Preprint Article Version 1 This version is not peer-reviewed

Primordial Axion Stars and Galaxy Halos Formation

Version 1 : Received: 1 August 2024 / Approved: 1 August 2024 / Online: 2 August 2024 (05:57:53 CEST)

How to cite: Nesterov, A. I. Primordial Axion Stars and Galaxy Halos Formation. Preprints 2024, 2024080033. https://doi.org/10.20944/preprints202408.0033.v1 Nesterov, A. I. Primordial Axion Stars and Galaxy Halos Formation. Preprints 2024, 2024080033. https://doi.org/10.20944/preprints202408.0033.v1

Abstract

Primordial axion stars, hypothetical stars formed from axions, could play an essential role in forming galaxy halos. These stars could have originated in the early universe shortly after the Big Bang. We show that while “normal” axions coalesce into a gravitationally bound Bose-Einstein condensate, forming a dense object - an axion star, the ultralight axions could act as the initial seeds for galaxy halos.

Keywords

Dark matter; Axions; Axion stars

Subject

Physical Sciences, Particle and Field Physics

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