Computer Science
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991hst..prop.2695d&link_type=abstract
HST Proposal ID #2695
Computer Science
Hst Proposal Id #2695
Scientific paper
The galaxy companion to the quasar PKS 1614+051 at z = 3.21 is one of the most distant non-QSO objects known. Ground-based observations suggest that the quasar and its galaxy companion are interacting, and that the galaxy may harbor an active nucleus. This putative interaction occurs at an epoch when quasars first appear in large numbers, and we may be witnessing an event responsible for the turn-on of the quasar activity in this system. The redshift of this system implies that it is less than 20% the current age of the universe, giving us a unique opportunity to study the star formation history and stellar population of a young and possibly forming galaxy, or a compact group of galaxies. High-resolution imaging with the HST will reveal the nature of the interaction between the companion and the quasar, and allow us to address basic questions of the nature and evolution of galaxies at extremely high redshifts, and the origins of galactic activity in the early universe. We propose imaging in the band containing the Ly alpha emission line, as well as in a broad-band line-free band to sample the stellar continuum.
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