Parallel high resolution imaging of diffuse objects in the Magellanic Clouds

Details Parallel high resolution imaging of diffuse objects in the Magellanic Clouds Parallel high resolution imaging of diffuse objects in the Magellanic Clouds

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7516w&link_type=abstract

HST Proposal ID #7516

Computer Science

Hst Proposal Id #7516 Interstellar Matter

Scientific paper

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 details, 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, and planetary nebulae. The observations will be primarily in the Balmer lines and the stronger forbidden lines, with supplemental continuum images. The photometric data on the stars will also be exploited for stellar population studies.

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