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The Deepest GLIMPSE of a Dense Gas Cocoon Enshrouding a Little Red Dot

  • Authors: Vasily Kokorev, John Chisholm, Rohan P. Naidu, Seiji Fujimoto, Hakim Atek, Gabriel Brammer, Steven L. Finkelstein, Hollis B. Akins, Danielle A. Berg, Lukas J. Furtak, Qinyue Fei, Tiger Yu-Yang Hsiao, Ivo Labbé, Jorryt Matthee, Julian B. Muñoz, Pascal A. Oesch, Richard Pan, Pierluigi Rinaldi, Alberto Saldana-Lopez, Daniel Schaerer, Marta Volonteri, Adi Zitrin

Vasily Kokorev et al 2026 The Astrophysical Journal 1004 .

  • Provider: AAS Journals

Caption: Figure 2.

A staggering abundance of spectral lines in GLIMPSE-17775 at z = 3.501. For each spectral window defined in Section 3.3, we show the data (black), the best-fit narrow and broad components (dark purple and blue), and the total best-fit model including the continuum (red). All broad components were fit with models allowing exponential wings. The ΔBIC between exponential and Gaussian fits is reported in the top right of each panel; negative values indicate a preference for an exponential profile. The lower panels display the uncertainty-weighted residuals for each fit.

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