White dwarfs in an ungravity-inspired model

TL;DR

This paper investigates how an ungravity-inspired model affects white dwarf star properties, providing bounds on model parameters and exploring implications for stellar limits and positions on the Hertzsprung-Russell diagram.

Contribution

It introduces an ungravity-inspired framework to analyze white dwarf parameters, estimating bounds on model parameters and examining effects on stellar limits and classifications.

Findings

Bounds on ungravity model parameters derived from observed white dwarf data.

UG effect on the Chandrasekhar limit demonstrated.

New potential locations for some white dwarfs on the Hertzsprung-Russell diagram identified.

Abstract

An ungravity-inspired model is employed to examine the astrophysical parameters of white dwarf stars (WDs) using polytropic and degenerate gas approaches. Based on the observed properties such as mass, radius, and luminosity of selected WDs, namely, Sirius B and $\epsilon$ Reticulum, bounds on the characteristic length and scaling dimension of the ungravity (UG) model are estimated. The UG effect on the Chandrasekhar limit for WDs is shown. The UG model is examined in the study of ultra-massive WDs, e.g., EUVE J1746-706. In the contact of UG inspired model, a new location for some WDs on the Hertzsprung-Russell diagram is found.