Astrophysics

   

The Significant Improvement of The Upper Mass Limit of The White Dwarf Star

Authors: Ting-Hang Pei

Traditional explanation for the white dwarf star is based on the ideally degenerate Fermi electron gas to produce the pressure against gravity. This theory predicts the upper mass limit of the white dwarf star is 1.44 times as large as our sun although the Fermi electron gas is treated at the temperature of absolute zero. In this research, first we estimate the temperature effect and find the correction only about 1/100 at 10^7 K and about 1/10 at 10^8 K. Because some parts of this Fermi electron gas are the relativistic electrons, then we consider that some electrons can escape the gravity resulting in a positive charged star. These rest positive charges produce strong repulsive force and the pressure to against gravity. This positive-charged effect makes the upper mass limit higher than the previous value. One demonstration shows that when the rest positive charges is 1.406x10^4 C and the radius of the white dwarf star is the same as Earth, its upper mass limit can be 1.98 times as large as our sun.

Comments: 9 Pages.

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Submission history

[v1] 2018-07-07 12:47:52
[v2] 2018-07-08 07:12:28

Unique-IP document downloads: 12 times

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