Self-force as a probe of pressure anisotropies inside relativistic stars

Authors

  • Joaquin Nicholas C. Mercado ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Michael Francis Ian G. Vega II ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Scalar and electromagnetic fields in the exterior of a star contain information about the star's internal structure due to boundary conditions at its radius. Thus, measuring the self-force on the charge associated with the field can be used to probe information about a star's interior such as the strength of the pressure anisotropy of the fluid. Using the equations of state by Raposo et al. [Phys. Rev. D 99, 104072 (2019)], we found that for highly anisotropic stars of the same compactness, the self-force is higher for the more anisotropic star when we consider low compactnesses, which can make self-force a useful probe for anisotropy.

Downloads

Issue

Article ID

SPP-2023-PB-21

Section

Poster Session B (Complex Systems, Simulations, and Theoretical Physics)

Published

2023-07-09

How to Cite

[1]
JNC Mercado and MFIG Vega, Self-force as a probe of pressure anisotropies inside relativistic stars, Proceedings of the Samahang Pisika ng Pilipinas 41, SPP-2023-PB-21 (2023). URL: https://proceedings.spp-online.org/article/view/SPP-2023-PB-21.