Dark matter caustics

P. Sikivie; W. Kinney

doi:10.1111/j.1749-6632.2001.tb05625.x

Dark matter caustics

P. Sikivie
, W. Kinney

Physics

University of Florida

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The late infall of cold dark matter onto an isolated galaxy such as our own produces flows with definite velocity vectors at any physical point in the galactic halo. It also produces caustics which are places where the dark matter density is very large. The outer caustics are topological spheres whereas the inner caustics are rings. The self-similar model of galactic halo formation predicts that the caustic ring radii a_n follow the approximate law a_n ∼ 1/n. In a recent study of 32 extended and well-measured galactic rotation curves, we found evidence for this law.

Original language	English
Pages (from-to)	102-109
Number of pages	8
Journal	Annals of the New York Academy of Sciences
Volume	927
DOIs	https://doi.org/10.1111/j.1749-6632.2001.tb05625.x
State	Published - 2001

Keywords

Caustics
Dark matter
Galactic halos
Rotation curves

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10.1111/j.1749-6632.2001.tb05625.x

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title = "Dark matter caustics",

abstract = "The late infall of cold dark matter onto an isolated galaxy such as our own produces flows with definite velocity vectors at any physical point in the galactic halo. It also produces caustics which are places where the dark matter density is very large. The outer caustics are topological spheres whereas the inner caustics are rings. The self-similar model of galactic halo formation predicts that the caustic ring radii an follow the approximate law an ∼ 1/n. In a recent study of 32 extended and well-measured galactic rotation curves, we found evidence for this law.",

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T1 - Dark matter caustics

AU - Sikivie, P.

AU - Kinney, W.

PY - 2001

Y1 - 2001

N2 - The late infall of cold dark matter onto an isolated galaxy such as our own produces flows with definite velocity vectors at any physical point in the galactic halo. It also produces caustics which are places where the dark matter density is very large. The outer caustics are topological spheres whereas the inner caustics are rings. The self-similar model of galactic halo formation predicts that the caustic ring radii an follow the approximate law an ∼ 1/n. In a recent study of 32 extended and well-measured galactic rotation curves, we found evidence for this law.

AB - The late infall of cold dark matter onto an isolated galaxy such as our own produces flows with definite velocity vectors at any physical point in the galactic halo. It also produces caustics which are places where the dark matter density is very large. The outer caustics are topological spheres whereas the inner caustics are rings. The self-similar model of galactic halo formation predicts that the caustic ring radii an follow the approximate law an ∼ 1/n. In a recent study of 32 extended and well-measured galactic rotation curves, we found evidence for this law.

KW - Caustics

KW - Dark matter

KW - Galactic halos

KW - Rotation curves

UR - https://www.scopus.com/pages/publications/0034981977

U2 - 10.1111/j.1749-6632.2001.tb05625.x

DO - 10.1111/j.1749-6632.2001.tb05625.x

M3 - Article

C2 - 11411148

AN - SCOPUS:0034981977

SN - 0077-8923

VL - 927

SP - 102

EP - 109

JO - Annals of the New York Academy of Sciences

JF - Annals of the New York Academy of Sciences

ER -

Dark matter caustics

Abstract

Keywords

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