Photons shells inner structure and causal properties

J 2025

Photons shells inner structure and causal properties

PUGLIESE, Daniela and Zdeněk STUCHLÍK

Basic information

Original name

Photons shells inner structure and causal properties

Authors

PUGLIESE, Daniela and Zdeněk STUCHLÍK

Edition

Journal of High Energy Astrophysics, 2025, 2214-4048

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10308 Astronomy

Country of publisher

Netherlands

Confidentiality degree

is not subject to a state or trade secret

References:

URL

Impact factor

Impact factor: 10.500 in 2024

Organization unit

Institute of physics in Opava

DOI

https://doi.org/10.1016/j.jheap.2025.100368

UT WoS

001452761400001

EID Scopus

2-s2.0-105000106813

Keywords in English

Lense-Thirring-black holes-accretion;disks-accretion;Hydrodynamics-galaxies: actives

Abstract

In the original language

We shed light on some causal properties of the Kerr super-spinnars emerging through the investigation of the spacetimes photon shells. We define inner structure of the spacetime photon shell, constituted by regions distinguished by specific characteristics of the photons paths. These regions are reflected in the singularity shadow boundaries studied, in particular, in relation to repulsive gravity effects, known in a specific class of slowly spinning super-spinnars. Counter-rotating and co-rotating photons are particularly investigated. Super fast spinning solutions are characterized by "faint" shadow boundaries. The properties emerging from this analysis could be observed from specific regions of the spacetimes photon spheres boundaries. Slowly spinning superspinnars, with (dimensionless) spin 1.

Cite

PUGLIESE, Daniela and Zdeněk STUCHLÍK. Photons shells inner structure and causal properties. Journal of High Energy Astrophysics. 2025, vol. 47, July 2025, p. "47-1"-"47-25", 25 pp. ISSN 2214-4048. Available from: https://doi.org/10.1016/j.jheap.2025.100368.

@article{90054,
   author = {Pugliese, Daniela and Stuchlík, Zdeněk},
   article_number = {July 2025},
   doi = {https://doi.org/10.1016/j.jheap.2025.100368},
   keywords = {Lense-Thirring-black holes-accretion;disks-accretion;Hydrodynamics-galaxies: actives},
   language = {eng},
   issn = {2214-4048},
   journal = {Journal of High Energy Astrophysics},
   title = {Photons shells inner structure and causal properties},
   url = {https://www.sciencedirect.com/science/article/pii/S2214404825000497?pes=vor&utm_source=clarivate&getft_integrator=clarivate},
   volume = {47},
   year = {2025}
}

TY  - JOUR
ID  - 90054
AU  - Pugliese, Daniela - Stuchlík, Zdeněk
PY  - 2025
TI  - Photons shells inner structure and causal properties
JF  - Journal of High Energy Astrophysics
VL  - 47
IS  - July 2025
SP  - "47-1"-"47-25"
EP  - "47-1"-"47-25"
SN  - 22144048
KW  - Lense-Thirring-black holes-accretion;disks-accretion;Hydrodynamics-galaxies: actives
UR  - https://www.sciencedirect.com/science/article/pii/S2214404825000497?pes=vor&utm_source=clarivate&getft_integrator=clarivate
N2  - We shed light on some causal properties of the Kerr super-spinnars emerging through the investigation of the spacetimes photon shells. We define inner structure of the spacetime photon shell, constituted by regions distinguished by specific characteristics of the photons paths. These regions are reflected in the singularity shadow boundaries studied, in particular, in relation to repulsive gravity effects, known in a specific class of slowly spinning super-spinnars. Counter-rotating and co-rotating photons are particularly investigated. Super fast spinning solutions are characterized by "faint" shadow boundaries. The properties emerging from this analysis could be observed from specific regions of the spacetimes photon spheres boundaries. Slowly spinning superspinnars, with (dimensionless) spin 1.
ER  -

PUGLIESE, Daniela and Zdeněk STUCHLÍK. Photons shells inner structure and causal properties. \textit{Journal of High Energy Astrophysics}. 2025, vol.~47, July 2025, p.~''47-1''-''47-25'', 25 pp. ISSN~2214-4048. Available from: https://doi.org/10.1016/j.jheap.2025.100368.

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