ICB   26814
INSTITUTO INTERDISCIPLINARIO DE CIENCIAS BASICAS
Unidad Ejecutora - UE
artículos
Título:
Circular geodesics stability in a static black hole in new massive gravity
Autor/es:
ACEÑA, ANDRÉS; ALDÁS, FRANKLIN; LÓPEZ, ERICSON
Revista:
Galaxies
Editorial:
MDPI AG
Referencias:
Año: 2020 vol. 8
Resumen:
We study the existence and stability of circular geodesics in a family of asymptotically AdS static black holes in New Massive Gravity theory. We show that the mathematical sign of the hair parameter determines the existence of such geodesics. For a positive hair parameter, the stability regions follow the usual pattern, with the innermost geodesic being null, unstable, and separated from the horizon, followed by a region of unstable timelike geodesics and then a region of stable timelike geodesics, which extends in the asymptotic region.