| Full text | |
| Author(s): |
Arbanil, Jose D. V.
;
Rodrigues, Lucas S.
;
Lenzi, Cesar H.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | EUROPEAN PHYSICAL JOURNAL C; v. 83, n. 3, p. 12-pg., 2023-03-13. |
| Abstract | |
In this work, we investigate the influence of the phase transition and a stiffer fluid in neutron stars' cores on the static equilibrium configuration, dynamical stability, and tidal deformability. For this aim, it is taken into account that the fluid in the core and the envelope follow the relativistic polytropic equation of state. We find that the phase transition and a stiffer fluid in the core will reflect in the total mass, radius, speed of sound, core radius, radial stability with a slow and rapid conversion at the interface, and tidal deformability. We also investigate the dimensionless tidal deformability lambda(1) and lambda(2) for a binary neutron stars system with chirp mass equal to GW170817. Finally, we contrast our results with observational data to show the role that phase transition and a stiffer core fluid could play in the study of neutron stars. (AU) | |
| FAPESP's process: | 17/05660-0 - Theoretical studies of the structure and reactions of exotic nuclei and many-body systems |
| Grantee: | Brett Vern Carlson |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/05238-9 - Different approaches in the strongly interacting matter study |
| Grantee: | Odilon Lourenço da Silva Filho |
| Support Opportunities: | Regular Research Grants |