Regular black hole formation and gamma-ray burst from matter conversion
5 affiliations
- 1Shanghai Institute for Advanced Studies
- 2University of Science and Technology of China
- 3Herzen State Pedagogical University of Russia
- 4Khazar University
- 5SPB Branch of SAO RAS
Abstract
During the gravitational collapse of a massive star into a regular black hole, a new form of matter must be produced in order to prevent the formation of a central singularity. Since such matter is not present in the initial stellar configuration, it must emerge dynamically during the collapse. This formation process is expected to be accompanied by a strong release of energy in the form of electromagnetic radiation, which may be observable. Here we investigate the gravitational collapse of baryonic matter into Dymnikova–Hayward–Bardeen regular black holes. We estimate the radiation density and the corresponding bolometric luminosity generated by the formation of the matter sector responsible for singularity avoidance. We show that such processes provide a possible mechanism for gamma-ray bursts. Moreover, compatibility with gamma-ray bursts requires small regularization effects. As a result, the corresponding regular black holes differ weakly from the Schwarzschild black hole.
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BibTeX
@article{vertogradov2026regular,
title = {{Regular black hole formation and gamma-ray burst from matter conversion}},
author = {Vitalii Vertogradov and Zhanna Kuznetsova and Yu Shi},
journal = {The European Physical Journal C},
year = {2026},
month = oct,
doi = {10.1140/epjc/s10052-026-16452-y},
url = {https://link.springer.com/article/10.1140/epjc/s10052-026-16452-y},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Regular black hole formation and gamma-ray burst from matter conversion
AU - Vitalii Vertogradov
AU - Zhanna Kuznetsova
AU - Yu Shi
PY - 2026
DA - 2026/10/22
JO - The European Physical Journal C
DO - 10.1140/epjc/s10052-026-16452-y
UR - https://link.springer.com/article/10.1140/epjc/s10052-026-16452-y
AB - During the gravitational collapse of a massive star into a regular black hole, a new form of matter must be produced in order to prevent the formation of a central singularity. Since such matter is not present in the initial stellar configuration, it must emerge dynamically during the collapse. This formation process is expected to be accompanied by a strong release of energy in the form of electromagnetic radiation, which may be observable. Here we investigate the gravitational collapse of baryonic matter into Dymnikova–Hayward–Bardeen regular black holes. We estimate the radiation density and the corresponding bolometric luminosity generated by the formation of the matter sector responsible for singularity avoidance. We show that such processes provide a possible mechanism for gamma-ray bursts. Moreover, compatibility with gamma-ray bursts requires small regularization effects. As a result, the corresponding regular black holes differ weakly from the Schwarzschild black hole.
SN - 1434-6044
SN - 1434-6052
ER -