AAS Meeting #194 - Chicago, Illinois, May/June 1999
Session 91. Next Generation Space Telescope
Display, Thursday, June 3, 1999, 9:20am-4:00pm, Southwest Exhibit Hall

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[91.02] Scientific Rationale for the Canadian NGST Visible Imager

L. Drissen (Universite Laval), P. Hickson (University of British Columbia), J. Hutchings (Dominion Astrophysical Observatory), S. Lilly (University of Toronto), R. Murowinski, P. Stetson (Dominion Astrophysical Observatory)

While NGST will be optimized for observing in the infrared, it also offers tremendous scientific opportunities in the visible regime (0.5 - 1 \mum). This poster presents some of the science drivers for a visible imager on board NGST. Potential targets include: young starbursts and AGNs at high redshift (z=3-8); gravitational lensing by clusters of galaxies; white dwarfs in the Galactic halo and globular clusters; RR Lyrae stars in the M81 group; the lower end of the IMF in Local Group starburst clusters; low surface brightness galaxies; the environment of nearby (z<0.2) supernovae; and trans-neptunian objects. We also briefly describe the current status of the studies on the Canadian NGST Visible Imager, which is one of three instruments proposed as a Canadian contribution to NGST.

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