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Hybrid stars with color superconducting cores in an extended FCM model
(MDPI, 2021-10)
We investigate the influence of repulsive vector interactions and color superconductivity on the structure of neutron stars using an extended version of the field correlator method (FCM) for the description of quark matter. ...
Asteroseismology of hybrid δ Scuti-γ Doradus pulsating stars
(EDP Sciences, 2017-01)
Context. Hybrid δ Scuti-γ Doradus pulsating stars show acoustic (p) oscillation modes typical of δ Scuti variable stars, and gravity (g) pulsation modes characteristic of γ Doradus variable stars simultaneously excited. ...
Properties of magnetized Quark-Hybrid Stars
(World Scientific, 2011-12)
The structure of a magnetized quark-hybrid stars (QHS) is modeled using a standard relativistic mean-field equation of state (EoS) for the description of hadronic matter. For quark matter we consider a bag model EoS which ...
Oscillation modes of hybrid stars within the relativistic Cowling approximation
(IOP Publishing, 2018-12)
The first direct detection of gravitational waves has opened a new window to study the Universe and would probably start a new era: the gravitational wave Astronomy. Gravitational waves emitted by compact objects like ...
Spectral analysis of the hybrid PG 1159-type central stars of the planetary nebulae Abell 43 and NGC 7094
(Wiley Blackwell Publishing, Inc, 2019-07-25)
Stellar post asymptotic giant branch (post-AGB) evolution can be completely altered by a final thermal pulse (FTP) which may occur when the star is still leaving the AGB (AFTP), at the departure from the AGB at still ...
Constant-sound-speed parametrization for Nambu-Jona-Lasinio models of quark matter in hybrid stars
(American Physical Society, 2016-04)
The discovery of pulsars as heavy as 2 solar masses has led astrophysicists to rethink the core compositions of neutron stars, ruling out many models for the nuclear equations of state (EoS). We explore the hybrid stars ...
Magnetized hybrid stars: Effects of slow and rapid phase transitions at the quark-hadron interface
(Wiley Blackwell Publishing, Inc, 2019-11)
We study the influence of strong magnetic fields in hybrid stars, composed by hadrons and a pure quark matter core, and analyse their structure and stability as well as some possible evolution channels due to the magnetic ...
Thermal evolution of hybrid stars within the framework of a nonlocal Nambu-Jona-Lasinio model
(American Physical Society, 2015-09)
We study the thermal evolution of neutron stars containing deconfined quark matter in their core. Such objects are generally referred to as quark-hybrid stars. The confined hadronic matter in their core is described in the ...