The dark matter halo shape of edge-on disk galaxies: I. HI observations
Date
2010
Authors
O'Brien, J
Freeman, Kenneth
van der Kruit, P C
Bosma, A
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Publisher
Springer
Abstract
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.
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Keywords
Keywords: Dark matter halos; Disk galaxies; Force fields; Galaxies: halos; Gas layers; Late-type; Rotation curves; Channel map; Density distributions; Galactic plane; Galactocentric radius; High Latitudes; N-body simulation; Stellar disks; Stellar mass; Surface den Galaxies: halos; Galaxies: ISM; Galaxies: kinematics and dynamics; Galaxies: structure
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Source
Astronomy and Astrophysics
Type
Journal article
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Restricted until
2037-12-31
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