Astrophys.J.Lett. Astrophys.J.Lett., 2023, 946 (1), pp.L28. ⟨10.3847/2041-8213/acc2c1⟩ Levan, A J, Lamb, G P, Schneider, B, Hjorth, J, Zafar, T, de Ugarte Postigo, A, Sargent, B, Mullally, S E, Izzo, L, D'Avanzo, P, Burns, E, Fernandez, J F A, Barclay, T, Bernardini, M G, Bhirombhakdi, K, Bremer, M, Brivio, R, Campana, S, Chrimes, A A, D'Elia, V, Valle, M D, De Pasquale, M, Ferro, M, Fong, W, Fruchter, A S, Fynbo, J P U, Gaspari, N, Gompertz, B P, Hartmann, D H, Hedges, C L, Heintz, K E, Hotokezaka, K, Jakobsson, P, Kann, D A, Kennea, J A, Laskar, T, Le Floc'h, E, Malesani, D B, Melandri, A, Metzger, B D, Oates, S R, Pian, E, Piranomonte, S, Pugliese, G, Racusin, J L, Rastinejad, J C, Ravasio, M E, Rossi, A, Saccardi, A, Salvaterra, R, Sbarufatti, B, Starling, R L C, Tanvir, N R, Thoene, C C, van der Horst, A J, Vergani, S D, Watson, D, Wiersema, K, Wijers, R A M J & Xu, D 2023, ' The First JWST Spectrum of a GRB Afterglow : No Bright Supernova in Observations of the Brightest GRB of all Time, GRB 221009A ', Astrophysical Journal Letters, vol. 946, no. 1, 28 . https://doi.org/10.3847/2041-8213/acc2c1 Astrophysical Journal Letters, 946, 1-14 Astrophysical Journal Letters, 946, 1, pp. 1-14