7 papers · 1 filter
ce-61: a Tidal Dwarf Galaxy in the Hercules cluster?
W. van Driel, P. -A. Duc, P. Amram +9
A candidate Tidal Dwarf Galaxy, ce-61, was identified in the merger system IC 1182 in the Hercules supercluster. The multi-wavelength data we obtained so far do not prove, however,…
Polar Ring Galaxies and the Tully-Fisher relation
Magda Arnaboldi, Enrica Iodice, Frederick Bournaud +4
We have investigated the Tully-Fisher relation for Polar Ring Galaxies (PRGs), based on near infrared, optical and HI data available for a sample of these peculiar objects. Many PR…
A 3D Optical Spectroscopy Study of Low Surface Brightness Galaxies
L. Chemin, P. Amram, C. Carignan +6
We present Halpha emission line velocity fields of two Low Surface Brightness galaxies - UGC 628 and UGC 5005 - obtained using Fabry-Perot interferometry observations at the Canada…
HI deficiency in the galaxy cluster ACO 3627. ATCA observations in the Great Attractor region
B. Vollmer, V. Cayatte, W. van Driel +5
ATCA 21 cm HI observations of the rich galaxy cluster ACO 3627 in the Great Attractor region are presented. Three fields of 30' diameter located within one Abell radius of ACO 3627…
H-alpha Velocity Fields of Normal Spiral Disks
David R. Andersen, M. A. Bershady, L. S. Sparke +4
We present H-alpha velocity fields for a sample of nearly face--on spiral galaxies observed with DensePak on the WIYN telescope. We combine kinematic inclinations and position angl…
Properties of `Superthin' Galaxies
L. D. Matthews, W. van Driel, J. S. Gallagher
`Superthins' are a subset of edge-on spiral galaxies exhibiting disks with large axial ratios (a/b>10), extraordinarily small stellar scale heights, and no bulge component. These a…