The NIRSpec Wide GTO Survey

Maseda, MV ORCID: 0000-0003-0695-4414, De Graaff, A ORCID: 0000-0002-2380-9801, Franx, M ORCID: 0000-0002-8871-3026, Rix, HW, Carniani, S, Laseter, I, Dudzevičiūtė, U, Rawle, T ORCID: 0000-0002-7028-5588, Parlanti, E ORCID: 0000-0002-7392-7814, Arribas, S, Bunker, AJ ORCID: 0000-0002-8651-9879, Cameron, AJ, Charlot, S ORCID: 0000-0003-3458-2275, Curti, M ORCID: 0000-0002-2678-2560, D'eugenio, F, Jones, GC ORCID: 0000-0002-0267-9024, Kumari, N ORCID: 0000-0002-5320-2568, Maiolino, R, Übler, H, Saxena, A ORCID: 0000-0001-5333-9970 et al (2024) The NIRSpec Wide GTO Survey. Astronomy & Astrophysics, 689. ISSN 0004-6361

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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 μm). 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 ≈ 100 and 2700) for a total of 105 hours. With 31 pointings covering ≈320 arcmin2 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 probing 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 or slitless grism redshift, and predicted Hα flux tracing the bulk of the galaxy population at cosmic noon (zmed = 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.

Item Type:	Article
Uncontrolled Keywords:	0201 Astronomical and Space Sciences; Astronomy & Astrophysics
Subjects:	Q Science > QB Astronomy Q Science > QC Physics
Divisions:	Astrophysics Research Institute
Publisher:	EDP Sciences
Date of acceptance:	21 May 2024
Date of first compliant Open Access:	4 October 2024
Date Deposited:	04 Oct 2024 12:18
Last Modified:	04 Jul 2025 08:15
DOI or ID number:	10.1051/0004-6361/202449914
URI:	https://researchonline.ljmu.ac.uk/id/eprint/24404

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