https://doi.org/10.1140/epjp/s13360-022-02439-7
Regular Article
Properties of rotating neutron stars in light of binary compact object mergers
Department of Physics, Aliah University, ll-A/27, Action Area II, Newtown, 700160, Kolkata, India
Received:
10
October
2021
Accepted:
29
January
2022
Published online:
21
February
2022
The properties of rotating neutron stars are investigated using eight equations of state (EOSs). We also study the relations between various observables corresponding to different angular velocities for all those EOSs. All of these EoSs lead to non-rotating compact stars with maximum masses between 1.8 to 2.25 
. We calculate the moment of inertia and studied its variation with mass and the relation between central energy density and angular momentum. We compare our results with the observational findings from the most massive pulsar PSR J0740+6620 and the heaviest secondary component in the black hole—neutron star merger GW190814. It is noted that the secondary compact object of GW190814 having mass 
might be explained as a rapidly rotating neutron star (NS) with frequency larger than 1000 Hz.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022
