All Tables

Table 4: Frequency of disk types: listed are the number of galaxies per profile type. The values in brackets are those associated to more than one break type (mixed classification). Therefore the last column gives the frequency for each break type and does not add up to 100%.
Table 1: Global parameters of the LEDA-SDSS DR2 subsample: (1) principal name in LEDA, (2) right ascension, and (3) declination, (4) RC3 de Vaucouleurs et al. (1991) Hubble-type, and (5) LEDA Hubble-type, (6) coded LEDA Hubble parameter T, (7) absolute B band magnitude, corrected for galactic plus internal extinction, and k-corrected, (8) apparent diameter, defined by the isophote at the brightness of 25 B-mag/ $\Box^{\prime\prime}$ , (9) heliocentric radial velocities corrected for the Local Group infall onto Virgo, (10) estimated distance according to the Hubble relation with the Hubble constant of $H_{0}\!=\!70$ km s^-1 Mpc^-1, (11) weighted average of the measurements maximum rotation velocity from radio ( ${\rm H}$ I ) and optical rotation curves (H $_{\alpha }$ ).
Table 2: Background (sky) and ellipse parameters: (1) principal name in LEDA, (2+6) photometric $r^{\prime }$ and $g^{\prime }$ band zero points, (3+7) background value estimated around each galaxy, (4+8) $\sigma$ of background from the ellipse method (cf. Sect. 3.3), (5+9) limiting surface brightness due to this background, used to constrain the outer boundary of the exponential fits, (10) radius used for fixing the ellipse parameters (cf. Sect. 3.5), (11) mean position angle PA (for $r^{\prime }$ and $g^{\prime }$ band) of the fixed ellipse (as measured on the SDSS image), (12) mean ellipticity ME ( $r^{\prime }$ and $g^{\prime }$ band) of the fixed ellipse.
Table 3: Results: disk type and exponential disk parameters. (1) Principal name in LEDA, (2) profile classification (cf. Sect. 4.1), (3) fitting boundaries for the inner and outer exponential disk region, (4) break radius in units of arcsec and kpc, (5) inner scalelength in units of arcsec and kpc (6) inner scalelength in relation to the outer scalelength, (7) the central surface brightness of the inner/outer disk, (8) the surface brightness at the break radius (estimated at the crossing point of the two exponential fits), (9) galactic extinction according to Schlegel et al. (1998). For each galaxy two rows of values are given. The results obtained for the $r^{\prime }$ band in the upper row, for the $g^{\prime }$ band in the lower row. For galaxies with mixed classification both disk fits are shown.