Jet interactions with a giant molecular cloud in the Galactic centre and ejection of hypervelocity stars
Cosmology and Nongalactic Astrophysics
2015-06-11 v1 Astrophysics of Galaxies
Abstract
The hypervelocity OB stars in the Milky Way Galaxy were ejected from the central regions some 10-100 million years ago. We argue that these stars, {as well as many more abundant bound OB stars in the innermost few parsecs,} were generated by the interactions of an AGN jet from the central black hole with a dense molecular cloud. Considerations of the associated energy and momentum injection have broader implications for the possible origin of the Fermi bubbles and for the enrichment of the intergalactic medium.
Keywords
Cite
@article{arxiv.1209.1175,
title = {Jet interactions with a giant molecular cloud in the Galactic centre and ejection of hypervelocity stars},
author = {Joseph Silk and Vincenzo Antonuccio-Delogu and Yohan Dubois and Volker Gaibler and Marcel R. Haas and Sadegh Khochfar and Martin Krause},
journal= {arXiv preprint arXiv:1209.1175},
year = {2015}
}
Comments
4 pages, 1 figure. Astronomy and Astrophysics Letters, in press