EPISODE II: Variability in the CO and H${}_2$O rovibrational absorption lines in a periodically variable protostar EC 53

Seokho Lee, Jeong-Eun Lee, Chul-Hwan Kim +19

We present two-epoch JWST NIRSpec and MIRI observations of the young protostar EC 53 (V371 Ser), a periodically variable source with well-characterized quiescent and burst phases.…