RT Journal Article
T1 Testing gravity with the latent heat of neutron star matter
A1 Navarro Moreno, Pablo
A1 Wojnar, Aneta Magdalena
A1 Llanes Estrada, Felipe José
AB The Seidov limit is a bound on the maximum latent heat that a presumed first-order phase transition of neutron-star matter can have before its excess energy density, not compensated by additional pressure, results in gravitational collapse. Because latent heat forces an apparent nonanalytic behaviour in plots correlating physical quantities (kinks in two-dimensional, ridges in three-dimensional ones), it can be constrained by data. As the onset of collapse depends on the intensity of gravity, testing for sudden derivative changes and, if they are large, breaching the Seidov limit would reward with two successive discoveries: such a phase transition (which could stem from hadron matter but also from a gravitational phase transition), and a modification of General Relativity (thus breaking the matter/gravity degeneracy). We illustrate the point with f (R) = R + alpha R 2 metric gravity.
PB IOP Publishing
SN 1475-7516
YR 2025
FD 2025-01-08
LK https://hdl.handle.net/20.500.14352/122548
UL https://hdl.handle.net/20.500.14352/122548
LA eng
NO Pablo Navarro Moreno et al JCAP01(2025)015
NO PRX23/00225.IJC2020-044751-I.
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO Agencia Estatal de Investigación (España)
NO European Commission
DS Docta Complutense
RD 17 dic 2025