2002/09/17 by Yasufumi Kojima, Y. Kojima, Koh-ichi Sakata +1 · 2 citations
Earth and Planetary Sciences · Engineering · Physics and Astronomy · #Geophysics and Sensor Technology #High-pressure geophysics and materials #Pulsars and Gravitational Waves Research #astro-ph
paper · pdf · doi:10.1143/ptp.108.801
published as Prog.Theor.Phys. 108 (2002) 801-808 · 8 pages, 4 figures, accepted for publication in Prog. Theor. Phys
arxiv created 2002/09/17 · openalex publication_date 2002/11/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The frequencies and damping times due to gravitational radiation are calculated for selfbound quark star models. The results are compared with those for neutron star models. They are markedly contrasted in less relativistic cases. The distinction derived here from a simple model of quark stars may be relevant to the future theoretical and observational studies, since the oscillation properties essentially depend on the mass and radius of an equilibrium star. Recently, Chandra X-ray Observations reveals a new aspect of a compact star. The isolated neutron star candidate RXJ1856.5-3754, which may be the closest to us, has the radiation radius 3.8-8.2 km. 1) The distance is estimated as 60-130pc