Fig. 4
Spectra of both galaxies. The vertical axis is the calibrated flux in units of erg s-1 cm2 Å-1. First panel: the nuclear features of HRG 2304. Second panel: same as the first panel, but for AM 1646-795 (NED01). Overplotted in both panels is the identification of the main absorption features: G band λ4305 Å, Hβ, MgIb λ5174 Å, MgH λ5269 Å, NaID λ5892 Å, Hα and the TiO band in λ λ6250, 7060.
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