The Cosmological Perturbed Lightcone Gauge

The Cosmological Perturbed Lightcone Gauge

The lightcone gauge is a set of what are called the observational coordinates adapted to our past lightcone. We develop this gauge by producing a perturbed spacetime metric that describes the geometry of our past lightcone where observations are usually obtained. We connect the produced observationa...

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Bibliographic Details
Main Author: Maye Elmardi
Format: Article
Language:English
Published: MDPI AG 2018-10-01
Series:Universe
Subjects:
general relativity
past lightcone gauge
direct observational approach
cosmological observables
galaxy surveys
galaxy number count
density contrast
overdensity
cosmological perturbations
Online Access:http://www.mdpi.com/2218-1997/4/10/108

Internet

http://www.mdpi.com/2218-1997/4/10/108

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