Fig. 7
Gravitational redshift at the neutron star surface as a function of the stellar gravitational mass for the two considered EOS models. The horizontal lines represent the measured gravitational redshift z = 0.35 for the X-ray burst source in the low-mass X-ray binary EXO 07482−676 (Cottam et al. 2002) and 
for the isolated neutron star RX J0720.4−3125 (Hambaryan et al. 2017).
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