WFC Observations of NGC4319-MARKARIAN 205: High Resolution Morphology of a Galaxy-Quasar Association Displaying AN Anomalous Redshift

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Hst Proposal Id #4750

Scientific paper

This program involves use of the Wide Field Camera to image NGC 4319 and Mrk 205 in order to examine the morphology of this association. The purpose is to attempt to gain more information about the nature of the filamentary material located between this galaxy-quasar pair. Imaging will be done in two well calibrated filters, F555W and F785LP, in order to provide a good color base-line and spatial map of the spectral characteristics of the material surrounding Mrk 205. These will also be co-added to increase the S/N and increase the level of detail detected in the structure of the material surrounding the quasar. The Wide Field Camera has been chosen instead of the Planetary Camera on the basis of recommendation by image restoration experts at STScI because, despite its lower spatial resolution, the Wide Field Camera will offer a greater chance of detecting any bridging material which may be present due to the fact that there will be more integrated light per pixel in the WFC than the PC.

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