On the effects of rotation during the formation of population III protostars

TL;DR

This study uses 3D simulations to explore how initial rotation affects the formation and disc development of Population III protostars, shedding light on angular momentum transport in primordial star formation.

Contribution

It provides the first detailed analysis of the impact of initial rotation on Population III star formation using SPH simulations.

Findings

Rotation influences disc formation and structure.

Angular momentum transport mechanisms are affected by initial rotation.

Results highlight the role of turbulence in primordial star formation.

Abstract

It has been suggested that turbulent motions are responsible for the transport of angular momentum during the formation of Population III stars, however the exact details of this process have never been studied. We report the results from three dimensional SPH simulations of a rotating self-gravitating primordial molecular cloud, in which the initial velocity of solid-body rotation has been changed. We also examine the build-up of the discs that form in these idealized calculations.