Thermal evolution of rotating hybrid stars
arXiv:astro-ph/0609641 · doi:10.1111/j.1365-2966.2006.11416.x
Abstract
As a neutron star spins down, the nuclear matter continuously is converted into quark matter due to the core density increase and then latent heat is released. We have investigated the thermal evolution of neutron stars undergoing such deconfinement phase transition. We have taken into account the conversion in the frame of the general theory of relativity. The released energy has been estimated as a function of change rate of deconfinement baryon number. Numerical solutions to cooling equation are obtained to be very different from the without heating effect. The results show that neutron stars may be heated to higher temperature which is well-matched with pulsar's data despite onset of fast cooling in neutron stars with quark matter core. It is also found that heating effect has magnetic field strength dependence. This feature could be particularly interesting for high temperature of low-field millisecond pulsar at late stage. The high temperature could fit the observed temperature for PSR J0437-4715.
7 pages, 7 figures
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Cited by in corpus (13)
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- Signature of deconfinement with spin down compression in cooling hybrid stars
- Novel Non-equilibrium Phase Transition Caused by Non-linear Hadronic-quark Phase Structure
- The role of -mode damping in the thermal evolution of neutron stars
- Exploring pathways to forming twin stars
- Timing and Evolution of PSR B0950+08
- Observational constraints on quark matter in neutron stars
- The effect of deconfinement phase transition on rotochemical deviations in stars containing mixed phase matter
- Thermal Evolution of Strange Stars
- Signal of quark deconfinement in thermal evolution neutron stars with deconfinement heating
- Improbability of DUrca process constraints EOS
- Microscopic magnetic dipole radiation in neutron stars
- Cooling of Hybrid Stars with Spin Down Compression