Depleted cores, multi-component fits, and structural parameter relations
  for luminous early-type galaxies
  New surface brightness profiles from 26 early-type galaxies with partially
depleted cores have been extracted from the full radial extent of HST images,
giving us a total sample of 31 such core-Sersic galaxies. We have carefully
quantified the radial stellar distributions of the elliptical galaxies using
the core-Sersic model whereas for the lenticular galaxies a core-Sersic bulge
plus an exponential disc model gives the best representation. We additionally
caution about the excessive use of multiple Sersic functions for decomposing
galaxies and compare with past fits in the literature. The structural
parameters obtained from our fitted models are in general, in good agreement
with our initial study using radially limited (R < 10") profiles, and are used
here to update several galaxy scaling relations. We find near-linear relations
between the break radius R_b and the spheroid luminosity L such that R_b ~
L^(1.13 +/- 0.13), and with the supermassive black hole mass M_BH such that R_b
~ M_BH^(0.83+/- 0.21). This is internally consistent with the notion that
major, dry mergers add the stellar and black hole mass in equal proportion,
i.e., M_BH ~ L. In addition, we observe a linear relation R_b ~ R_e^(0.98 +/-
0.15) for the core-Sersic elliptical galaxies, where R_e is the galaxies'
effective half light radii, which is collectively consistent with the
approximately-linear, bright-end of the curved L-R_e relation. Finally, we
measure accurate stellar mass deficits M_def that are in general 0.5-4 M_BH,
and we identify two galaxies (NGC 1399, NGC 5061) that, due to their high
M_def/M_BH ratio, may have experienced oscillatory core-passage by a kicked
black hole. The galaxy scaling relations and stellar mass deficits favor
core-Sersic galaxy formation through a few `dry' major merger events involving
supermassive black holes such that M_def ~ M_BH^(3.70 +/- 0.76), for M_BH > 2 X
10^8 M_sun.
