Radiation in a massive Schwarzschild background

1991 ◽  
Vol 44 (2) ◽  
pp. 551-554 ◽  
Author(s):  
Carlos Kozameh ◽  
E. T. Newman ◽  
Carlo Rovelli
Keyword(s):  
Schwarzschild Background

scholarly journals MOTION OF A TEST PARTICLE IN THE TRANSVERSE SPACE OF Dp-BRANES

2012 ◽  
Vol 21 (11) ◽  
pp. 1250056 ◽  
Author(s):  
ANINDITA BHATTACHARJEE ◽  
ASHOK DAS ◽  
LEVI GREENWOOD ◽  
SUDHAKAR PANDA
Keyword(s):  
Test Particle ◽  
Massive Particle ◽  
Higher Dimensions ◽  
Geodesic Equation ◽  
Point Particle ◽  
Elliptic Motion ◽  
Dimensional Spacetime ◽  
Extended Sources ◽  
Bound Orbits ◽  
Schwarzschild Background

We investigate the motion of a test particle in higher dimensions due to the presence of extended sources like Dp-branes by studying the motion in the transverse space of the brane. This is contrasted with the motion of a point particle in the Schwarzschild background in higher dimensions. Since Dp-branes are specific to 10-dimensional spacetime and exact solutions of geodesic equations for this particular spacetime has not been possible so far for the Schwarzschild background, we focus here to find the leading order solution of the geodesic equation (for motion of light rays). This enables us to compute the bending of light in both the backgrounds. We show that contrary to the well known result of no noncircular bound orbits for a massive particle, in Schwarzschild background, for d ≥ 5, the Dp-brane background does allow bound elliptic motion only for p = 6 and the perihelion of the ellipse regresses instead of advancement. We also find that circular orbits for photon are allowed only for p ≤ 3.

scholarly journals Electromagnetic sources distributed on shells in a Schwarzschild background

2011 ◽  
Vol 43 (12) ◽  
pp. 3301-3312 ◽  
Author(s):  
N. Gürlebeck ◽  
J. Bičák ◽  
A. C. Gutiérrez-Piñeres
Keyword(s):  
Schwarzschild Background

scholarly journals ESTIMATES FOR THE MAXWELL FIELD NEAR THE SPATIAL AND NULL INFINITY OF THE SCHWARZSCHILD SPACETIME

2009 ◽  
Vol 06 (02) ◽  
pp. 229-268 ◽  
Author(s):  
JUAN ANTONIO VALIENTE KROON
Keyword(s):  
Wide Class ◽  
Initial Value Problem ◽  
Maxwell Equations ◽  
Maxwell Field ◽  
Schwarzschild Spacetime ◽  
Initial Value ◽  
Null Infinity ◽  
Spacelike Infinity ◽  
Schwarzschild Background

It is shown how the gauge of the "regular finite initial value problem at spacelike infinity" can be used to construct a certain type of estimates for the Maxwell field propagating on a Schwarzschild background. These estimates are constructed with the objective of obtaining information about the smoothness near spacelike and null infinity of a wide class of solutions to the Maxwell equations.

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