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Study of Beta Equilibrated 2+1 Flavor Quark Matter in PNJL Model
Study of Beta Equilibrated 2+1 Flavor Quark Matter in PNJL Model
2011/10/14
The QCD phase diagram of 2+1 flavour quark matter in $\beta$ equilibrium is studied within the framework of PNJL model. Signatures for first order phase transition can be seen in high baryon chemical ...
Hybrid stars with the Dyson-Schwinger quark model
Hybrid stars Dyson-Schwinger quark model
2011/10/18
We study the hadron-quark phase transition in the interior of neutron stars. For the hadronic sector we use a microscopic equation of state involving nucleons and hyperons derived within the Brueckner...
Magnetic properties of quark matter are discussed in the light of the observation of pulsars. Our works about spontaneous spin polarization and spin density wave are reviewed and their implications on...
Towards Quark Deconfinement in Neutron Stars via Spindown: Gravitational Waves or Magnetic Braking?
Quark Deconfinement Neutron Stars Gravitational Waves Magnetic Braking
2011/9/28
A phase of interacting quark matter can arise inside the dense core of isolated neutron stars when they have been sufficiently spun down from their initial rapidly rotating configuration. In this work...
Pasta Structures of Quark-Hadron Phase Transition in Proto-Neutron Stars
Pasta Structures Quark-Hadron Phase Transition
2011/1/11
We study the quark-hadron mixed phase in proto-neutron stars with the finite-size effects. In the calculations of pasta structures appeared in the mixed phase, the Gibbs conditions require the pressur...
Quark nova imprint in the extreme supernova explosion SN 2006gy: the advent of the Quark Star
Quark nova imprint the extreme supernova explosion SN 2006gy
2011/1/11
The existence of quark stars has until now been purely hypothetical. In this work, we uncover undeniable evidence of these exotic objects with far reaching implications to various branches of physics ...
In this paper we investigate the thermal evolution of hybrid stars, objects composed of a quark
matter core, enveloped by ordinary hadronic matter. Our purpose in this paper is to investigate
how im...
Dark quark domains
Dark quark domains
2010/11/16
Formation of stable domains filled with strongly correlated coherent quark matter is discussed in general terms and is exemplified further in the framework of the Generalised Nambu–Jona-Lasinio model....
Photon spectra from quark generation by WIMPs
Dark matter indirect searches WIMPs photon spectra and quark pairs annihilation
2010/11/16
If the present dark matter (DM) in the Universe annihilates into Standard Model (SM)particles, it must contribute to the gamma ray fluxes that are detected on the Earth. The magnitude of such contribu...
The revival of an explosion mechanism of massive stars - the quark hadron phase transition during the early post bounce phase of core collapse supernovae
Core collapse supernovae protoneutron stars general relativity radiation hydrodynamics
2010/11/16
We explore explosions of massive stars, which are triggered via the quark hadron phase transition during the early post bounce phase of core collapse supernovae. The onset of quark matter is favored u...
If the dark matter of our galaxy is composed of nuggets of quarks or antiquarks in a colour superconducting phase there will be a small but non-zero ux of these objects through the Earth's atmosphere.
Magnetars as Highly Magnetized Quark Stars: an analytical treatment
High Energy Astrophysical Phenomena (astro-ph.HE)
2011/1/6
We present an analytical model of a magnetar as a high density magnetized quark bag. The effect of strong magnetic fields (B > 5 x 10^{16} G) in the equation of state is considered. An analytic expres...
Magnetic field effects on some astrophysical properties of Quark Stars
High Energy Astrophysical Phenomena (astro-ph.HE)
2010/12/24
This thesis aims to study how amending certain astrophysical observable of quark stars due to presence of magnetic field. To do this we need to obtain Equation of State (EOS) and consider the stabilit...
Quark-Nova Explosion inside a Collapsar：Application to Gamma Ray Bursts
Quark-Nova Explosion Collapsar Gamma Ray Bursts
2009/9/4
If a quark-nova occurs inside a collapsar, the interaction between the quark-nova ejecta (relativistic iron-rich chunks) and the collapsar envelope leads to features indicative of those observed in Ga...