TY - JOUR
T1 - Innermost stable circular orbit of a spinning particle in Kerr spacetime
AU - Suzuki, Shingo
AU - Maeda, Kei ichi
PY - 1998/1/1
Y1 - 1998/1/1
N2 - 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 (Formula presented) 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.
AB - 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 (Formula presented) 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.
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U2 - 10.1103/PhysRevD.58.023005
DO - 10.1103/PhysRevD.58.023005
M3 - Article
AN - SCOPUS:84861165282
VL - 58
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 2
ER -