Rotating Twin Stars and Signature of Quark-Hadron Phase Transition
Abstract
The quark hadron phase transition in a rotating compact star has been studied. The NLZ-model has been used for the hadronic sector and the MIT Bag model has been used for the quark sector. It has been found that rotating twin star (third family) solutions are obtained upto ≈ 4000 s-1. Stars which are rotating faster than this limit do not show any twin star solution. A backbending in moment of inertia is also observed in the supermassive rest mass sequences. The braking index is found to diverge for a star having pure quark core.
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