Lyman and Balmer breaks reveal mature z=8 galaxies with the code Pegase.3

Brigitte Rocca-Volmerange, A. Hilberer, M. Fioc

The z=8 galaxy sample (EGSY-2008532660, EGS-zs8-1, EGS-zs8-2), observed with HST and Spitzer/IRAC, was selected for its atypical [3.6]-[4.5]mum IR excess. The best-fitting of obser…