The Hubble Web: The Dark Matter Problem and Cosmic Strings

TL;DR

This paper proposes that a network of cosmic strings formed after inflation can explain dark matter phenomena, galaxy rotation curves, and the Tully-Fisher relation, offering a new perspective on cosmic structure formation.

Contribution

It introduces a novel model where cosmic strings formed at the end of inflation account for dark matter effects and galaxy dynamics, linking string tension to rotational velocities.

Findings

Cosmic strings can provide an accretion mechanism for baryonic and dark matter.

The model explains flat galaxy rotation curves and the Tully-Fisher relation.

A relationship between galaxy rotation velocity and string tension is established.

Abstract

I propose a reinterpretation of cosmic dark matter in which a rigid network of cosmic strings formed at the end of inflation. The cosmic strings fulfill three functions: At recombination they provide an accretion mechanism for virializing baryonic and warm dark matter into disks. These cosmic strings survive as configurations which thread spiral and elliptical galaxies leading to the observed flatness of rotation curves and the Tully-Fisher relation. We find a relationship between the rotational velocity of the galaxy and the string tension and discuss the testability of this model.