DOAJ Open Access 2024

A class of Taub-NUT-scalar metrics via Ehlers transformations

Ali Derekeh Behrouz Mirza Pouya Heidari Fatemeh Sadeghi Reza Bahani

Abstrak

Abstract We derive a class of Taub-NUT metrics in the presence of a scalar field (TNS) by using Ernst equations and potential, as well as using Ehlers transformations on the exact solutions that was recently introduced in Azizallahi et al. (Nucl Phys B 998:116414, https://doi.org/10.1016/j.nuclphysb.2023.116414 , arXiv:2307.09328 [gr-qc], 2023) and Mirza et al. (Eur Phys J C 83:1161, https://doi.org/10.1140/epjc/s10052-023-12255-7 , arXiv:2307.13588 [gr-qc], 2023). Furthermore, we investigate the effective potential, geodesics, topological charge, quasinormal modes (QNMs) and the deflection angle of light in a gravitational lensing for the obtained class of TNS metrics. We also use conformal transformations to generate a new class of exact solutions of the Einstein-conformal-scalar theory by using the obtained TNS solutions as seed metrics. Finally we compare QNMs of the class of exact solutions.

Topik & Kata Kunci

Astrophysics Nuclear and particle physics. Atomic energy. Radioactivity

Penulis (5)

Ali Derekeh

Behrouz Mirza

Pouya Heidari

Fatemeh Sadeghi

Reza Bahani

Format Sitasi

APA MLA BibTeX

Derekeh, A., Mirza, B., Heidari, P., Sadeghi, F., Bahani, R. (2024). A class of Taub-NUT-scalar metrics via Ehlers transformations. https://doi.org/10.1140/epjc/s10052-024-13490-2

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Informasi Jurnal

Tahun Terbit: 2024
Sumber Database: DOAJ
DOI: 10.1140/epjc/s10052-024-13490-2
Akses: Open Access ✓