Pseudobulges in Barred S0 Galaxies
arXiv:astro-ph/0409103 · doi:10.1007/978-1-4020-2862-5_69
Abstract
We present preliminary results from an ongoing study of the bulges of S0 galaxies. We show that in a subsample of 14 barred S0 galaxies, fully half the photometrically defined bulges show kinematic signatures of "pseudobulges" -- that is, their kinematics are dominated by rotation. In four of these galaxies, we identify at least two subcomponents in the photometric bulge region: flatter, disk or bar components, assocated with disklike kinematics; and rounder "inner bulges,'' which appear to be hotter systems more like classical bulges.
3 pages, 1 figure; to appear in "Penetrating Bars through Masks of Cosmic Dust: The Hubble Tuning Fork Strikes a New Note," eds. D. Block, K. Freeman, R. Groess, I. Puerari, and E.K. Block (Dordrecht: Kluwer)