TY  - JOUR
A1  - Jakobus, Pia
A1  - Motornenko, Anton
A1  - Gomes, Rosana de Oliveira
A1  - Steinheimer, Jan
A1  - Stöcker, Horst
T1  - The possibility of twin star solutions in a model based on lattice QCD thermodynamics
T2  - The European physical journal. C, Particles and fields
N2  - The properties of compact stars and in particular the existence of twin star solutions are investigated within an effective model that is constrained by lattice QCD thermodynamics. The model is modified at large baryon densities to incorporate a large variety of scenarios of first order phase transitions to a phase of deconfined quarks. This is achieved by matching two different variants of the bag model equation of state, in order to estimate the role of the Bag model parameters on the appearance of a second family of neutron stars. The produced sequences of neutron stars are compared with modern constrains on stellar masses, radii, and tidal deformability from astrophysical observations and gravitational wave analyses. It is found that those scenarios in our analysis, in which a third family of stars appeared due to the deconfinement transition, are disfavored from astrophysical constraints.
Y1  - 2021
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/86346
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-863464
SN  - 1434-6052
VL  - 81.2021
IS  - 1, article number 41
PB  - Springer
CY  - Berlin ; Heidelberg
ER  -