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Table 1.

Results of fitting two models (power-law and curved) to spectra of galaxies from Fig. 2.

Name Power-law: A1 Curved: A2 p-value (in %) Best
NGC 660 −0.47 ± 0.02 3.39 −0.16 ± 0.04 1.73 0.22 C
NGC 891 −0.69 ± 0.02 2.44 −0.16 ± 0.03 0.94 0.003 C
NGC 972 −0.56 ± 0.03 2.66 −0.22 ± 0.06 1.13 0.26 C
NGC 1569 −0.40 ± 0.03 4.62 −0.18 ± 0.04 1.93 0.06 C
NGC 3079 −0.72 ± 0.02 7.88 −0.12 ± 0.04 5.30 0.16 C
NGC 3627 −0.57 ± 0.04 6.18 −0.19 ± 0.09 4.66 2.2 C
NGC 3628 −0.60 ± 0.03 6.20 −0.09 ± 0.04 4.93 3.5 C
NGC 3646 −0.79 ± 0.02 0.23 −0.03 ± 0.07 0.31 70 P
NGC 3655 −0.66 ± 0.03 0.84 −0.14 ± 0.09 0.66 16 P
NGC 4102 −0.63 ± 0.03 6.67 −0.30 ± 0.04 1.51 < 0.001 C
NGC 4254 −0.74 ± 0.03 6.24 −0.11 ± 0.06 5.62 8.3 P
NGC 4826 −0.43 ± 0.03 1.11 −0.04 ± 0.06 1.17 51 P
NGC 5055 −0.69 ± 0.04 9.04 −0.17 ± 0.05 4.46 0.12 C
NGC 5371 −0.63 ± 0.01 0.10 0.00 ± 0.03 0.12 90 P
NGC 5936 −0.70 ± 0.02 0.73 0.02 ± 0.06 0.80 77 P
UGC 3351 −0.69 ± 0.07 7.99 −0.42 ± 0.11 1.97 0.70 C
UGC 12914 −0.82 ± 0.03 1.59 −0.19 ± 0.05 0.64 0.85 C

Notes. The best-fitted parameters for the power-law model (A1) and the curved model (A2) as well as the quality of the fits ( ) and the p-value of the F-test are given. The last column shows the selected most reasonable model: P – denotes the power-law model, C – the curved model (see Sect. 3.3).

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