Warps and Cosmic Infall

Abstract

N-body simulations show that when infall reorientates the outer parts of a galactic halo by several degrees per Gyr, a self-gravitating disk that is embedded in the halo develops an integral-sign warp that is comparable in amplitude to observed warps. Studies of angular-momentum acquisition suggest that the required rate of halo reorientation is realistic for galaxies like the Milky Way.

4 pages, 2 figures, submitted to MNRAS on June 19, 1998

References in corpus (2)

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• The Persistence of Warps in Spiral Galaxies with Massive Halos

Cited by in corpus (84)

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• Bending instabilities at the origin of persistent warps: a new constraint on dark matter halos
• Probing the shape and history of the Milky Way halo with orbital spectral analysis
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• A Tilted Dark Halo Origin of the Galactic Disk Warp and Flare
• Tracing the Milky Way warp and spiral arms with classical Cepheids
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• On the kinematic signature of the Galactic warp as revealed by the LAMOST-TGAS data
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• Constraining the age of the NGC 4565 HI Disk Warp: Determining the Origin of Gas Warps
• SDSS IV MaNGA: Characterizing Non-Axisymmetric Motions in Galaxy Velocity Fields Using the Radon Transform
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• A slightly oblate dark matter halo revealed by a retrograde precessing Galactic disk warp
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