Physics
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hst..prop.5765v&link_type=abstract
HST Proposal ID #5765
Physics
Hst Proposal Id #5765 Galaxies &Amp, Clusters Distant Galaxies
Scientific paper
During Cycle 1 we imaged 4C41.17, the most distant galaxy known, with the WFC. Its redshift of 3.8 corresponds to a relative lookback time of ~ 90% and must be close to the epoch at which the galaxies formed. The ultraviolet continuum was detected at high signal to noise. 30% of its flux comes from clumps on the scale of a few hundred parsec. We here propose to carry out an intensive study of this important object with the unaberrated HST using imaging (WFPC2) and spectroscopy (FOS). Our aims are 1) deep continuum imaging to study the morphology of 4C41.17 and possible neighboring cluster galaxies with much better sensitivity and resolution than is possible with our current Cycle 1 images, 2) Ly-a imaging, if possible with the Linear Ramp Filters, to study the Ly-a emission from 4C41.17 and its extensive halo, and 3) FOS spectros- copy of the three brightest clumps to obtain information on the sub- kiloparsec scale about the kinematics and the scale and nature of the absorption clouds which have recently been observed from the ground.
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