The dark matter halo shape of edge-on disk galaxies: I. HI observations

J. C. O'Brien; K. C. Freeman; P. C. Van Der Kruit; A. Bosma

doi:10.1051/0004-6361/200912565

The dark matter halo shape of edge-on disk galaxies: I. HI observations

J. C. O'Brien, K. C. Freeman, P. C. Van Der Kruit, A. Bosma

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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.

Original language	English
Article number	A60
Journal	Astronomy and Astrophysics
Volume	515
Issue number	7
DOIs	https://doi.org/10.1051/0004-6361/200912565
Publication status	Published - 9 Jun 2010

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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.",

keywords = "Galaxies: ISM, Galaxies: halos, Galaxies: kinematics and dynamics, Galaxies: structure",

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T1 - The dark matter halo shape of edge-on disk galaxies

T2 - I. HI observations

AU - O'Brien, J. C.

AU - Freeman, K. C.

AU - Van Der Kruit, P. C.

AU - Bosma, A.

PY - 2010/6/9

Y1 - 2010/6/9

N2 - 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.

AB - 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.

KW - Galaxies: ISM

KW - Galaxies: halos

KW - Galaxies: kinematics and dynamics

KW - Galaxies: structure

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DO - 10.1051/0004-6361/200912565

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VL - 515

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 7

M1 - A60

ER -

The dark matter halo shape of edge-on disk galaxies: I. HI observations

Abstract

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