White dwarfs in an ungravity-inspired model
Solar and Stellar Astrophysics
2016-06-06 v2 General Relativity and Quantum Cosmology
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 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.
Keywords
Cite
@article{arxiv.1603.09282,
title = {White dwarfs in an ungravity-inspired model},
author = {Orfeu Bertolami and Hodjat Mariji},
journal= {arXiv preprint arXiv:1603.09282},
year = {2016}
}
Comments
18 pages, 4 tables, 5 figures. Version to match the published one at Physical Review D93 (2016) no.10, 104046