General parametrization of wormhole spacetimes and its application to shadows and quasinormal modes

KA Bronnikov, RA Konoplya, TD Pappas - Physical Review D, 2021 - APS
The general parametrization for spacetimes of spherically symmetric Lorentzian, traversable
wormholes in an arbitrary metric theory of gravity is presented. The parametrization is similar …

Wormhole shadows

T Ohgami, N Sakai - Physical Review D, 2015 - APS
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 a more …

Self-force: computational strategies

B Wardell - Equations of Motion in Relativistic Gravity, 2015 - Springer
Building on substantial foundational progress in understanding the effect of a small body's
self-field on its own motion, the past 15 years has seen the emergence of several strategies …

Gravitational waves from quasinormal modes of a class of Lorentzian wormholes

S Aneesh, S Bose, S Kar - Physical Review D, 2018 - APS
Quasinormal modes of a two-parameter family of Lorentzian wormhole spacetimes, which
arise as solutions in a specific scalar-tensor theory associated with braneworld gravity, are …

Image of an accreting general Ellis-Bronnikov wormhole

VA Ishkaeva, SV Sushkov - Physical Review D, 2023 - APS
Gravitational lensing properties of supermassive astrophysical objects, such as black holes
and wormholes, provide a realistic way for their discovering and investigating. Various …

Wormhole shadows in rotating dust

T Ohgami, N Sakai - Physical Review D, 2016 - APS
As an extension of our previous work, which investigated the shadows of the Ellis wormhole
surrounded by nonrotating dust, in this paper we study wormhole shadows in a rotating dust …

Geodesic analysis and steady accretion on a traversable wormhole

A Rueda, E Contreras - Annals of Physics, 2023 - Elsevier
In this work, we analyze the behavior of light and matter as they pass near and through a
traversable wormhole throat. In particular, we study the trajectories of massive and massless …

Particle motion around traversable wormholes: Possibility of closed timelike geodesics

A Dutta, D Roy, S Chakraborty - New Astronomy, 2024 - Elsevier
The present work investigates the general wormhole solution in Einstein gravity with an
exponential shape function around an ultrastatic and a finite redshift geometry. The …

Confined-exotic-matter wormholes with no gluing effects—imaging supermassive wormholes and black holes

M Azreg-Aïnou - Journal of Cosmology and Astroparticle Physics, 2015 - iopscience.iop.org
We classify wormholes endowed with redshift effects and finite mass into three types. Type I
wormholes have their radial pressure dying out faster, as one moves away from the throat …

Theory-agnostic parametrization of wormhole spacetimes

TD Pappas - arXiv preprint arXiv:2311.10481, 2023 - arxiv.org
We present a generalization of the Rezzolla-Zhidenko theory-agnostic parametrization of
black-hole spacetimes to accommodate spherically-symmetric Lorentzian, traversable …