Implication of existence of hybrid stars and theoretical expectation of submillisecond pulsars |
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| Institution: | 1. Institute of Astrophysics, Huazhong Normal University, Wuhan 430079, PR China;2. Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, PR China;1. NICPB, Rävala pst. 10, 10143 Tallinn, Estonia;2. Theoretical Particle Physics and Cosmology Group, Physics Department, King''s College London, London WC2R 2LS, United Kingdom;3. Theoretical Physics Department, CERN, Switzerland;4. Tartu Observatory, Tõravere 61602, Estonia;1. Institute of Physics, Sachivalya Marg, Bhubaneswar 751005, India;2. Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India;3. Center for Theoretical and Computational Physics, Department of Physics, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia;4. Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam;1. College of Physics, Sichuan University, Chengdu 610064, China;2. Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;3. School of Mathematics and Physics, Changzhou University, Changzhou, Jiangsu 213164, China;4. Department of Physics, Nanjing University, Nanjing 210093, China;5. Nanjing Institute of Proton Source Technology, Nanjing 210046, China |
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| Abstract: | We derive the bulk viscous damping timescale of hybrid stars, neutron stars with quark matter core. The r-mode instability windows of the stars show that the theoretical results are consistent with the rapid rotation pulsar data, which may give an indication for the existence of quark matter in the interior of neutron stars. Hybrid stars instead of neutron or strange stars may lead to submillisecond pulsars. |
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