Wormhole Shadows

Understand

We propose a new method of detecting Ellis wormholes by use of the images of wormholes surrounded by optically thin dust.

• First, we derive steady solutions of dust and more general medium surrounding the wormhole by solving relativistic Euler equations.
• We find two types of dust solutions: one is a static solution with arbitrary density profile, and the other is a solution of dust which passes into the wormhole and escapes into the other side with constant velocity.
• Next, solving null geodesic equations and radiation transfer equations, we investigate the images of the wormhole surrounded by dust for the above steady solutions.