Constraining the gravitational binding energy of PSR J07373039B using terrestrial nuclear data
Abstract
We show that the gravitational binding energy of a neutron star of a given mass is correlated with the slope of the nuclear symmetry energy at 12 times nuclear saturation density for equations of state without significant softening (i.e., those that predict maximum masses M_{max}>1.44M_{⊙} in line with the largest accurately measured neutron star mass). Applying recent laboratory constraints on the slope of the symmetry energy to this correlation we extract a constraint on the baryon mass of the lower mass member of the double pulsar binary system, PSR J07373039B. We compare with independent constraints derived from modeling the progenitor star of J07373039B up to and through its collapse under the assumption that it formed in an electron capture supernova. The two sets of constraints are consistent only if L≲ 70 MeV.
 Publication:

Physical Review C
 Pub Date:
 December 2009
 DOI:
 10.1103/PhysRevC.80.065809
 arXiv:
 arXiv:0908.1731
 Bibcode:
 2009PhRvC..80f5809N
 Keywords:

 21.65.Ef;
 26.60.Kp;
 97.80.d;
 97.60.Gb;
 Symmetry energy;
 Equations of state of neutronstar matter;
 Binary and multiple stars;
 Pulsars;
 Astrophysics  Solar and Stellar Astrophysics;
 Nuclear Experiment;
 Nuclear Theory
 EPrint:
 18 pages, 4 figures