Eddington Finkelstein coordinates in the Schwarzschild spacetime

In summary, the Eddington-Finkelstein coordinates cover only half of the maximal analytic extension of the Schwarzschild spacetime. They are divided into two different coordinate systems, ingoing and outgoing, which cover different but overlapping halves of spacetime. The regions of spacetime are labeled differently by Poisson and Wald.
  • #1
vitaniarain
11
0
Do the Eddington-Finkelstein coordinates allow to cover the maximal analytic extension of the Schwarzschild spacetime? ans if not what region do they cover?
 
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  • #2
They cover the entire manifold except for the "true" singularity at r=0.
 
  • #3
vitaniarain said:
Do the Eddington-Finkelstein coordinates allow to cover the maximal analytic extension of the Schwarzschild spacetime? ans if not what region do they cover?

Eddington-Finkelstein coordinates cover only half of the maximal analytic extension of Schwarzschild spacetime. Take a look at section 5.1.3 in Eric Poisson's notes,

http://www.physics.uoguelph.ca/poisson/research/agr.pdf.

Better yet, see if your library has a copy of the excellent book, A Relativist's Toolkit: The Mathematics of Black Hole Mechanics, into which the notes evolved.

Ingoing Eddington-Finkelstein coordinates cover half of the maximal analytic extension of the Schwarzschild spacetime, and outgoing Eddington-Finkelstein coordinates cover half of the maximal analytic extension of the Schwarzschild spacetime. Note that:

1) these are two different coordinate systems;

2) they cover different, but overlapping, halves of spacetime;

3) If "Eddington-Finkelstein coordinates" appears without either "ingoing" or "outgoing", than "ingoing" is usually meant;

4) Poisson labels the regions of spacetime differently than does Wald.
 
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  • #4
Sorry about my above answer, I think I am in error.
 
  • #5
Thank you for your answers and help!
 

FAQ: Eddington Finkelstein coordinates in the Schwarzschild spacetime

1. What are Eddington Finkelstein coordinates in the Schwarzschild spacetime?

Eddington Finkelstein coordinates are a set of coordinates used to describe the curvature of space-time in the vicinity of a non-rotating, uncharged black hole, known as the Schwarzschild spacetime. These coordinates were first introduced by Arthur Eddington and David Finkelstein in the early 20th century.

2. How do Eddington Finkelstein coordinates differ from other coordinate systems?

Eddington Finkelstein coordinates differ from other coordinate systems, such as Schwarzschild coordinates, in that they are regular at the event horizon of a black hole. This means they do not exhibit the coordinate singularity that other coordinate systems do at the event horizon.

3. What is the significance of Eddington Finkelstein coordinates?

Eddington Finkelstein coordinates have significant physical and mathematical significance in the study of black holes. They allow for a better understanding of the curvature of space-time near a black hole and have been used in the development of various theories, such as the theory of general relativity.

4. How are Eddington Finkelstein coordinates calculated?

Eddington Finkelstein coordinates are calculated using the Schwarzschild metric, which describes the curvature of space-time in the Schwarzschild spacetime. This metric takes into account the mass and distance of the black hole, and the coordinates are then solved for using mathematical equations.

5. What are some practical applications of Eddington Finkelstein coordinates?

Eddington Finkelstein coordinates have practical applications in the study of black holes and their properties. They have also been used in the development of various theories, such as Hawking radiation, which describes the emission of particles from a black hole's event horizon. These coordinates have also been used in the study of gravitational lensing and the formation of galaxies and other celestial bodies.

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