Volume 515, June 2010
|Number of page(s)||17|
|Published online||09 June 2010|
The dark matter halo shape of edge-on disk galaxies *
I. HI observations
Research School of Astronomy and Astrophysics, Australian National University, Mount Stromlo Observatory, Cotter Road, ACT 2611, Australia e-mail: firstname.lastname@example.org; e-mail: email@example.com
2 Kapteyn Astronomical Institute, University of Groningen, PO Box 800, 9700 AV Groningen, The Netherlands e-mail: firstname.lastname@example.org
3 Laboratoire d'Astrophysique de Marseille, UMR 6110 Université de Provence/CNRS, 38 rue Frédéric Joliot-Curie, 13388 Marseille Cedex 13, France e-mail: email@example.com
Accepted: 9 March 2010
This is the first paper of a series in which we will attempt to put constraints on the flattening of dark halos in disk galaxies. We observe for this purpose the HI in edge-on galaxies, where it is in principle possible to measure the force field in the halo vertically and radially from gas layer flaring and rotation curve decomposition respectively. In this paper, we define a sample of 8 HI rich late-type galaxies suitable for this purpose and present the HI observations.
Key words: galaxies: structure / galaxies: kinematics and dynamics / galaxies: halos / galaxies: ISM
© ESO, 2010
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