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| Effect of magnetic field on phase transition from neutron to quark star |
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| Content: |
Phase transition, from normal nuclear matter to quark matter, can occur inside a neutron star whose density is 3-10 times normal nuclear matter saturation density. The transition is modeled to occur via a conversion front, converting the neutron star to quark star. The relativistic rankine-hugoniot jump condition provides the initial condition of the front propagation, while the hydrodynamical equations governs the front propagation through the star. Neutron star are not only highly gravitating body but they are also observed to have huge magnetic field on the surface. The magnetic field affects both the kinematics and the dynamics of the conversion front. The relativistic rankine-hugoniot condition gets modified due to high magnetic field, resulting in a new initial condition for the front propagation. The hydrodynamical condition which governs the dynamics of the front also gets modified due to strong magnetic field presence. We have included the effect of strong magnetic field on the hydrodynamical equations through the Lorentz force generated due to the magnetic field in the energy-momentum tensor. We have considered both dipole and radial field at the center of the star and studied its effect. The velocity of the conversion front gets modified by 10-15 % by the strong magnetic field presence. We further find that the nature of the transition front also depends on the configuration of the magnetic field which we assume. |
| Id: |
28 |
| Place: |
Room: Main Auditorium |
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| Duration: |
00' |
| Primary Authors: |
Dr. MALLICK, Ritam (Indian Institute of science) |
| Presenters: |
Dr. MALLICK, Ritam |
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Last modified: 21 April 2011 05:02