Cosmological Imprints of Pre-Inflationary Particles

TL;DR

This paper investigates how pre-inflationary particles can create cosmic defects that leave observable imprints on the CMB and galaxy velocities, potentially explaining large-scale anomalies.

Contribution

It introduces a model linking pre-inflationary particles to cosmic defects with predictable profiles and measurable effects on cosmological observations.

Findings

Cosmic defects have a fixed profile determined by pre-inflationary particles.

Defects' magnitude depends linearly on a single particle parameter.

Potential explanation for some large-scale cosmological anomalies.

Abstract

We study some of the cosmological imprints of pre-inflationary particles. We show that each such particle provides a seed for a spherically symmetric cosmic defect. The profile of this cosmic defect is fixed and its magnitude is linear in a single parameter that is determined by the mass of the pre-inflationary particle. We study the CMB and peculiar velocity imprints of this cosmic defect and suggest that it could explain some of the large scale cosmological anomalies.