Radial oscillations of magnetized proto strange stars in temperature- and density-dependent quark mass model

Pramana ◽  
2003 ◽  
Vol 61 (4) ◽  
pp. 659-668
Author(s):  
V. K. Gupta ◽  
Asha Gupta ◽  
S. Singh ◽  
J. D. Anand
Keyword(s):  
Quark Mass ◽  
Mass Model ◽  
Strange Stars ◽  
Density Dependent

STUDY OF PROTO STRANGE STARS IN TEMPERATURE AND DENSITY DEPENDENT QUARK MASS MODEL

2003 ◽  
Vol 12 (04) ◽  
pp. 583-595 ◽  
Author(s):  
V. K. GUPTA ◽  
ASHA GUPTA ◽  
S. SINGH ◽  
J. D. ANAND
Keyword(s):  
Quark Mass ◽  
Early Stage ◽  
Maximum Mass ◽  
Mass Model ◽  
Strange Stars ◽  
Density Dependent ◽  
Chemical Potentials ◽  
Recent Modification ◽  
Oscillation Frequencies ◽  
R Relation

We report on the study of the mass–radius (M–R) relation and the radial oscillations of proto strange stars. For the quark matter we have employed the very recent modification, the temperature and density dependent quark mass model of the well known density dependent quark mass model. We find that the maximum mass the star can support increases significantly with the temperature of the star in this model which implies that transition to a black hole at the early stage of formation of the star is inhibited. As for the effect of the neutrinos, we find, contrary to expectation, that the values of mass, radius and oscillation frequencies are almost independent of the neutrino chemical potentials.

scholarly journals A CONSISTENT QUASIPARTICLE PICTURE OF QUARK–GLUON PLASMA AND THE VELOCITY OF SOUND

2006 ◽  
Vol 21 (27) ◽  
pp. 2067-2077 ◽  
Author(s):  
SANJAY K. GHOSH ◽  
TAMAL K. MUKHERJEE ◽  
SIBAJI RAHA
Keyword(s):  
Quark Gluon Plasma ◽  
Quark Mass ◽  
Gluon Plasma ◽  
Velocity Of Sound ◽  
Lattice Data ◽  
Mass Model ◽  
Density Dependent ◽  
Quasiparticle Picture

A thermodynamically consistent density dependent quark mass model has been used to study the velocity of sound in a hot quark–gluon plasma. The results are compared with the recent lattice data.

Magnetostatics of a superconducting quark star

1993 ◽  
Vol 71 (9-10) ◽  
pp. 488-492 ◽  
Author(s):  
Somenath Chakrabarty
Keyword(s):  
Relativistic Theory ◽  
Quark Mass ◽  
Strange Quark ◽  
Quark Star ◽  
Fermion System ◽  
Superconducting Properties ◽  
Mass Model ◽  
Density Dependent ◽  
System A ◽  
Theory Of Superconductivity

The superconducting properties of a strange quark star are investigated using the relativistic theory of superconductivity for a fermion system. A dynamical density-dependent quark mass model is used for confinement. The type of superconductivity and the magnetostatic properties for the material of the star are also studied.

scholarly journals Bulk viscosity of strange quark matter in density dependent quark mass model

Pramana ◽  
2000 ◽  
Vol 54 (5) ◽  
pp. 737-749 ◽  
Author(s):  
J D Anand ◽  
N Chandrika Devi ◽  
V K Gupta ◽  
S Singh
Keyword(s):  
Bulk Viscosity ◽  
Quark Matter ◽  
Quark Mass ◽  
Strange Quark ◽  
Strange Quark Matter ◽  
Mass Model ◽  
Density Dependent

ON THE POSSIBILITY OF LOW MASS QUARK DROPLET STARS

1994 ◽  
Vol 09 (29) ◽  
pp. 2691-2697 ◽  
Author(s):  
SOMENATH CHAKRABARTY
Keyword(s):  
Quark Mass ◽  
Mass Model ◽  
Density Dependent ◽  
Low Mass

The possibility of stable quark-droplet stars is investigated using dynamical density dependent quark mass model of confinement. Some of its gross properties has also been studied.

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