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Physics  2011 

Can the maximum mass of neutron stars rule out any equation of state of dense stellar matter before gravity is well understood?

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Probably No! As an example, using soft EOSs consistent with existing terrestrial nuclear laboratory experiments for hybrid neutron stars containing a quark core described with MIT bag model using reasonable parameters, we show that the recently discovered new holder of neutron star maximum mass PSR J1614-2230 of $1.97\pm0.04M_{\odot}$ can be well described by incorporating a Yukawa gravitational correction that is consistent with existing constraints from neutron-proton and neutron-lead scatterings as well as the spectroscopy of antiproton atoms.


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