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SF2A-2006: 26ème Semaine de l'Astrophysique Française, Paris : France (2006)
Multi-wavelength pulsars study : Long-term timing of XMM, HESS and GLAST sources with the Nancay radiotelescope
G. Theureau1, I. Cognard2, D. Smith3, N. Webb4, Y. Gallant5

We present here the current Nançay observing program gathering the pulsar french community around the radio follow-up of X- and gamma-ray pulsars for the building of a complete multi-wavelength sample. The goal of this project is double : 1) provide strong constraints on the physics and emission mechanisms of pulsars , 2) guarantee the success of pulsar harvest at high energy by providing good and contemporaneous ephemerides for folding the few gamma and X-ray photons . The community is well involved in the last generation of gamma-ray and X-ray detectors and the availability of the NRT and its dedicated backend BON represents a very good opportunity for acquiring the necessary and complementary radio data.
1 :  GEPI - Galaxies, Etoiles, Physique, Instrumentation
2 :  LPCE - Laboratoire de physique et chimie de l'environnement
3 :  CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
4 :  CESR - Centre d'étude spatiale des rayonnements
5 :  LPTA - Laboratoire de Physique Théorique et Astroparticules
Physique/Astrophysique/Cosmologie et astrophysique extra-galactique

Planète et Univers/Astrophysique
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