Suzaku Observation of HESS J 1825-137; Discovery of an unusually extended X-ray pulsar wind nebula of PSR J1826-1334 Uchiyama, H. ; Matsumoto, H. ; Tsuru, T. G. ; Koyama, K. Abstract Publication: The X-ray Universe 2008 Pub Date: July 2008 Bibcode: 2008xru..confE..95U