Physics – Optics
Scientific paper
Feb 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001noao.prop...53b&link_type=abstract
NOAO Proposal ID #2001A-0053
Physics
Optics
Scientific paper
Understanding the formation and evolution of both galaxies and quasars are among the premier goals of extragalactic research. The current expectation is that the evolutionary histories of these two classes of objects are somehow intimately related; that is the (proto- )galaxy interactions that arise during hierarchical structure formation first created and then fueled the quasars. All of the empirical evidence supporting this belief, however, is for quasar systems at low redshift (z < 0.5) where we may be seeing special end-cases due to the evolved nature of the host galaxy. At the higher redshifts corresponding to the time when quasars were most abundant (z ~ 2), there have been no conclusive measurements. Yet this is the regime where the most compelling physical commonalities between quasars and their host galaxies arise. We, therefore, propose to remedy this situation by obtaining adaptive optics H-band observations using the Gemini North telescope with the Hokupa'a/QUIRC camera of two intrinsically luminous, high redshift quasars (z ~ 2) to both identify the morphologies of the proto-galaxies fueling the quasar and to also quantify their evolution with redshift by comparison to published, low redshift results. With this exploratory survey (which can currently only be done with Gemini Adaptive Optics), we will be able to, for the first time, uncover quasar host galaxies at the peak of the quasar era.
Brunner Robert J.
Storrie-Lombardi Lisa
Weymann Ray
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