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Nuclear Components in the Bulges of Disk Galaxies | | M. Balcells
; L. Dominguez-Palmero
; A. Graham
; R. F. Peletier
; | | Date: |
22 Jun 2001 | | Subject: | astro-ph | | Affiliation: | Instituto de Astrofisica de Canarias), R. F. Peletier (U. Nottingham | | Abstract: | By combining surface brightness profiles from images taken in the HST/NICMOS F160W and ground-based (GB) $K$ bands, we have obtained NIR profiles for a well studied sample of inclined disk galaxies, spanning radial ranges from 20 pc to a few kpc. We fit PSF-convolved Sersic-plus-exponential laws to the profiles, and compare the results with the fits to the ground-based data alone. HST profiles show light excesses over the best-fit Sersic law in the inner ~1 arcsec. This is often as a result of inner power-law cusps similar to the inner profiles of intermediate-luminosity elliptical galaxies. | | Source: | arXiv, astro-ph/0106413 | | Services: | Forum | Review | PDF | Favorites | |
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