Jet interactions with a giant molecular cloud in the Galactic centre and ejection of hypervelocity stars

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...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2012-09
Main Authors: Silk, Joseph, Antonuccio-Delogu, Vincenzo, Dubois, Yohan, Gaibler, Volker, Haas, Marcel R, Khochfar, Sadegh, Krause, Martin
Format: Article
Language:English
Subjects:
Active galactic nuclei
Astrochemistry
Ejection
Hypervelocity
Intergalactic media
Jet interaction
Massive stars
Milky Way Galaxy
Molecular clouds
Stars
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.1209.1175