Open AccessConstraints on the dense matter equation of state from the measurements of PSR J0737−3039A moment of inertia and PSR J0751+1807 mass
Author(s) -
Bejger M.,
Bulik T.,
Haensel P.
Publication year - 2005
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2005.09575.x
Subject(s) - neutron star , physics , moment of inertia , pulsar , equation of state , astrophysics , moment (physics) , binary number , range (aeronautics) , binary star , inertia , classical mechanics , stars , quantum mechanics , materials science , arithmetic , mathematics , composite material
The moment of inertia of the pulsar A in the neutron star binary J0737−3039 will soon be measurable through detailed measurements of the periastron advance. We present the calculation of the moment of inertia of neutron stars with the masses of the components of the binary J0737−3039 for a broad range of equations of state of dense matter, and we discuss the implications of such measurement for constraining the equation of state. An observational determination of the moment of inertia of the pulsar A in J0737−3039 with the accuracy of 10 per cent will narrow down considerably the range of viable equations of state. We also show that limits on the maximal mass of a neutron star provide a complementary set of constraints on the properties of dense nuclear matter.