Image Details
Caption: Figure 8.
Top: color image of SB(lens)0 galaxy NGC 4452 from the SDSS
g,r,i images via
http://www.wikisky.org. The bulge—which proves to be pseudo—is so tiny that it is almost invisible. The inner disk is edge-on and very flat; it
again consists of two shelves in surface brightness. Including the outer, thicker disk, these three shelves are signatures
of a bar, lens, and disk. Bottom: ellipticity
and surface brightness μ
V
along the major axis of NGC 4452 measured by fitting ellipses to the isophotes in the ACS and SDSS
g-band images. The five dashed curves show a decomposition of the profile inside the fit range (vertical dashes). The nucleus,
bulge, bar, lens, and disk are represented by Sérsic functions with indices
n as given in the figure. The sum of the components (solid curve) fits the data with an rms of 0.044
V mag arcsec
−2.
© 2012. The American Astronomical Society. All rights reserved.