Phys. Rev. D 58, 023005 (1998) [11 pages]Innermost stable circular orbit of a spinning particle in Kerr spacetimeReceived 29 December 1997; published 25 June 1998 We study the stability of circular orbits of spinning test particles in Kerr spacetime. We find that some of the circular orbits become unstable in the direction perpendicular to the equatorial plane, although the orbits are still stable in the radial direction. For the large spin case [S/μM≲O(1)], the innermost stable circular orbit (ISCO) appears before the minimum of the effective potential in the equatorial plane disappears. This changes the radius of the ISCO and therefore the frequency of the last circular orbit. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.58.023005
DOI:
10.1103/PhysRevD.58.023005
PACS:
97.80.-d, 04.25.-g, 04.70.Bw
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.