The Influence of Deformation in Compact Objects on Redshift and Radar Echo Delay

Authors

DOI:

https://doi.org/10.26577/RCPh.2024v88i1a01
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Keywords:

compact object, refractive index, gravitational redshift, radar echo delay, material medium approach

Abstract

The analogy between optics and mechanics provides a unified way to describe particle motion in mechanics and light propagation in geometrical optics, and recent publications have demonstrated that this analogy can also be applied to general relativity, specifically when dealing with static metrics. In this paper, we use the material medium approach to obtain the refractive index associated with the gravitational field of a compact object having a quadrupole moment. Within this approach, we explore well-known effects of general relativity such as redshift and radar echo delay, deriving mathematical expressions for these phenomena taking into account the influence of the quadrupole moment.

Author Biographies

N.А. Beissen, Al-Farabi Kazakh National University, Almaty, Kazakhstan

Cand. of Phys. and Math. Sc., Ass.Prof., Dean of the Faculty of Physics and Technology, email: nurzada.beissen@kaznu.edu.kz.

D.S. Utepova, Abai Kazakh National Pedagogical University, Almaty, Kazakhstan

PhD student, email: utepova_daniya@mail.ru

V.N. Kossov, Abai Kazakh National Pedagogical University, Almaty, Kazakhstan

Dr. of Phys. and Math. Sc., Prof., email: kosov_vlad_nik@list.ru

S. Toktarbay, Al-Farabi Kazakh National University, Kazakh National Women's Teacher Training University, Kazakhstan,Almaty

PhD, Senior Lecture, email: Saken.Toktarbay@kaznu.edu.kz

M.K. Khassanov, Al-Farabi Kazakh National University, Kazakhstan, Almaty

PhD, Senior Lecture, email: Manas.Khassanov@kaznu.edu.kz

T. Yernazarov, Al-Farabi Kazakh National University, Kazakhstan, Almaty

PhD student, email: Tursynbek.Yernazarov@kaznu.edu.kz

M. Seydalieva, Al-Farabi Kazakh National University, Kazakhstan, Almaty

PhD student, email: Madina.Seydalieva@kaznu.edu.kz

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How to Cite

Beissen, N., Utepova, D., Kossov, V., Toktarbay, S., Khassanov, M., Yernazarov, T., & Seydalieva, M. (2024). The Influence of Deformation in Compact Objects on Redshift and Radar Echo Delay. Recent Contributions to Physics (Rec.Contr.Phys.), 88(1), 4–11. https://doi.org/10.26577/RCPh.2024v88i1a01

Issue

Vol. 88 No. 1 (2024): Recent Contributions to Physics

Section

Theoretical Physics. Nuclear and Elementary Particle Physics. Astrophysics

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