Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2010-09-30
Phys.Rev.D83:023003,2011
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
15pages, 1 figure
Scientific paper
10.1103/PhysRevD.83.023003
In almost all of plasma theories for astrophysical objects, we have assumed the charge quasi-neutrality of unmagnetized plasmas in global scales. This assumption has been justified because if there is a charged plasma, it induces electric field which attracts the opposite charge, and this opposite charge reduces the charge separation. Here, we report a newly discovered instability which causes a charge separation in a rotating plasma inside of an innermost stable circular orbit (ISCO) around a black hole. The growth rate of the instability is smaller than that of the disk instability even in the unstable disk region and is forbidden in the stable disk region outside of the ISCO. However, this growth rate becomes comparable to that of the disk instability when the plasma density is much lower than a critical density inside of the ISCO. In such case, the charge separation instability would become apparent and cause the charged accretion into the black hole, thus charge the hole up.
No associations
LandOfFree
Charge separation instability in an unmagnetized disk plasma around a Kerr black hole does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Charge separation instability in an unmagnetized disk plasma around a Kerr black hole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charge separation instability in an unmagnetized disk plasma around a Kerr black hole will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-242546