All Tables

Table 1: Peaks present in the spectra before the HF treatment.
Table 2: IDPs classification.
Table 3: Band strengths of molecules used for integration.
Table 4: Aliphatic column density (noted N[3.4], in the region 3000-2800 cm^-1) and silicate column density (N[10], around 1000 cm^-1) of the IDPs before the HF treatment, calculated after baseline correction. See text for error estimates.
Table 5: Peaks present in the spectra after the HF treatment.
Table 6: Aliphatic column density ( $N[3.4] = N{\rm [CH}_{2}] + N{\rm [CH}_{3}$ ], see Table 7) in the region 2800-3000 cm^-1 and silicate column density (N[10]) around 1000 cm^-1) of the IDPs after the HF treatment, calculated after a baseline correction. See text for error estimates.
Table 7: Column densities of the asymmetric aliphatic peaks in the region 2800-3000 cm^-1 present in the IDPs spectra after the HF treatment, and of the IRS 7 source of the Galactic Center. The estimated error of these values, due to spectral noise and the quality of the Gaussian fit, is $\sim$ 10%.
Table 8: Integration of other organic peaks present in the spectra after the HF treatment.