanna, G.
Ranchon, S.
Rosier-Lees, S.
Vialle, J. P.
Djannati-Ataï, A.
Schwemmer, S.
Espigat, P.
Lemière, A.
Horns, D.
Punch, M.
Maurin, G.
Pita, S.
Punch, M.
Terrier, R.
Djannati-Ataï, A.
Terrier, R.
Tam, P. H.
Drury, L. O.
Emmanoulopoulos, D.
Ferrero, E.
Kendziorra, E.
Hauser, M.
Wagner, S. J.
Farnier, C.
Feinstein, F.
Fiasson, A.
Santangelo, A.
Hinton, J. A.
Gallant, Y. A.
Jacholkowska, A.
Bolz, O.
Komin, N.
Marcowith, A.
Moulin, E.
Vasileiadis, G.
Glück, B.
Stegmann, C.
Boutelier, T.
Hofmann, W.
Schwarzburg, S.
Henri, G.
Pelletier, G.
Petrucci, P. -. O.
Braun, I.
Saugé, L.
Martineau-Huynh, O.
De Naurois M
Tavernet, J. -. P.
Vincent, P.
Hoppe, S.
Bühler, R.
First Published: May-2007
Publisher: EDP Sciences for European Southern Observatory (ESO)
Citation: Astronomy & Astrophysics, 2007, 466 (2), pp. 543-554
Abstract: Aims.We present the results of a search for pulsed very-high-energy (VHE) $\gamma$-ray emission from young pulsars using data taken with the HESS imaging atmospheric Cherenkov telescope system. Methods.Data on eleven pulsars, selected according to their spin-down luminosity relative to distance, are searched for $\gamma$-ray signals with periodicity at the respective pulsar spin period. Special analysis efforts were made to improve the sensitivity in the 100 GeV $\gamma$-ray energy domain in an attempt to reduce the gap between satellite and ground-based $\gamma$-ray instruments. Results.No significant evidence for pulsed emission is found in any data set. Differential upper limits on pulsed energy flux are determined for all selected pulsars in the approximate $\gamma$-ray energy range between 100 GeV and 50 TeV, using different limit determination methods, testing a wide range of possible pulsar light curves and energy spectra. Conclusions.The limits derived here imply that the magnetospheric VHE $\gamma$-ray production efficiency in young pulsars is less than 10-4 of the pulsar spin-down luminosity, requiring spectral turnovers for the high-energy emission of four established $\gamma$-ray pulsars, and constrain the inverse Compton radiation component predicted by several outer gap models.
DOI Link: 10.1051/0004-6361:20066737
ISSN: 0004-6361
eISSN: 1432-0746
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2007 ESO. Reproduced with permission from Astronomy & Astrophysics, © ESO.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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