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We study the hadron-quark phase transition in the interior of neutron stars (NS's). We calculate the equation of state (EOS) of hadronic matter using the Brueckner-Bethe-Goldstone formalism with realistic two-body and three-body forces, as…

Nuclear Theory · Physics 2009-11-07 G. F. Burgio , M. Baldo , H. -J. Schulze , P. K. Sahu

We investigate the phase transition to a deconfined phase and the consequences in the formation of neutron stars. We use the recently proposed effective field theory motivated relativistic mean field theory for hadron and the MIT Bag model…

Nuclear Theory · Physics 2008-11-26 B. K. Sharma , P. K. Panda , S. K. Patra

Gravitational waves emitted from the binary neutron star (BNS) systems can carry information about the dense matter phase in these compact stars. The crust-core interfacial mode is an oscillation mode in a neutron star and it depends mostly…

High Energy Astrophysical Phenomena · Physics 2023-05-03 Jiaxiang Zhu , Chuming Wang , Chengjun Xia , Enping Zhou , Yiqiu Ma

The properties of the neutron stars are calculated for the hadronic matter within the density-dependent relativistic mean-field model (DD-RMF). The phase transition to the quark matter is studied and the hybrid star matter properties are…

Nuclear Theory · Physics 2021-09-09 I. A. Rather , A. A. Usmani , S. K. Patra

Among the various oscillation modes of neutron stars, f- and g- modes are the most likely to be ultimately observed in binary neutron star mergers. The f-mode is known to correlate in normal neutron stars with their tidal deformability,…

High Energy Astrophysical Phenomena · Physics 2022-12-14 Tianqi Zhao , James M. Lattimer

We consider the possibility of having hybrid stars with a phase transition from hadrons into strange matter at the core of a neutron star in b equilibrium. For the hadron phase equation of state (EoS) the quark-meson coupling model is used,…

High Energy Physics - Phenomenology · Physics 2021-02-24 Wasif Husain , Anthony W. Thomas

In order to actually see the hadron-quark transition happening in a neutron star, we point out and study two static conditions (the transition hadronic density must be lower than the neutron star maximum hadronic density; the neutron star…

Nuclear Theory · Physics 2009-10-30 F. Grassi

We perform an extensive study of equation of state (EoS) models featuring a phase transition from hadronic to deconfined quark matter in neutron star merger simulations. We employ three different hadronic EoSs, a constant speed of sound…

High Energy Astrophysical Phenomena · Physics 2025-12-12 Sebastian Blacker , Andreas Bauswein

We study the importance of the thermal behavior of the hadron-quark phase transition in neutron star (NS) mergers. To this end, we devise a new scheme approximating thermal effects to supplement any cold, barotropic hybrid equation of state…

High Energy Astrophysical Phenomena · Physics 2023-10-02 Sebastian Blacker , Andreas Bauswein , Stefan Typel

Phase transition from hadronic matter to quark-gluon matter is discussed for various regimes of temperature and baryon number density. For small and medium densities, the phase transition is accurately described in the framework of the…

High Energy Physics - Phenomenology · Physics 2011-04-05 M. I. Krivoruchenko , D. K. Nadyozhin , T. L. Rasinkova , Yu. A. Simonov , M. A. Trusov , A. V. Yudin

The composition of the core of neutron stars (NS) is still under debate. One possibility is that because of the high densities reached in their cores, matter could be deconfined into quark matter. We investigate the existence of hybrid…

Nuclear Theory · Physics 2026-02-20 Milena Albino , Tuhin Malik , Márcio Ferreira , Constança Providência

We investigate the influence of a phase transition from hadronic matter to a deconfined quark phase inside a neutron star on its cooling behaviour including the appearance of twin star solutions in the mass-radius diagram. We find that…

High Energy Astrophysical Phenomena · Physics 2025-02-21 Melissa Mendes , Jan-Erik Christian , Farrukh J. Fattoyev , Jürgen Schaffner-Bielich

The interiors of neutron stars enjoy ideal conditions for the conversion of hadrons to a strange quark phase, theorized to be the stablest form of matter. Though numerous astrophysical means to prompt such a deconfinement phase transition…

High Energy Physics - Phenomenology · Physics 2025-07-16 Aryaman Bhutani , Nirmal Raj , Zenia Zuraiq

Tentative evidence suggests that the cores of massive neutron stars consist of deconfined quark matter. We argue that the formation of such a quark matter core during a galactic supernova could be accompanied by the emission of…

High Energy Physics - Phenomenology · Physics 2026-03-20 Katarina Bleau , Joachim Kopp , Jiheon Lee , Jorinde van de Vis

Quantum Chromodynamics predicts phase transition from hadronic matter to quark matter at high density, which is highly probable in astrophysical systems like binary neutron star mergers. To explore the critical density where such phase…

High Energy Astrophysical Phenomena · Physics 2024-01-11 Shamim Haque , Ritam Mallick , Shashikesh Kumar Thakur

We investigate the properties of the hadron-quark mixed phase, often termed the \textit{pasta} phase, expected to exist in the cores of massive neutron stars. To construct the equations of state (EoS), we combine an analytical…

Nuclear Theory · Physics 2024-03-22 Mauro Mariani , Germán Lugones

We will follow the two-families scenario described in the accompanying paper, in which compact stars having a very small radius and masses not exceeding about 1.5$M_\odot$ are made of hadrons, while more massive compact stars are quark…

Solar and Stellar Astrophysics · Physics 2016-03-23 Alessandro Drago , Giuseppe Pagliara

The phase transition to a deconfined phase is studied and the consequences in the formation of neutron stars are investigated. We use the quark-meson-coupling model for the hadron matter and the MIT Bag model for the quark matter in order…

Nuclear Theory · Physics 2009-11-10 P. K. Panda , D. P. Menezes , C. Providência

We describe charge-neutral neutron star matter in $\beta-$equilibrium using hybrid equations of state, where a first-order phase transition from hadronic to quark matter is realized. The hadronic matter is described in a model-independent…

Nuclear Theory · Physics 2020-07-21 Márcio Ferreira , Renan Câmara Pereira , Constança Providência

We present a study of hybrid neutron stars with color superconducting quark matter cores at finite temperature that results in sequences of stars with constant entropy per baryon, $s/n_B={\rm const}$. For the quark matter equation of state,…

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