2003/02/28 by R. X. Xu · 6 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Baryon #Gravitational wave #High-Energy Particle Collisions Research #Instability #Polarization (electrochemistry) #Pulsars and Gravitational Waves Research #Quark #Quark star #Strange matter #Thermal #astro-ph #hep-ph
paper · pdf · doi:10.1086/379209
published as Astrophys.J. 596 (2003) L59-L62 · Revised significantly, ApJL accepted, or at http://vega.bac.pku.edu.cn/~rxxu/publications/index_P.htm
arxiv created 2003/08/23 · openalex publication_date 2003/09/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
It is conjectured that cold quark matter with very high baryon density could be in a solid state, and strange stars with low temperatures should thus be solid stars. The speculation could be close to the truth if no peculiar polarization of thermal X-ray emission (as in, e.g., RX J1856) or no gravitational wave in postglitch phases are detected in future advanced facilities or if spin frequencies beyond the critical ones limited by r -mode instability are discovered. The shear modulus of solid quark matter could be ~10 32 ergs cm -3 if the kilohertz quasi-periodic oscillations observed are relevant to the eigenvalues of the center star oscillations.