scholarly journals Instability of quark matter core in a compact newborn neutron star with moderately strong magnetic field

Pramana ◽  
2003 ◽  
Vol 60 (5) ◽  
pp. 901-907 ◽  
Author(s):  
Sutapa Ghosh ◽  
Somenath Chakrabarty
Keyword(s):  
Magnetic Field ◽  
Neutron Star ◽  
Strong Magnetic Field ◽  
Quark Matter

scholarly journals CHEMICAL EVOLUTION OF STRONGLY MAGNETIZED QUARK CORE IN A NEWBORN NEUTRON STAR

2001 ◽  
Vol 10 (01) ◽  
pp. 89-106 ◽  
Author(s):  
TANUSRI GHOSH ◽  
SOMENATH CHAKRABARTY
Keyword(s):  
Magnetic Field ◽  
Neutron Star ◽  
Strong Magnetic Field ◽  
Chemical Evolution ◽  
Quark Matter ◽  
Strange Quark ◽  
Effective Rate ◽  
Field Environment ◽  
Dense Nuclear Matter ◽  
Quark Production

The chemical evolution of nascent quark matter core in a newborn compact neutron star is studied in presence of a strong magnetic field. The effective rate of strange quark production in degenerate quark matter core in presence of strong magnetic fields is obtained. The investigations show that in presence of strong magnetic field the quark matter core becomes energetically unstable and hence a first/higher order deconfinement transition to quark matter at the centre of a compact neutron star under such circumstances is absolutely impossible. The critical strength of magnetic field at the central core to make the system energetically unstable with respect to dense nuclear matter is found to be ~4.4 × 1013 G. This is the typical strength at which the Landau levels for electrons are populated. The other kind of phase transformations at such high density and ultra strong magnetic field environment are discussed.

STRANGE STAR IN THE PRESENCE OF A STRONG MAGNETIC FIELD

2001 ◽  
Vol 16 (13) ◽  
pp. 2435-2445 ◽  
Author(s):  
P. K. SAHU ◽  
S. K. PATRA
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Quark Matter ◽  
Strange Star ◽  
Structure Parameters ◽  
Strange Stars ◽  
Strange Matter ◽  
Free Quark ◽  
Star Structure

We study the effect of a strong magnetic field on interacting quark matter and apply the same to strange star. We find that interacting strange matter is less stable than noninteracting strange matter in the presence of a strong magnetic field. We then calculate strange star structure parameters such as mass and radius and find that the strange star is less compact for interacting quark matter than for free quark matter in presence of strong magnetic field. The maximum masses of strange stars are found to be within the recent observational limit.

scholarly journals Quark matter in a strong magnetic field

1996 ◽  
Vol 54 (2) ◽  
pp. 1306-1316 ◽  
Author(s):  
Somenath Chakrabarty
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Quark Matter
Sign in / Sign up

Export Citation Format

Share Document