Light Deflection in Plasma in the Hartle-Thorne Metric and in Other Axisymmetric Spacetimes with a Quadrupole Moment

Abstract

The light propagation in plasma medium around stationary gravitating objects is studied in the geometrical optics limit. Static metrics with quadrupole moments are considered, however, the main attention is paid to the stationary Hartle-Thorne metric and Kerr metric. Their different effects on the light deflection are compared. The deflection angle is given in a general analytic form, the detailed calculations are performed in the weak field limits and illustrated graphically. The trajectories of the light rays are constructed and compared, emphasizing the role of the quadrupole moment.

accepted in Phys Rev D

References in corpus (4)

• First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
• Gravitational lensing in a non-uniform plasma
• Higher order corrections to deflection angle of massive particles and light rays in plasma media for stationary spacetimes using the Gauss-Bonnet theorem
• Gravitational radiospectrometer

Cited by in corpus (1)

• Light deflection in axially symmetric stationary spacetimes filled with a moving medium