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The JDISC Survey: Inner Disk Chemistry of Class I/FS Disks and Tentative Evidence for Early Pebble Drift

  • Authors: Ke Zhang, Andrea Banzatti, Colette Salyk, Abygail Waggoner, Klaus Pontoppidan, María José Colmenares, Ilaria Pascucci, Lucas A. Cieza, Miguel Vioque, Paola Pinilla, Geoffrey A. Blake, Joan Najita, Joe Williams, Sebastiaan Krijt, Till Kaeufer, Jane Huang, Feng Long, Chengyan Xie, Minjae Kim, Eshan Raul, Dary A. Ruíz-Rodríguez, Nicole Arulanantham, Benoît Tabone, Mayank Narang, Karina Mauco

Ke Zhang et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 2.

Top panel: JWST MIRI/MRS spectra of two representative Ophiuchus Class I/FS sources—Oph 11 (molecule-rich; blue) and Oph 8 (molecule-poor; gray)—with ice absorption features highlighted (shaded bands). Bottom panel: extinction-corrected, continuum-subtracted spectra of the 12 sources with water emission detections (13–25 μm).

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