J 2020

Reflection-asymmetric wormholes and their double shadows

WIELGUS, Maciek, Jiří HORÁK, Frederic VINCENT and Marek ABRAMOWICZ

Basic information

Original name

Reflection-asymmetric wormholes and their double shadows

Authors

WIELGUS, Maciek, Jiří HORÁK (203 Czech Republic), Frederic VINCENT and Marek ABRAMOWICZ (616 Poland, belonging to the institution)

Edition

Physical Review D, COLLEGE PK, AMER PHYSICAL SOC, 2020, 1550-7998

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/47813059:19630/20:A0000062

Organization unit

Institute of physics in Opava

DOI

UT WoS

000580363000001

Keywords in English

SUPERMASSIVE BLACK-HOLE

Tags

Tags

International impact, Reviewed

Links

LTI17018, research and development project.
Změněno: 19/4/2021 12:46, Mgr. Pavlína Jalůvková

Abstract

V originále

We discuss construction and observational properties of wormholes obtained by connecting two Reissner-Nordstrom spacetimes with distinct mass and charge parameters. These objects are spherically symmetric, but not reflection symmetric, as the connected spacetimes differ. The reflection-asymmetric wormholes may reflect a significant fraction of the infalling radiation back to the spacetime of its origin. We interpret this effect in a simple framework of the effective photon potential. Depending on the model parameters, image of such a wormhole seen by a distant observer (its "shadow") may contain a photon ring formed on the observer's side, photon ring formed on the other side of the wormhole, or both photon rings. These unique topological features would allow us to firmly distinguish this class of objects from Kerr black holes using radioastronomical observations.