The Hyades star cluster is 153 light years away[0]. A supernova 30 - 1000 light years distant is expected to have an effect on the Earth's biosphere[1]. If one of the black holes goes active, and if the jet is pointed at us, what might be the effect?
> If one of the black holes goes active, and if the jet is pointed at us, what might be the effect?
For stellar mass black holes, I don't think jets would have a significant effect this far away. The jets that travel really long distances are associated with supermassive black holes (billions of solar masses) powering quasars.
[0] https://en.wikipedia.org/wiki/Hyades_(star_cluster)
[1] https://en.wikipedia.org/wiki/Near-Earth_supernova