Image Details

Choose export citation format:

A Steep-extinction Quasi-stellar Object at z = 4.6: JWST Evidence for Abundant Small Dust Grains

  • Authors: Mingyu Li, 明宇 李, Zheng Cai, Roberto Maiolino, Fengwu Sun, Xihan Ji, Qiao Duan, Bjorn H. C. Emonts, Xiaohui Fan, Ignas Juodžbalis, Xiaojing Lin, Yixiao Liu, Sandro Tacchella

Mingyu Li et al 2026 The Astrophysical Journal Letters 1008 .

  • Provider: AAS Journals

Caption: Figure A2.

Photometric redshift and SED modeling on the JWST photometry for UDS-27023 using the Prospector code, still revealing a quiescent/post-starburst galaxy at zphot ≈ 2.6. Left: observed spectrum (thin red line) and photometry (filled red circles with error bars) compared with the best-fit Prospector model spectrum (thick black line) and synthetic photometry (open cyan squares). Fit residuals χ are shown in the lower panel, with total χ2 values for the fit indicated. Top right: posterior SFR as a function of lookback time. Bottom right: photometric redshift probability distribution P(z). The spectroscopic redshift zspec = 4.556 is marked by the vertical red dashed line.

Other Images in This Article
Copyright and Terms & Conditions

Additional terms of reuse