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Spectral break of energetic pulsar wind nebulae detected with wideband X-ray observations

Terada, Yukikatsu; Uchida, Hiroyuki; Bamba, Aya +4 more

Pulsar wind nebulae (PWNe) are one of the most energetic galactic sources with bright emissions from radio waves to very high-energy gamma-rays. We perform wideband X-ray spectroscopy of four energetic PWNe, N 157 B, PSR J1813-1749, PSR J1400-6325, and G21.5-0.9, with the Suzaku, Chandra, NuSTAR, and Hitomi observatories. A significant spectral br…