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SQuIGG﹩\overrightarrow{L}﹩E: Buried Star Formation Cannot Explain the Rapidly Fading CO(2–1) Luminosity in Massive, z ∼ 0.7 Post-starburst Galaxies

  • Authors: David J. Setton, Justin S. Spilker, Rachel Bezanson, Katherine A. Suess, Jenny E. Greene, Andy D. Goulding, Elia Cenci, Vincenzo R. D'Onofrio, Robert Feldmann, Mariska Kriek, Anika Kumar, Yuanze Luo, Desika Narayanan, Margaret E. Verrico, Pengpei Zhu

David J. Setton et al 2025 The Astronomical Journal 170 .

  • Provider: AAS Journals

Caption: Figure 1.

SQuIGG﹩\overrightarrow{L}﹩E is an SDSS-selected sample of 1318 massive (﹩\mathrm{log}({M}_{\star }/{M}_{\odot })\sim 11.2﹩) post-starburst galaxies at z ∼ 0.7 (gray contours; K. A. Suess et al. 2022a). Previous observational work observing CO(2–1) in these galaxies preferentially targeted the brightest (highest-mass/lowest-z) galaxies (blue points; K. A. Suess et al. 2017; R. Bezanson et al. 2022). In this work, we quadruple our sample size and target a much more representative sample (black points).

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