Volume 397, Number 3, January III 2003
|Page(s)||L9 - L12|
|Published online||21 January 2003|
Letter to the Editor
Faint dwarf spheroidals in the Fornax Cluster
A flat luminosity function
Sternwarte der Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
2 Departamento de Astronomía y Astrofísica, P. Universidad Católica, Casilla 104, Santiago 22, Chile
Corresponding author: M. Hilker, firstname.lastname@example.org
Accepted: 1 December 2002
We have discovered 70 very faint dwarf galaxies in the Fornax Cluster. These dSphs candidates follow the same magnitude-surface brightness relation as their counterparts in the Local Group, and even extend it to fainter limits. The faintest dSph candidate in our sample has an absolute magnitude of mag and a central surface brightness of mag/arcsec2. There exists a tight color-magnitude relation for the early-type galaxies in Fornax that extends from the giant to the dwarf regime. The faint-end slope of the luminosity function of the early-type dwarfs is flat (), contrary to the results obtained by Kambas et al. (2000).
Key words: galaxies: clusters: individual: Fornax cluster / galaxies: dwarf / galaxies: fundamental parameters / galaxies: luminosity function
© ESO, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.