Can Black Holes be Propelled by Ion Engines?

[cph]

Jet propelled Black Holes by ion engine? Might asymmetry of jets for BH, together with Newton’s Third Law, result in high velocity over time, from an ion engine? Perhaps even several 100 km/s? Might Large Synoptic Telescope detect motion of associated binary massive star?

 

[Vagn]

Jet propelled Black Holes by ion engine? Might asymmetry of jets for BH, together with Newton’s Third Law, result in high velocity over time, from an ion engine? Perhaps even several 100 km/s? Might Large Synoptic Telescope detect motion of associated binary massive star?

What's your question, are you asking if it would be possible to do so? Why would you want to anyway?

 

[zhermes]

Might asymmetry of jets for BH, together with Newton’s Third Law, result in high velocity over time, from an ion engine?

No, not really. The asymmetry would have to be immense.
BH can obtain large velocities from close-encounters, supernova kicks, or gravitational radiation after a merger.

 

[Nik_2213]

IIRC, if a close binary partner goes supernova, the other partner may be flung off at speeds up to ~ 700 kilometres per second.

AFAIR, the remnant's polar jets will be equal, to first approximation. Motion will not be due to 'jet thrust', just the result of orbital velocity...

 

[zhermes]

IIRC, if a close binary partner goes supernova, the other partner may be flung off at speeds up to ~ 700 kilometres per second.

You can't reach those velocites from such a mechanism. To unbind the BH, the partner's supernova would have to eject at least half the mass of the system. You might be able to reach ~ 100 km/s with a strong kick, and high mass ejection.

 

[Nik_2213]

My bad...

Make that ~ 400 km / s for companion star.

http://www.aanda.org/index.php?opti...9&url=/articles/aa/pdf/2009/47/aa13326-09.pdf