Spectral lines of dirty wormholes
Leonardo K. S. Furuta, Renan B. Magalh\~aes, Haroldo C. D. Lima Junior, Lu\'is C. B. Crispino

TL;DR
This paper explores how surrounding matter affects the spectral lines of wormholes, revealing that despite environmental influences, key spectral features of the wormhole remain detectable.
Contribution
It introduces the study of astrophysical environment effects on the spectral lines of dirty wormholes, highlighting the persistence of spectral signatures despite surrounding matter.
Findings
New stable light rings can form around dirty wormholes.
Astrophysical matter can alter absorption bands but not hide core spectral features.
Spectral lines largely preserved despite dense surrounding matter.
Abstract
Astrophysical objects like black holes are usually surrounded by matter in the form of accretion disks or jets of matter. These astrophysical scenarios are expected to introduce novel phenomenology in the scattering of particles and fields. Wormholes are viable candidates for exotic compact objects that can mimic some black hole properties. Hence, it is natural to wonder what would happen if the central astrophysical object were a wormhole, instead of a black hole. We investigate the astrophysical environment effect on the absorption of a massless scalar field by a dirty wormhole surrounded by a thick shell of matter. We study null geodesics around these dirty wormholes and analyze under which conditions new pairs of light rings can appear. The presence of new stable light rings allows new quasibound states in the spacetime, apart from the ones trapped near the throat. Thus, the…
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Taxonomy
TopicsAstrophysical Phenomena and Observations · Galaxies: Formation, Evolution, Phenomena · Pulsars and Gravitational Waves Research
