English

The NIRSpec Wide GTO Survey

Astrophysics of Galaxies 2024-10-04 v2

Abstract

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>1z>1 at both low- and high-resolution (R100R\approx100 and 2700) for a total of 105 hours. With 31 pointings covering \approx320 arcmin2^2 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 (zmed=2.0z_{\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.

Keywords

Cite

@article{arxiv.2403.05506,
  title  = {The NIRSpec Wide GTO Survey},
  author = {Michael V. Maseda and Anna de Graaff and Marijn Franx and Hans-Walter Rix and Stefano Carniani and Isaac Laseter and Ugne Dudzeviciute and Tim Rawle and Eleonora Parlanti and Santiago Arribas and Andrew J. Bunker and Alex J. Cameron and Stephane Charlot and Mirko Curti and Francesco D'Eugenio and Gareth C. Jones and Nimisha Kumari and Roberto Maiolino and Hannah Uebler and Aayush Saxena and Renske Smit and Chris Willott and Joris Witstok},
  journal= {arXiv preprint arXiv:2403.05506},
  year   = {2024}
}

Comments

Published in A&A. Data for pointings in AEGIS available for download at https://archive.stsci.edu/hlsp/wide (https://archive.stsci.edu/hlsps/wide/download_scripts/hlsp_wide_jwst_nirspec_all_multi_v1.0_spec-download.sh)

R2 v1 2026-06-28T15:13:53.953Z