JWST/MIRI WFSS Spectral Atlas of Galaxies at z = 0–4 in the GOODS-N/S Fields (Data Release v1)

Mid-infrared (5–14 µm) slitless spectra of 181 spectroscopically confirmed galaxies at z = 0.08–3.71 in GOODS-N (150) and GOODS-S (31), extracted from archival JWST/MIRI wide-field slitless spectroscopy (P750L prism, FULL array) with the calibration of Sun (2026; paper reference / DOI to be added). The calibration reference files and reduction pipeline are released separately at https://github.com/fengwusun/miri_wfss. Contents File Description atlas_source_table.csv Source table, 181 rows (columns below) spectra.tar.gz 181 per-source FITS files (spectra/miri_wfss_{GN,GS}_{ID}.fits) quicklook.tar.gz 181 per-source quick-look plots (PDF; cutout + 2D + 1D) Source table columns Column Unit Description field — GN or GS jades_id — JADES photometric-catalog source ID (v5.0 for GOODS-N; v1.0.0 for GOODS-S) ra, dec deg JADES J2000 coordinates z_spec — spectroscopic redshift z_source — redshift provenance f444w_ab AB mag NIRCam F444W magnitude n_exp — number of co-added P750L exposures t_exp_s s total effective exposure time of the co-add extract_method — adopted 1D extraction (optimal or box) pa_disp_deg deg sky position angle of the dispersion axis (E of N) IDs and coordinates follow the JADES photometric catalogs, so the table can be cross-matched directly with public JADES data products. Per-source FITS layout Ext Name Content 0 PRIMARY header metadata (field, ID, coordinates, z, F444W, N_exp, t_exp, extraction method, dispersion PA) 1 SCI2D co-added 2D spectrum, 21 × N_λ, mJy per cross-dispersion pixel 2 ERR2D propagated 1σ uncertainty of SCI2D 3 SPEC1D 1D spectrum table: wave_um, flux_mJy, err_mJy, flux_alt_mJy, err_alt_mJy Wavelengths are in micron on a common 0.01-µm grid (SCI2D axis 1 carries a linear wavelength WCS: CRVAL1/CDELT1, CUNIT1 = um). SCI2D axis 2 is the cross-dispersion offset (0.11″ per pixel, ±10 px about the trace; CRPIX2 marks the nominal trace center). In SPEC1D, flux_mJy is the adopted extraction (METHOD in the header: profile-weighted optimal extraction for ~90% of sources, small- aperture boxcar otherwise); flux_alt_mJy is the other method. Fluxes are profile-weighted within a ±1.1″ window and are not total fluxes for extended sources; comparisons with large-aperture photometry require an additional aperture term. Caveats See Section 5 of the paper. In brief: single integrations beyond ~1–2 ks are systematics-limited; the flux response is valid over 4.7–13.81 µm only; and — as for all slitless spectroscopy — source contamination and spectral overlap can affect individual spectra despite the visual vetting, so treat features in the 2D and 1D spectra with caution. Citation If you use this atlas, please cite Sun (2026, journal reference to be added) and the originating JWST programs: GO-3224 (PI: McKinney), GO-4192 (PI: Alberts), GO-4762 (PI: Fujimoto), and GO-8544 (PI: Helton).