Skip to main navigation Skip to search Skip to main content

The JWST EXCELS survey: the ages and abundances of 3 < z < 5 massive quiescent galaxies show that downsizing was already in place by z ≃ 4 (code)

  • Ho Hin Leung (Creator)

Dataset

Description

Publicly available data associated with Leung et al. 2026
Link to paper: https://ui.adsabs.harvard.edu/abs/2026arXiv260205934L/abstract

This repository contains 3 folders. The first folder, data, contains the reduced, extracted, joined and calibrated 1D spectra for the 14 massive quiescent galaxies analyzed in this paper. Each file has 3 columns, representing wavelength (observed frame), flux density (erg s^-1 cm^-1 AA^-1) and error. Three galaxies also has alternative versions of this 1D spectrum file where the G140M grating was not included in the joining.

The data folder also contains two csv tables. input_photometry.csv has columns for all PRIMER+HST photometric points and their errors from the Begley et al. (2025) catalogue, plus redshift and redshift flags from visual inspection as described in Carnall et al. (2024). The second csv table, results.csv is a machine readable form of the main results table (Table 2) in the paper (fiducial BC03 models, no alpha enhancement variation).

The filters folder holds the photometric filter curves needed to repeat the Bagpipes fits in this paper.

The scripts folder has one script, which documents the exact model setup and priors used in Bagpipes for the fiducial fits in this paper, including both with and without AGN components.

If you have any questions, please email [email protected]
Date made available2026
PublisherGitHub

Software

  • Software
  • The JWST EXCELS survey: the ages and abundances of 3 < z < 5 massive quiescent galaxies show that downsizing was already in place by z ≃ 4

    Leung, H.-H., Carnall, A. C., Taylor, E., Stevenson, S. D., Beverage, A. G., Cullen, F., Dunlop, J. S., McLeod, D. J., McLure, R. J., Begley, R., Almaini, O., Antonogiannaki, S., Arellano-Córdova, K. Z., Barrufet, L., Bondestam, C., Donnan, C. T., Holst, I. J. B., Liu, F.-Y. F., Rowlands, K. & Sanders, R. L. & 4 others, Scholte, D., Skarbinski, M., Stanton, T. M. & Wild, V., 1 Jun 2026, In: Monthly Notices of the Royal Astronomical Society. 549, 1, 28 p., stag827.

    Research output: Contribution to journal › Article › peer-review

    Open Access
    File

Cite this