A new quark-hadron hybrid equation of state for astrophysics-I. High-mass twin compact stars

S Benić, D Blaschke, DE Alvarez-Castillo… - Astronomy & …, 2015 - aanda.org
Aims. We present a new microscopic hadron-quark hybrid equation of state model for
astrophysical applications, from which compact hybrid star configurations are constructed …

Phases of dense matter in compact stars

D Blaschke, N Chamel - The Physics and Astrophysics of Neutron Stars, 2018 - Springer
Formed in the aftermath of gravitational core-collapse supernova explosions, neutron stars
are unique cosmic laboratories for probing the properties of matter under extreme conditions …

Third family of compact stars within a nonlocal chiral quark model equation of state

DE Alvarez-Castillo, DB Blaschke, AG Grunfeld… - Physical Review D, 2019 - APS
A class of hybrid compact star equations of state is investigated that joins by a Maxwell
construction a low-density phase of hadronic matter, modeled by a relativistic mean-field …

Compact stars with sequential QCD phase transitions

M Alford, A Sedrakian - Physical review letters, 2017 - APS
Compact stars may contain quark matter in their interiors at densities exceeding several
times the nuclear saturation density. We explore models of such compact stars where there …

New class of hybrid EoS and Bayesian MR data analysis

D Alvarez-Castillo, A Ayriyan, S Benic… - The European Physical …, 2016 - Springer
We explore systematically a new class of two-phase equations of state (EoS) for hybrid stars
that is characterized by three main features: 1) stiffening of the nuclear EoS at …

Quark-nuclear hybrid star equation of state with excluded volume effects

MAR Kaltenborn, NUF Bastian, DB Blaschke - Physical Review D, 2017 - APS
A two-phase description of the quark–nuclear matter hybrid equation of state that takes into
account the effect of excluded volume in both the hadronic and the quark-matter phases is …

Hybrid equation of state with pasta phases, and third family of compact stars

K Maslov, N Yasutake, D Blaschke, A Ayriyan… - Physical Review C, 2019 - APS
The effect of pasta phases on the quark-hadron phase transition is investigated for a set of
relativistic mean-field equations of state for both hadron and quark matter. The results of the …

High-mass twin stars with a multipolytrope equation of state

DE Alvarez-Castillo, DB Blaschke - Physical Review C, 2017 - APS
We show that in the three-polytrope model of Hebeler et al.[Astrophys. J. 773, 11 (2013)
AJLEEY 0004-637X 10.1088/0004-637X/773/1/11] for the neutron star equation of state …

First-order phase transition from hypernuclear matter to deconfined quark matter obeying new constraints from compact star observations

M Shahrbaf, D Blaschke, AG Grunfeld, HR Moshfegh - Physical Review C, 2020 - APS
We reconsider the problem of the hyperon puzzle and its suggested solution by quark
deconfinement within the two-phase approach to hybrid compact stars with recently …

Robustness of third family solutions for hybrid stars against mixed phase effects

A Ayriyan, NU Bastian, D Blaschke, H Grigorian… - Physical Review C, 2018 - APS
We investigate the robustness of third family solutions for hybrid compact stars with a quark
matter core that correspond to the occurrence of high-mass twin stars against a softening of …