Playing with positive feedback: external pressure-triggering of a star-forming disc galaxy
Astrophysics of Galaxies
2016-01-27 v1
Abstract
Feedback in massive galaxies generally involves quenching of star formation, a favored candidate being outflows from a central supermassive black hole. At high redshifts however, explanation of the huge rates of star formation often found in galaxies containing AGN may require a more vigorous mode of star formation than attainable by simply enriching the gas content of galaxies in the usual gravitationally-driven mode that is associated with the nearby Universe. Using hydrodynamical simulations, we demonstrate that AGN-pressure-driven star formation potentially provides the positive feedback that may be required to generate the accelerated star formation rates observed in the distant Universe.
Keywords
Cite
@article{arxiv.1503.05823,
title = {Playing with positive feedback: external pressure-triggering of a star-forming disc galaxy},
author = {Rebekka Bieri and Yohan Dubois and Joseph Silk and Gary A. Mamon},
journal= {arXiv preprint arXiv:1503.05823},
year = {2016}
}
Comments
5 pages, 4 figures. Submitted to ApJ