What are the effects of a traveling black hole?

[WestAir]

Question: What are the effects of a stellar black hole that is traveling through the Milky Way at speeds greater than 99% of C relative to the Galactic disc? By that I mean are there any interesting effects observed by an outside or local observer? Will the stellar black hole appear normally or will its gravitational lensing effect become even more spectacular?

Would an object in orbit of such a black hole see the Universe in hyper-speed due to the relativistic effects of .99C and the additional frame-dragging of space near the EH?

Finally, if two stellar black holes traveling in opposite directions, each with a velocity of 0.99C relative to the Galactic Disc, collided head on, would the resulting deceleration allow the singularity to become visible to an outside observer before the ergo-sphere re stabilized?

Author Note: Played some Space Engine. Started to wonder what would happen if I launched a singularity through the milky way at relativistic speeds. Curiosity...

[K^2]

Question: What are the effects of a stellar black hole that is traveling through the Milky Way at speeds greater than 99% of C relative to the Galactic disc? By that I mean are there any interesting effects observed by an outside or local observer? Will the stellar black hole appear normally or will its gravitational lensing effect become even more spectacular?

It's going to lens differently. There could be some asymmetry to lensing, and there can be blue/red shifts depending on direction of travel. I don't think it will look much different otherwise.

Would an object in orbit of such a black hole see the Universe in hyper-speed due to the relativistic effects of .99C and the additional frame-dragging of space near the EH?

General Relativity is still relative. You can look at it from perspective that black hole is static and the rest of the universe is flying by. So an object orbiting a black hole will orbit it exactly the same way regardless of whether it's moving or not.

Of course, from perspective of an outside observer, orbital motion around a body traveling at .99c is going to look weird due to time dilation and length contraction. This is so regardless of the source. But with black hole, orbiting object itself can be traveling at high fraction of c, making it more pronounced.

Finally, if two stellar black holes traveling in opposite directions, each with a velocity of 0.99C relative to the Galactic Disc, collided head on, would the resulting deceleration allow the singularity to become visible to an outside observer before the ergo-sphere re stabilized?

Actual collision is above my pay grade. GR is non-linear, so things will get crazy before the two event horizons overlap. Before that, a ton of energy would be released as the two accelerate towards each other. Once they merge, however, no energy can escape, so all that kinetic energy would end up contributing to new black hole's mass.

[FrostX1]

I feel this will explain.

[togfox]

That video explains that Morgan Freeman is omnipotent.

He is everywhere.

[Bobhendly]

I would pay Morgan freeman 86 Million Dollars to read me a child's bedtime story.

The power of the FREEMAN.