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We present a spectroscopic survey of Ly$\alpha$ emitters in the ExtendedGroth Strip (EGS) field, targeting the regime near the Epoch of Reionization.Using Keck/DEIMOS, we observed 947 high-$z$ candidates with photometricredshifts from 3 $< z_\text{phot} <$ 7 and down to an $H$-band (HST/WFC3 F160W)magnitude limit of < 27.5. Observations were taken over the course of 8 nights,with integration times ranging from 4 to 7.8 hours. Our survey secured 137unique redshifts, 126 of which are Ly$\alpha$ emitters at 2.8 $< z <$ 6.5 witha mean redshift of $\overline{z} = 4.3$. We provide a comprehensive redshiftcatalog for our targets, as well as the reduced one- and two- dimensionalspectra for each object. These observations will provide an important auxiliarydataset for the JWST Directors Discretionary Early Release Science (DD-ERS)program the Cosmic Evolution Early Release Science Survey (CEERS), whichrecently completed near- and mid-IR imaging and spectroscopy of galaxies in theEGS field.

Deeper than DEEP: A Spectroscopic Survey of $z>3$ Lyman-$\alpha$ Emitters in the Extended Groth Strip