The Third Data Release of the KODIAQ Survey
  We present and make publicly available the third data release (DR3) of the
Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ) survey.
KODIAQ DR3 consists of a fully-reduced sample of 727 quasars at 0.1 < z < 6.4
observed with ESI at moderate resolution (4000 < R < 10000). DR3 contains 872
spectra available in flux calibrated form, representing a sum total exposure
time of approximately 2.8 megaseconds. These co-added spectra arise from a
total of 2753 individual exposures of quasars taken from the Keck Observatory
Archive (KOA) in raw form and uniformly processed using a data reduction
package made available through the XIDL distribution. DR3 is publicly available
to the community, housed as a higher level science product at the KOA and in
the igmspec database.
