The Fornax Spectroscopic Survey — Low Surface Brightness Galaxies in Fornax

The Fornax Spectroscopic Survey is a large optical spectroscopic survey of all 14 000 objects with 16.5 < B J < 19.7 in a 12 deg 2 area of sky centered on the Fornax Cluster. We are using the 400-fibre Two Degree Field spectrograph on the Anglo-Australian Telescope: the multiplex advantage of...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:International Astronomical Union Colloquium 1999, Vol.171, p.120-127
Hauptverfasser: Drinkwater, M.J., Phillipps, S., Jones, J.B.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The Fornax Spectroscopic Survey is a large optical spectroscopic survey of all 14 000 objects with 16.5 < B J < 19.7 in a 12 deg 2 area of sky centered on the Fornax Cluster. We are using the 400-fibre Two Degree Field spectrograph on the Anglo-Australian Telescope: the multiplex advantage of this system allows us to observe objects conventionally classified as “stars” as well as “galaxies”. This is the only way to minimise selection effects caused by image classification or assessing cluster membership. In this paper we present the first measurements of low surface brightness (LSB) galaxies we have detected both in the Fornax Cluster and among the background field galaxies. The new cluster members include some very low luminosity ( M B ≈ −11.5 mag) dwarf ellipticals, whereas the background LSB galaxies are luminous (−19.6 < M B < −17.0 mag) disk-like galaxies.
ISSN:0252-9211
DOI:10.1017/S0252921100054191