Supermassive black holes have been found lurking in the cores of all galaxies observed with high enough sensitivity. Despite this, little is known about how they formed. What is known is that the mass of a supermassive black hole at the centre of a galaxy is related to the total mass and the typical speeds (the "velocity dispersion") of the stars in its host.
The very existence of this relationship suggests a close co-evolution between black holes and their host galaxies, and understanding their origin is vital for a proper model of how galaxies and black holes form and evolve. This is because many galaxy evolution models invoke powerful winds and/or jets from the central supermassive black hole to control or even stop star formation in the host galaxy (so-called "quasar feedback"). Alternatively, multiple mergers of galaxies - and their central black holes - are also often suggested as the primary drivers behind the evolution of massive galaxies.
You received this message because you are subscribed to the Google Groups "Keep_Mailing" group.
To unsubscribe from this group and stop receiving emails from it, send an email to keep_mailing+unsubscribe@googlegroups.com.
To post to this group, send email to keep_mailing@googlegroups.com.
Visit this group at https://groups.google.com/group/keep_mailing.
To view this discussion on the web visit https://groups.google.com/d/msgid/keep_mailing/CAKe5fOXC4TQriXQKBjeZotOfBrB8R1W3zRtst5XiRoO7TnJ3Jw%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.
No comments:
Post a Comment