Hot super-dense compact object with particular EoS
- Creators
- Tito, E. P.
- Pavlov, V. I.
Abstract
We show the possibility of existence of a self-gravitating spherically-symmetric equilibrium configuration for a neutral matter with neutron-like density, small mass M≪M⊙, and small radius R≪R⊙. We incorporate the effects of both the special and general theories of relativity. Such object may be formed in a cosmic cataclysm, perhaps an exotic one. Since the base equations of hydrostatic equilibrium are completed by the equation of state (EoS) for the matter of the object, we offer a novel, interpolating experimental data from high-energy physics, EoS which permits the existence of such compact system of finite radius. This EoS model possesses a critical state characterized by density ρ_c and temperature T_c. For such an object, we derive a radial distribution for the super-dense matter in "liquid" phase using Tolman–Oppenheimer–Volkoff equations for hydrostatic equilibrium. We demonstrate that a stable configuration is indeed possible (only) for temperatures smaller than the critical one. We derive the mass-radius relation (adjusted for relativistic corrections) for such small (M≪M⊙M≪M⊙) super-dense compact objects. The results are within the constraints established by both heavy-ion collision experiments and theoretical studies of neutron-rich matter.
Additional Information
© 2018 Springer Science+Business Media B.V., part of Springer Nature. Received: 28 October 2017; Accepted: 27 January 2018; First Online: 07 February 2018.Attached Files
Submitted - 1603.03427.pdf
Files
Name | Size | Download all |
---|---|---|
md5:50932b87de2761b8b5bd79c94b28d271
|
489.2 kB | Preview Download |
Additional details
- Alternative title
- Spherical configuration of a super-dense hot compact object with particular EoS
- Eprint ID
- 88636
- DOI
- 10.1007/s10509-018-3260-y
- Resolver ID
- CaltechAUTHORS:20180807-144353134
- Created
-
2018-08-07Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field