Abell2744 QSO1 - JWST NIRSpec/IFS 1-d spectrum

One-dimensional NIR spectrum of Abell2744-QSO1 (Furtak et al. 2023, 2024), a Little Red Dot AGN (cf. Matthee et al. 2024) at redshift z=7.04 behind the lensing cluster Abell 2744.The data were obtained with JWST/NIRSpec in Integral Field Spectroscopy mode (IFS) from the BlackTHUNDER collaboration (Black holes in THe early Universe aNd their DensE surRoundings; PID 5015; PIs: H. Übler, R. Maiolino). The grating/filter combination is G395H/F290LP. See Ji et al. (2025) for a description of the observations.The data presented here were re-reduced with a pipeline customized to extract the extended wavelength range beyond the nominal pipeline cutoff of 5.27 μm, thus recovering the full extent of the broad Hα emission line.This customized data reduction is described in D'Eugenio et al. (2026). The 1-d spectrum presented here was extracted using the optimal extraction method, using a PSF-shaped kernel, except for the spectral region around the narrow lines, which is spatially extended.If you find these data useful, you may consider citingFurtak et al. (2023, 2024) - discovery articlesJi et al. (2025) - original description of the observationsD'Eugenio et al. (2026) - extended wavelength extractionPerna et al. (2023) - essential quality improvements for the data reductionOther notable uses of these data include Juodžbalis et al. (2026).