Possibility of conversion of neutron star to quark star in presence of high magnetic field

Abstract

Recent results and data suggests that high magnetic field in neutron stars (NS) strongly affects the characteristic (radius, mass) of the star. They are even separated as a class known as magnetars, for whom the surface magnetic field are greater than $10^{14}$ G. In this work we discuss the effect of such high magnetic field on the phase transition of NS to quark star (QS). We study the effect of magnetic field on the transition from NS to QS including the magnetic field effect in equation of state (EoS). The inclusion of the magnetic field increases the range of baryon number density, for which the flow velocities of the matter in the respective phase are finite. The magnetic field helps in initiation of the conversion process. The velocity of the conversion front however decreases due to the presence of magnetic field, as the presence of magnetic field reduces the effective pressure (P). The magnetic field of the star gets decreased by the conversion process, and the resultant QS has lower magnetic field than that of the initial NS.

8 pages, 9 figures; accepted to be published in MNRAS

References in corpus (7)

• Torsional Oscillations of Relativistic Stars with Dipole Magnetic Fields
• Magnetized strange quark matter and magnetized strange quark stars
• Hypernuclear matter in strong magnetic field
• The conversion of Neutron star to Strange star : A two step process
• Strange stars with different quark mass scalings
• General Relativistic effects on the conversion of nuclear to two-flavour quark matter in compact stars
• Possibility of conversion of neutron star to quark star in presence of high magnetic field

Cited by in corpus (13)

• Deformation of a magnetized neutron star
• On Magnetized Neutron Stars
• Strange quark matter in strong magnetic fields within a confining model
• Role of vector channel in different classes of (non) magnetized neutron stars
• Erratum: Anisotropy in the EoS of Magnetized Quark Matter [Phys Rev C91, 065205 (2015)]
• Quark matter under strong magnetic fields
• Phase transitions in neutron star and magnetars and their connection with high energetic bursts in astrophysics
• Possibility of conversion of neutron star to quark star in presence of high magnetic field
• Analyzing the dense matter equation of states in the light of the compact object HESS J1731-347
• Neutron stars including the effects of chaotic magnetic fields and the anomalous magnetic moments
• Effect of magnetic field on the burning of a neutron star
• Imprints of Non-Symmetric Dark Matter Halos on Magnetars: A Two-Fluid Perspective
• Antikaon condensation in magnetized neutron star matter within the framework of the $\sigma$-cut scheme