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The NIRSpec Wide GTO Survey
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Paper
The NIRSpec Wide GTO Survey
2024
Overview
The Near-infrared Spectrograph (NIRSpec) on the James Webb Space Telescope is uniquely suited to studying galaxies in the distant Universe with its combination of multi-object capabilities and sensitivity over a large range in wavelength (0.6-5.3 microns). Here we present the NIRSpec Wide survey, part of the NIRSpec Instrument Science Team's Guaranteed Time Observations, using NIRSpec's microshutter array to obtain spectra of more than 3200 galaxies at \\(z>1\\) at both low- and high-resolution (\\(R\\approx100\\) and 2700) for a total of 105 hours. With 31 pointings covering \\(\\approx\\)320 arcmin\\(^2\\) across the five CANDELS fields with exquisite ancillary photometry from the Hubble Space Telescope, the NIRSpec Wide survey represents a fast and efficient way of using JWST to probe galaxies in the early Universe. Pointing centers are determined to maximize the observability of the rarest, high-value sources. Subsequently, the microshutter configurations are optimized to observe the maximum number of \"census\" galaxies with a selection function based primarily on HST/F160W magnitude, photometric/slitless grism redshift, and predicted \\ha\\ flux tracing the bulk of the galaxy population at cosmic noon (\\(z_{\\rm med}=2.0\\)). We present details on the survey strategy, the target selection, an outline of the motivating science cases, and discuss upcoming public data releases to the community.
Publisher
Cornell University Library, arXiv.org
Subject
