A 3D optical study of Low Surface Brightness galaxies

Details A 3D optical study of Low Surface Brightness galaxies A 3D optical study of Low Surface Brightness galaxies

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sf2a.conf..599c&link_type=abstract

SF2A-2004: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 14-18, 2004. Edited by F. Combes, D. Barret

Astronomy and Astrophysics

Astrophysics

Scientific paper

Integral field spectroscopy observations of the ionized gas in Low Surface Brightness Galaxies (LSBs) are presented. The goal of this study is to map their kinematics at high angular resolution and to study their dark matter (DM) distribution. For that purpose, we have used Fabry-Perot observations obtained at the CFH and ESO 3.6m telescopes. The new contribution of highly resolved velocity fields is crucial to study the role of non-circular motions on the dynamics of LSBs, and particularly on the shape of their DM halo profile (cusp- or core- dominated halo). Here are shown some examples of galaxies in which such motions exist in their central parts and prevent from determining the accurate shape of their DM halo.

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