articleMonthly Notices of the Royal Astronomical SocietyAug 15, 2023HYBRID OA

The JWST FRESCO survey: legacy NIRCam/grism spectroscopy and imaging in the two GOODS fields

PAPascal A. OeschGBGabriel BrammerRPRohan P. NaiduRJR. J. BouwensJCJohn Chisholm

University of Geneva · University of Copenhagen · +26 more institutions

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Abstract

ABSTRACT We present the JWST cycle 1 53.8 h medium program FRESCO, short for ‘First Reionization Epoch Spectroscopically Complete Observations’. FRESCO covers 62 arcmin2 in each of the two GOODS/CANDELS fields for a total area of 124 arcmin2 exploiting JWST’s powerful new grism spectroscopic capabilities at near-infrared wavelengths. By obtaining ∼2 h deep NIRCam/grism observations with the F444W filter, FRESCO yields unprecedented spectra at R ∼ 1600 covering 3.8–5.0 µm for most galaxies in the NIRCam field of view. This setup enables emission line measurements over most of cosmic history, from strong PAH lines at z ∼ 0.2–0.5, to Pa α and Pa β at z ∼ 1–3, He i and [S iii] at z ∼ 2.5–4.5, H α and [N ii] at z ∼…

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Topics & keywords

Topics
Keywords
  • Grism
  • Galaxy
  • Physics
  • Data cube
  • Astrophysics
  • Reionization
  • James Webb Space Telescope
  • Fresco
UN Sustainable Development Goals
  • Sustainable cities and communities
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