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   61113
   We propose to observe radio galaxy 4C73.08 with giant radio lobes
   morphology. ASCA's new method of measuring magnetic fields of radio
   lobes through detecting inverse-Compton X-rays has made a remarkable
   success. According to this method, we need not assume energy
   equipartition between the fields and particles to obtain the magnetic
   field strength. This source has no apparent radio core with no knots or
   hot spots. In addition to these characteristics, radio polarization map
   of the galaxy has been obtained. Thus, by comparing with the radio
   results, we can expect ASCA to bring us a new aspect of figuring out
   the magnetic field structure of the radio galaxy.
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