ATNF Marsfield Lecture Theatre

ATNF Colloquium by Thijs van der Hulst,
(Wed. afternoon, 3:30-4:30pm).

Title: "HI in Elliptical Galaxies"

Abstract.
VLA imaging of some 20 elliptical galaxies in the HI 21-cm line provide
an overview of the variety of morphologies that exist. Half of the
sample consists of elliptical galaxies with optical fine structure such
as shells and central dust structures. The other half are optically
undisturbed. The HI is often rotating regularly and suggests disk like
structures. The data will be discussed within the framework of the idea
that the HI in gas-rich elliptical galaxies is captured from satellite
objects.