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The Self-Gravity of Pressure in Neutron Stars · Around

2008

The Self-Gravity of Pressure in Neutron Stars

Schwab, Josiah, Hughes, Scott A., Rappaport, Saul

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Following an earlier analysis which examined the effect of the self-gravity of pressure on big-bang nucleosynthesis (BBN), we explore the effect of pressure's self-gravity on the structure of neutron stars.

We construct an ad hoc modification of the Tolman-Oppenheimer-Volkoff equation wherein pressure's self-gravity is parameterized by a constant, $\chi$, with $0 \le \chi \le 1$.
The full general relativistic contribution to the gravity of pressure is recovered with $\chi = 1$, and is eliminated when $\chi = 0$.
This formulation is not proposed as an alternative theory of gravity, but is merely used to quantify the extent to which the self-gravity of pressure contributes to the structure of dense objects.

Built on

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