Tables 3 and 4 and Figs. 6, 7 and 21 are only available in electronic form at http://www.edpsciences.org. Table 5 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/393/389

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Based on data obtained Asiago/Ekar Observatory. Also based on observations made with INT operated on the island of La Palma by ING in the Spanish Observatorio del Roque de Los Muchachos of the Instituto de Astrofísica de Canarias.

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...árquez^1,

Visiting Astronomer, German-Spanish Astronomical Center, Calar Alto, operated by the Max-Planck-Institut fur Astronomie jointly with the Spanish National Commission for Astronomy.

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... Paper I

Isolated galaxies: NGC 818, UGC 3511, UGC 3804, NGC 2532, NGC 2712, IC 529, NGC 3294, NGC 3549, NGC 3811, NGC 3835, NGC 4162, NGC 4290, NGC 4525, NGC 5962, NGC 6155, NGC 6395, NGC 6643; spirals in Karachentsev's pairs: NGC 2798/99, NGC 4567/68, NGC 3646, NGC 7469/IC 5283, NGC 7537/41.

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... $f = 3 \times \log~ (r/D) + 0.4 \times (m - m_{\rm p})$

D is the distance from the target galaxy to the perturber, r is the radius of the target galaxy, m is the magnitude of the target galaxy and $m_{\rm p}$ is the magnitude of the perturber.

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... velocity

All the velocities have been corrected for inclination following Peterson et al. (1978).

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... curves

Notice that systematic effects in the third parameter analysis cannot not be addressed mainly due to the lack of accurate enough photometric information in our sample galaxies (see Kannappan et al. 2002).

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