Results 31 to 40 of about 41,644 (263)

On the conversion of neutron stars into quark stars [PDF]

open access: yesEPJ Web of Conferences, 2014
The possible existence of two families of compact stars, neutron stars and quark stars, naturally leads to a scenario in which a conversion process between the two stellar objects occurs with a consequent release of energy of the order of $10^{53}$ erg.
openaire   +4 more sources

Three-layered compact star in modified Buchdahl-I spatial metric with distinct equations of state

open access: yesPhysics Letters B, 2023
We present a singularity free and smoothly connected complete solution for a three-layered compact star with deconfined quark matter core surrounded by coherent quantum fluid of a Bose-Einstein condensate, all enclosed under a thin envelope of a ...
Shweta Saklany   +2 more
doaj   +1 more source

Neutron stars and massive quark matter [PDF]

open access: yesProgress in Particle and Nuclear Physics, 1996
Using the Color-Dielectric model to describe quark confinement, including strange quarks and accounting for beta--equilibrium, we get masses for a static neutron star in the range $1.3\leq M/M_{\odot}\leq 1.54 $ for a radius $R\approx 9$ km. Rapid cooling through the direct URCA mechanism is obtained.
DRAGO, Alessandro   +2 more
openaire   +5 more sources

Quark matter in compact stars? [PDF]

open access: yesNature, 2007
Ozel, in a recent reanalysis of EXO 0748-676 observational data (astro-ph/0605106), concluded that quark matter probably does not exist in the center of compact stars. We show that the data is actually consistent with the presence of quark matter in compact stars.
Thomas Klähn   +6 more
openaire   +4 more sources

Constant entropy hybrid stars: a first approximation of cooling evolution [PDF]

open access: yes, 2017
We aim to study the possibility of a hadron-quark phase transition in the interior of neutron stars, taking into account different schematic evolutionary stages at finite temperature. We also discuss the strange quark matter stability in the quark matter
Mariani, M., Orsaria, M., Vucetich, H.
core   +3 more sources

Observability of neutron stars with quarks [PDF]

open access: yesNuclear Physics A, 2003
4 pages, 1 figure, uses espcrc1.sty (included)
Dany Page   +3 more
openaire   +4 more sources

Gravitational waves from binary compact star mergers in the context of strange matter

open access: yesEPJ Web of Conferences, 2018
In this article we will focus on the appearance of the hadron-quark phase transition and the formation of strange matter in the interior region of the hypermassive neutron star and its conjunction with the spectral properties of the emitted gravitational
Hanauske Matthias   +4 more
doaj   +1 more source

Chirally Improved Quark Pauli Blocking in Nuclear Matter and Applications to Quark Deconfinement in Neutron Stars

open access: yesParticles, 2020
The relativistic mean field (RMF) model of the nuclear matter equation of state was modified by including the effect of Pauli-blocking owing to quark exchange between the baryons.
David Blaschke   +2 more
doaj   +1 more source

Recent results on cold-QCD from RHIC [PDF]

open access: yesEPJ Web of Conferences, 2020
Polarized proton-proton collisions at the Relativistic Heavy Ion Collider (RHIC) provide unique opportunities to study the spin structure of the nucleon.
Xu Qinghua
doaj   +1 more source

Effects of quark matter and color superconductivity in compact stars [PDF]

open access: yes, 2003
The equation of state for quark matter is derived for a nonlocal, chiral quark model within the mean field approximation. We investigate the effects of a variation of the form factors of the interaction on the phase diagram of quark matter under the ...
Aguilera, D. N.   +4 more
core   +1 more source

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