Beasts in Lambda-CDM Zoo

TL;DR

This paper reviews high-redshift astronomical discoveries that challenge conventional cosmological models and proposes two mechanisms, one potentially explaining early universe phenomena and possibly generating cosmological antimatter.

Contribution

It introduces two novel mechanisms to explain early universe observations that conflict with standard models, including a potential source of cosmological antimatter.

Findings

High-redshift quasars and gamma-ray bursts challenge existing models

Proposed mechanisms may resolve early universe formation issues

Potential creation of abundant cosmological antimatter

Abstract

Recent astronomical discoveries of supermassive black holes (quasars), gamma-bursters, supernovae, and dust at high redshifts, z = (5 --10), are reviewed. Such a dense population of the early universe is at odds with the conventional mechanisms of its possible origin. Similar data from the contemporary universe, which are also in conflict with natural expectations, are considered too. Two possible mechanisms are suggested, at least one of which can potentially solve all these problems. As a by-product of the last model, an abundant cosmological antimatter may be created.