Horizon surface gravity as 2d geodesic expansion

Details Horizon surface gravity as 2d geodesic expansion Horizon surface gravity as 2d geodesic expansion

Publishing date

2008-06-10

URL

arxiv.org/abs/0806.1677v2

Journals

Class.Quant.Grav.25:195009,2008

Science

Astronomy and Astrophysics

Field

Astrophysics

SubField

General Relativity and Quantum Cosmology

Additional info

7 pages; v2: 8 pages, derivation of (8) in section 3 streamlined, added new expression for the 2d expansion, minor editing

Type

Scientific paper

Digital Object Identifier

10.1088/0264-9381/25/19/195009

Abstract

The surface gravity of any Killing horizon, in any spacetime dimension, can
be interpreted as a local, two-dimensional expansion rate seen by freely
falling observers when they cross the horizon. Any two-dimensional congruence
of geodesics invariant under the Killing flow can be used to define this
expansion, provided that the observers have unit Killing energy.

Affiliated with

Also associated with

No associations

Rating

Horizon surface gravity as 2d geodesic expansion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Horizon surface gravity as 2d geodesic expansion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Horizon surface gravity as 2d geodesic expansion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-175154