Image Details
Caption: Figure 1.
Line profile changes in Hα from VLT/XSHOOTER (left) and Paschen γ from both XSHOOTER and JWST (right) seen in VLT/XSHOOTER observations of Cha1107-7626. The eight epochs are color-coded and clearly show the evolution of the burst.
© 2025. The Author(s). Published by the American Astronomical Society.