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arXiv · 2604.04617

Preliminary study on the impact of stress-energy tensor compared to scalar field in Nonminimal Derivative model

Ilham Prasetyo·Bobby Eka Gunara·Agus Suroso
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Abstract

In this article, we report the results of comparing the effect of using trace of stress-energy tensor versus real-valued scalar field in Nonminimal Derivative Coupling gravitation model, respectively denoted as NMDC-T and NMDC-phi. We employ the model into an incompressible star and see the effect of both models NMDC-T and NMDC-phi on the compactness and mass-radius relation. We find that coupling parameters of NMDC-T is less sensitive than NMDC-phi.

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Ilham Prasetyo, Bobby Eka Gunara, Agus Suroso. 2026-04-06. Preliminary study on the impact of stress-energy tensor compared to scalar field in Nonminimal Derivative model. https://doi.org/10.1142/s0217732326420095

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