****************************************************** PR # 11003 We propose to detect x-ray activity of protostar candidate IRAS 05338 -0624, which might be buried under dense molecular cloud L1641 and is associated with bipolar out flow. Because of large column density, it has been difficult to observe this kind of protostar with EINSTEIN or ROSAT observatory, but ASCA can do observe it and might answer when X-ray activity starts in such early stage of protostar. Since X-ray activities deeply related to stellar rotation and magnetic field,this observation will give much information on a role of magnetic field in a star formation mechanism. ******************************************************