! Proposal 6519, submission 1 ! PI: Dr. Jeremy Walsh ! Received Mon Mar 11 09:03:38 EST 1996 ! From: vanorsow@stsci.edu ! Hubble Space Telescope Cycle 6 (1996) Phase II Proposal Template ! $Id: 6519,v 6.1 1996/12/09 20:37:41 pepsa Exp $ ! Hubble Space Telescope Cycle 6 (1996) Phase II Proposal Template ! $Id: 6519,v 6.1 1996/12/09 20:37:41 pepsa Exp $ ! ! Refer to the HST Phase II Proposal Instructions to fill this out ! ! Anything after a "!" is ignored, and may be deleted ! ! All keywords with multiple entries are comma delimited except the ! Visit_Requirements and Special_Requirements keywords which can be ! delimited with carriage returns or semi-colons, but not commas ! ! For help call your Program Coordinator: van Orsow ! Phone: 410-338-4568 , E-mail: vanorsow@stsci.edu ! ! This partially completed template was generated from a Phase I proposal. ! Name of Phase I Proposal: archive-0349.walsh.prop ! Date generated: Fri Dec 22 18:51:26 EST 1995 ! Proposal_Information ! Section 4 Title: Parallel high resolution imaging of diffuse objects in the Magellanic Clouds Proposal_Category: GO Scientific_Category: INTERSTELLAR MEDIUM Cycle: 6 Investigators PI_name: Dr. Jeremy Walsh PI_Institution: Space Telescope European Coordinating Facility CoI_Name: Dr. Marc Azzopardi CoI_Institution: Observatoire de Marseille Contact: ! Y or N (designate at most one contact) CoI_Name: Dr. You-Hua Chu CoI_Institution: University of Illinois Contact: ! Y or N (designate at most one contact) CoI_Name: Dr. Donald Garnett CoI_Institution: University of Minnesota Contact: ! Y or N (designate at most one contact) CoI_Name: Dr. Mohammad Heydari-Malayeri CoI_Institution: Institut d'Astrophysique Contact: ! Y or N (designate at most one contact) CoI_Name: Dr. Barry Lasker CoI_Institution: Space Telescope Science Institute Contact: ! Y or N (designate at most one contact) CoI_Name: Prof. James Lequeux CoI_Institution: Observatoire de Paris, Meudon Contact: ! Y or N (designate at most one contact) CoI_Name: Prof. John Meaburn CoI_Institution: University of Manchester Contact: ! Y or N (designate at most one contact) CoI_Name: Dr. George Meylan CoI_Institution: European Southern Observatory Contact: ! Y or N (designate at most one contact) CoI_Name: Dr. Nicole Meyssonnier CoI_Institution: Observatoire de Marseille Contact: ! Y or N (designate at most one contact) Abstract: ! Free format text (please update) The Magellanic Clouds, because of their well-determined distance and small extinction, allow an unprecedented opportunity to observe many ISM phenomena occurring in a whole galaxy. The HST resolution (0.1" = 0.025 pc) offers detail hitherto poorly studied in the extragalactic context on the morphology and spatial relationships in various ISM processes associated with the evolution of Population I and Population II systems. This long term (11 cycles) parallel program exploits these opportunities by obtaining WFPC2 images of appropriate targets that are accessible at the same time as primary pointings. The number of priority parallel observations per Cycle is estimated at ~20; and our intent is to accumulate a significant archive of Magellanic Cloud direct images over the life of the program. The parallel targets, to be specified in crafting rules executed as part of the Phase II planning of each HST Cycle, will include (or search for) compact H II regions and young clusters, proto-stellar and maser regions, reflection nebulae, Herbig-Haro objects, stellar ejecta, SNR and wind-driven shells, shells, planetary nebulae and Very Low Excitation nebulae. The observations will be primarily in the Balmer lines and the stronger forbidden lines, with supplemental continuum images. Questions ! Free format text (please update) Observing_Description: Pure parallel images of a variety of diffuse nebular objects in the Small and Large Magellanic Clouds are to be obtained with WFPC2. The primary pointings of HST in the Magellanic Clouds will provide the basis for this project. For each primary (FOS or FOC) pointing listed in the approved primary target list of a given Cycle, an appropriate annulus around the target is examined (against catalogs and direct images) for the kinds of nebular and stellar targets described in the scientific justification. Beginning in Cycle 5, we have, with STScI help, succesfully translated this strategy into a set of crafting rules for efficiently identifying parallel opportunities that can be attached to the FOS or FOC pointings; and the improved productivity of this program, beginning in Cycle 5, attests to the efficacy of this technique. If an object of interest occurs within the WFPC2 field at an accessible roll angle, emission line images in narrow bands and continuum images in broad band filters will be requested. (The default roll-angle must be used in our object selection but we delimit ranges of roll-angles of particular advantage to our program dependent on the pointing position.) The targets of interest cover a broad range - to ensure a strong probability of obtaining images - from proto- stellar regions, through HII regions, supernova remnants and shells, to evolved objects around high mass stars to planetary nebulae. Depending on the object and the exposure time of the primary pointing, a variety of emission line and or continuum images will be taken. Example objects are given in the Observing Summary. These are not program targets as the target selection is entirely dictated by the primary pointings. The program relies heavily on the primary pointings which clearly will differ from cycle to cycle. However we do not expect our methods or proposed targets to change substantially from year to year. On the basis of planning in previous cycles, there were about 30 hours of FOS and FOC pointings in the Magellanic Clouds, from which we selected the most promising fields (eliminating short primary exposures), giving >=20 hours of parallel imaging. Similar estimates hold for further cycles dependant on the pattern of primary observations. Over the envisaged lifetime of this program, a potentially valuable archive of a few hundred images of Magellanic Cloud nebulae will accrue. In Cycles 2-4 we had many parallel opportunities but only a few observations (Six images in Cycle 2, four in Cycle 3 and two in Cycle 4). However, beginning in Cycle 5, the improvements in scheduling procedures, together with the repaired HST PSF, have already enabled deep images of two fields around SN1987A to be obtained; the data is currently under analysis. We anticipate that a larger number of parallel images of the Magellanic Clouds will result, leading to new scientific results. Real_Time_Justification: Calibration_Justification: ! Move appropriate text from Real_Time_Justification Additional_Comments: Generic_Targets ! Section 5.3 Target_Number:1 Target_Name:PAR Description:EXT-CLUSTER Criteria:RA= 05H 38M 52.8S, DEC = -69D 06' 43.0", R=5D Flux: Comments: ! This is a template for a single visit containing a single exposure ! Repeat exposure and visit blocks as needed Visits ! Section 6 Visit_Number:1 Visit_Requirements: ! Section 7.1 ! Uncomment or copy visit level special requirements needed ! Most of these requirements (including ORIENT) will limit scheduling ! PCS MODE [Fine | Gyro] ! GUIDing TOLerance ! DROP TO GYRO IF NECESSARY [NO REACQuisition] ! ORIENTation TO ! ORIENTation TO FROM ! ORIENTation TO FROM NOMINAL ! SAME ORIENTation AS ! CVZ PARallel ! SCHEDulability ! AFTER [BY [TO ]] ! AFTER ! BEFORE ! BETWEEN AND ! 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