Uniform sky glow (CMB) observed through the throat of a wormhole

TL;DR

This paper investigates how a Morris-Thorne wormhole affects the observation of the cosmic microwave background, revealing complex image structures and potential observational signatures.

Contribution

It provides a detailed analysis of the visual appearance of a wormhole against the CMB, including multiple images and ring structures, and constructs synthetic images for observational comparison.

Findings

Stars produce multiple images through the wormhole

Sky glow images contain ring structures

Constructed synthetic wormhole images against CMB background

Abstract

The problem of the possibility of observing a uniform sky glow through the throat of a Morris--Thorne wormhole by an observer located in another asymptotically flat space-time is considered. It is shown that an individual star has multiple images, and the image of a luminous sky has a complex structure and contains ring structures. The reasons for the emergence of such structures are considered. The distribution of radiation intensity in the image along the radial coordinate is constructed.In addition, an image of the Morris-Thorne wormhole was constructed against the background of uniform sky radiation in the observer's space. A comparison to observations can be made by producing a synthetic Morris-Thorne type wormhole image against a CMB background. This image has been constructed by a combination of the images for inner and outer areas.