O. de Jager, C. Venter, M. Vorster (NWU, S.A.) North-West University, Potchefstroom South Africa. Fundamental Problems: Pulsars to their Winds. NS & GB – 30 March to 5 April: Cairo & Alexandria. Primary acceleration fields (unscreened by pair production)
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North-West University, Potchefstroom
South AfricaFundamental Problems: Pulsars to their Winds
NS & GB – 30 March to 5 April:
Cairo & Alexandria
Venter, de Jager & Clapson (2009), ApJL N=100 cluster ms pulsars in 47 Tuc with random P,Pdot.
Kes 75: MWL studies of SNR N=100 cluster ms pulsars in 47 Tuc with random P,Pdot.Total number of leptons: Ne>8x1048 Integrated number of Goldreich Julian pairs: NGJ=1.6x1044Pair production multiplicity: 2.5x105 > M > 2.4x104
Measurements of the sigma parameter and pulsar conversion efficiency in from Vela compact nebula from X-rays and MHD principles. How does that square up with HESS observations?
Solving 1D particle transport equation downstream including synchrotron & adiabatic losses. Synchronize grid with X-ray resolution.Calculate synchrotron spectra from lepton spectra
Model & observed spectral evolution vs. radius. Constrain to freshly injected compact nebula (30 years) – avoid outer regions of reverse shock.
HESS detection of Vela X (Aharonian et al. 2006)