Forming misaligned stellar discs around a massive black hole: Cloud infall in the Galactic Centre
Abstract
The innermost parsec around Sgr A* has been found to play host to two discs or streamers of O and W-R stars. They are misaligned by an angle approaching 90 degrees. That the stars are approximately coeval indicates that they formed in the same event rather than independently. We have performed SPH simulations of the infall of a single prolate cloud towards a massive black hole. As the cloud is disrupted, the large spread in angular momentum can, if conditions allow, lead to the creation of misaligned gas discs. In turn, stars may form within those discs. We are now investigating the origins of these clouds in the Galactic Centre (GC) region.
Keywords
Cite
@article{arxiv.1401.5081,
title = {Forming misaligned stellar discs around a massive black hole: Cloud infall in the Galactic Centre},
author = {William Lucas and Ian Bonnell and Melvyn Davies and Ken Rice},
journal= {arXiv preprint arXiv:1401.5081},
year = {2015}
}
Comments
To appear in the Proceedings of the IAU Symposium 303: The Galactic Center: Feeding and Feedback in a Normal Galactic Nucleus