Absorption lines in the stellar template spectrum (left) and the spectrum extracted at the center (right) of IRAS 01072+4954. The spectra are normalized to the continuum level, which is shown as a dashed line in each case. The vertical dotted lines mark the limits of the integration regions, and shaded areas the equivalent widths. The measured values are reported in Table 2. From top to bottom the absorption features are, as indicated, Si i, CO (6−3), Na i and CO (2−0).