Page "Star formation" Paragraph 9

A supermassive black hole at the core of a galaxy may serve to regulate the rate of star formation in a galactic nucleus.

A black hole that is accreting infalling matter can become active, emitting a strong wind through a collimated relativistic jet.

This can limit further star formation.

However, the radio emissions around the jets may also trigger star formation.

Likewise, a weaker jet may trigger star formation when it collides with a cloud.