Nuclear Components in the Bulges of Disk Galaxies

Balcells, Marc; Domínguez-Palmero, Lilian; Graham, Alister; Peletier, Reynier. F.
Bibliographical reference

The Central Kiloparsec of Starbursts and AGN: The La Palma Connection, ASP Conference Proceedings Vol. 249. Edited by J. H. Knapen, J. E. Beckman, I. Shlosman, and T. J. Mahoney. ISBN: 1-58381-089-7. San Francisco: Astronomical Society of the Pacific, 2001, p. 167.

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0
2001
Number of authors
4
IAC number of authors
3
Citations
6
Refereed citations
5
Description
By combining surface brightness profiles from images taken in the HST/NICMOS F160W and ground-based 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 sim1 arcsec. This is often as a result of inner power-law cusps similar to the inner profiles of intermediate-luminosity elliptical galaxies.