Reflection-asymmetric wormholes and their double shadows

@article{49265,
   author = {Wielgus, Maciek and Horák, Jiří and Vincent, Frederic and Abramowicz, Marek},
   article_location = {COLLEGE PK},
   article_number = {8},
   doi = {http://dx.doi.org/10.1103/PhysRevD.102.084044},
   keywords = {SUPERMASSIVE BLACK-HOLE},
   language = {eng},
   issn = {1550-7998},
   journal = {Physical Review D},
   title = {Reflection-asymmetric wormholes and their double shadows},
   url = {https://journals.aps.org/prd/abstract/10.1103/PhysRevD.102.084044},
   volume = {102},
   year = {2020}
}

TY  - JOUR
ID  - 49265
AU  - Wielgus, Maciek - Horák, Jiří - Vincent, Frederic - Abramowicz, Marek
PY  - 2020
TI  - Reflection-asymmetric wormholes and their double shadows
JF  - Physical Review D
VL  - 102
IS  - 8
SP  - "084044-1"-"084044-9"
EP  - "084044-1"-"084044-9"
PB  - AMER PHYSICAL SOC
SN  - 15507998
KW  - SUPERMASSIVE BLACK-HOLE
UR  - https://journals.aps.org/prd/abstract/10.1103/PhysRevD.102.084044
N2  - 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.
ER  - 

WIELGUS, Maciek, Jiří HORÁK, Frederic VINCENT a Marek ABRAMOWICZ. Reflection-asymmetric wormholes and their double shadows. \textit{Physical Review D}. COLLEGE PK: AMER PHYSICAL SOC, 2020, roč.~102, č.~8, s.~''084044-1''-''084044-9'', 9 s. ISSN~1550-7998. Dostupné z: https://dx.doi.org/10.1103/PhysRevD.102.084044.