High surface brightness dwarf galaxies in the Fornax cluster

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Submitted to Monthly Notices of the Royal Astronomical Society, 5 pages; a LaTeX file (uses mn.sty) and 5 eps figures

Scientific paper

10.1046/j.1365-8711.1998.01578.x

We describe a search for compact dwarf galaxies in the Fornax cluster using the FLAIR spectrograph on the UK Schmidt Telescope. We measured radial velocities of 453 compact galaxies brighter than Bt=17.3 and found seven new compact dwarf cluster members that were not classified in previous surveys as members of the cluster. These are amongst the most compact, high surface brightness dwarf galaxies known. The inclusion of these galaxies in the cluster does not change the total luminosity function significantly but they are important because of their extreme nature; one in particular appears to be a high (normal) surface brightness dwarf spiral. Three of the new dwarfs have strong emission lines and appear to be blue compact dwarfs (BCDs), doubling the number of confirmed BCDs in the cluster. We also determined that none of the compact dwarf elliptical (M32-like) candidates are in the cluster, down to an absolute magnitude Mb=-13.2. We have investigated the claim of Irwin et al. (1990) that there is no strong relation between surface brightness and magnitude for the cluster members and find some support for this for the brighter galaxies (Bt<17.3) but fainter galaxies still need to be measured.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

High surface brightness dwarf galaxies in the Fornax cluster does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with High surface brightness dwarf galaxies in the Fornax cluster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High surface brightness dwarf galaxies in the Fornax cluster will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-367953

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.