AAS 199th meeting, Washington, DC, January 2002
Session 72. Properties and Structure of Extragalactic Systems
Oral, Tuesday, January 8, 2002, 10:00-11:30am, Georgetown East

[Previous] | [Session 72] | [Next]

[72.02] A survey of low density early-type galaxies in low density environments.

R. Davies (Durham University, UK.), H. Kuntschner (ESO, Garching.), R. J. Smith (P. Univ. Catolica de Chile.), M. M. Colless, R. Kaldare (RSAA, ANU, Canberra.), A. Vazdekis (IAC, Tenerife.)

We have completed a survey of early-type galaxies in a region covering 700 sq. degrees with cz<7000km/s. We find no early-type galaxies with MB > -20 that satisfy our isolation criteria. The sample galaxies obey the Mg-sigma relation but have a higher frequency of [OII] and [OIII] emission than found in the Fornax cluster. They appear to be younger than the ellipticals in the Fornax cluster having a spread in luminosity weighted ages similar to lenticular galaxies.

This work was funded by the PPARC rolling grant: ``Extragalactic Astronomy and Cosmology in Durham 2000-2004'' PPA/G/O/1999/00604.

[Previous] | [Session 72] | [Next]