TY - JOUR AU - Robert Fesen AU - Crystal Martin AU - J. Shull BT - The Astrophysical Journal DA - Jan-11-1992 DO - 10.1086/171951 PY - 1992 EP - 599 T2 - The Astrophysical Journal TI - The synchrotron bays of the Crab Nebula - A magnetic structure associated with a presupernova circumstellar disk UR - http://adsabs.harvard.edu/full/1992ApJ...399..599F VL - 399 SN - 0004-637X ER -