Calculation of radar signals delay to second order in the frame of the General Relativity Theory

Abstract

From the Schwarzschild metric, the light delay due to a gravitational field is calculated to second order approximation in the gravitational potential. We analize the contribution of the second order terms for strong gravitational fields as the generated for black holes from stellar collapse and supermassive blackholes. Additionally, the angular dependence of the delay for a distant source as a pulsar is reviewed.

Keywords

• relatividad general
• desviación de la luz
• Einstein
• agujero negro
• pulsar