8005( 1) - 04/16/98 14:15 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 8005 Version: 1 Check-in Date: 16-Apr-1998 14:12:07 1.Proposal Title: Untangling a Cloud--Blast-Wave Collision in the Cygnus Loop ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle AR 7 ------------------------------------------------------------------------------------ 4. Investigators Contact? PI: James R. Graham University of California at Berkeley CoI: Nancy A. Levenson New Mexico State University, Las Cruces N ------------------------------------------------------------------------------------ 5. Abstract The proximity and brightness of the Cygnus Loop supernova remnant make it an outstanding candidate for detailed investigation of shock processes in astrophysical environments. We propose to analyze archival WFPC2 emission line images of a known encounter between the supernova blast wave and an interstellar cloud in order to understand the physical conditions and their evolution on scales of gas- dynamical significance. We will answer key astrophysical ------------------------------------------------------------------------------------ Data Distribution Media: ELECTRONIC Blocking Factor: 10 Ship To: PI_Address Ship Via: Email: ------------------------------------------------------------------------------------ 8005( 1) - 04/16/98 14:15 - [ 2] Summary Form for Proposal 8005 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category AR ------------------------------------------------------------------------------------------------------------------------------------