Pseudobulges in Barred S0 Galaxies

Details Pseudobulges in Barred S0 Galaxies Pseudobulges in Barred S0 Galaxies

2004-09-05

arxiv.org/abs/astro-ph/0409103v1

Astronomy and Astrophysics

Astrophysics

3 pages, 1 figure; to appear in "Penetrating Bars through Masks of Cosmic Dust: The Hubble Tuning Fork Strikes a New Note," ed

Scientific paper

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.

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