RUBIES: Evolved stellar populations with extended formation histories at z c 7-8 in candidate massive galaxies identified with JWST/NIRSpec
B. Wang, J. Leja, A. De Graaff, G.B. Brammer, A. Weibel, P. Van Dokkum, J.F.W. Baggen, K.A. Suess, J.E. Greene, R. Bezanson, N.J. Cleri, M. Hirschmann, I. Labbé, J.J. Matthee, I. Mcconachie, R.P. Naidu, E. Nelson, P.A. Oesch, D.J. Setton, C.C. Williams, Astrophysical Journal Letters 969 (2024).