The GLASS-JWST Early Release Science Program. I. Survey Design and Release Plans

By T. Treu, G. Roberts-Borsani, M. Bradač, G. Brammer, A. Fontana, A. Henry, C. Mason, T. Morishita, L. Pentericci, X. Wang and 36 more. Astrophysical Journal, 2022

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The GLASS-JWST Early Release Science (hereafter GLASS-JWST-ERS) Program will obtain and make publicly available the deepest extragalactic data of the ERS campaign. It is primarily designed to address two key science questions, namely, “what sources ionized the universe and when?” and “how do baryons cycle through galaxies?”, while also enabling a broad variety of first look scientific investigations. In primary mode, it will obtain NIRISS and NIRSpec spectroscopy of galaxies lensed by the foreground Hubble Frontier Field cluster, Abell 2744. In parallel, it will use NIRCam to observe two fields that are offset from the cluster center, where lensing magnification is negligible, and which can thus be effectively considered blank fields. In order to prepare the community for access to this unprecedented data, we describe the scientific rationale, the survey design (including target selection and observational setups), and present pre-commissioning estimates of the expected sensitivity. In addition, we describe the planned public releases of high-level data products, for use by the wider astronomical community.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/bd1e62aa86a1af2fdf08c62f44fdb4de3da73795

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Citations in the corpus

A Comprehensive Study of Galaxies at z ∼ 9–16 Found in the Early JWST Data: Ultraviolet Luminosity Functions and Cosmic Star Formation History at the Pre-reionization Epoch (2022, methodology): “…releases the director’s discretionary early release science (ERS) data, which include NIRCam, NIRSpec, and NIRISS data taken by the ERS programs of the Cosmic Evolution Early Release Science (CEERS; Finkelstein et al. 2017, 2022c) and GLASS JWST Early Release Science (GLASS; Treu et al. 2022).”
The James Webb Space Telescope Mission (2023, methodology): “GLASS (Treu et al. 2022) will observe A2744 with NIRSpec multi-object spectroscopy and NIRISS widefield slitless spectroscopy, and will also create a parallel deep field with NIRCam imaging.”
Early Results from GLASS-JWST. III. Galaxy Candidates at z ∼9–15 (2022, methodology): “In this paper we present the search for LBG candidates at z∼9–15 in the first NIRCam imaging data from the GLASS-JWST Early Release Science Program (JWSTERS-1324, Treu et al. 2022, T22 hereafter).”
JWST Census for the Mass–Metallicity Star Formation Relations at z = 4–10 with Self-consistent Flux Calibration and Proper Metallicity Calibrators (2023, methodology): “Notable results have come from the Early Release Science ( ERS ) observations of GLASS ( Treu et al. 2022; Morishita et al. 2023; Mascia et al. 2023 ) and CEERS ( Finkelstein et al. 2023; Bagley et al. 2023; Sanders et al. 2023; Tang et al. 2023; Fujimoto et al. 2023; Shapley et al. 2023 ) , two…”
The evolution of the galaxy UV luminosity function at redshifts z ≃ 8 – 15 from deep JWST and ground-based near-infrared imaging (2022, methodology): “Finally, the GLASS ERS programme (Treu et al. 2022) has already yielded a parallel NIRCam field consisting of one (two module) pointing imaged in the F090W, F115W, F150W, F200W, F277W, F356W, and F444W filters.”
A JWST/NIRSpec First Census of Broad-line AGNs at z = 4–7: Detection of 10 Faint AGNs with M BH ∼ 106–108 M ⊙ and Their Host Galaxy Properties (2023, background): “…Pontoppidan et al. 2022) targeting the SMACS 0723 lensing cluster field (ERO-2736) and the Early Release Science (ERS) observations of GLASS (ERS-1324, PI: T. Treu; Treu et al. 2022) and the Cosmic Evolution Early Release Science (CEERS; ERS-1345, PI: S. Finkelstein; Finkelstein et al. 2022b).”
Two Remarkably Luminous Galaxy Candidates at z ≈ 10–12 Revealed by JWST (2022, methodology): “The first is the NIRCam parallel field of the ERS program GLASS (PID: 1324, Treu et al. 2022).”
JWST CEERS and JADES Active Galaxies at z = 4–7 Violate the Local M •–M ⋆ Relation at >3σ: Implications for Low-mass Black Holes and Seeding Models (2023, background): “We examine the following data set of SMBHs and their host galaxies: • 8 sources reported by Harikane et al. (2023a), obtained from the Early Release Observations (Pon-toppidan et al. 2022), which targeted the SMACS 0723 field, the Early Release Science observations of GLASS (Treu et al. 2022), and t”