1999/11/30 by Chengmin Zhang, C. M. Zhang · 2 citations
Earth and Planetary Sciences · Physics and Astronomy · #Accretion (finance) #Accretion disc #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #High-pressure geophysics and materials #Intermediate polar #Magnetosphere #Neutron star #Nuclear physics #Oscillation (cell signaling) #Physics #Plasma #Precession #Pulsars and Gravitational Waves Research #Stars #White dwarf #astro-ph #gr-qc
paper · pdf · doi:10.1142/s0218271801001177
published in International Journal of Modern Physics D 10(05), 625-632 (World Scientific) · 4 pages, 2 figures
arxiv created 2000/02/18 · openalex publication_date 2001/10/01 · arxiv updated 2009/12/01 · openalex created_date 2017/10/20 · openalex updated_date 2026/08/05
We ascribe the 15–60 Hz Quasi Periodic Oscillation (QPO) to the periastron precession frequency of the orbiting accreted matter at the boundary of magnetosphere-disk of X-ray neutron star (NS). Considering the relativistic motion mechanism for the kHz QPO, that the radii of the inner disk and magnetosphere-disk of NS are correlated with each other by a factor is assumed. The obtained conclusions include: all QPO frequencies increase with increasing the accretion rate. The theoretical relations between 15–60 Hz QPO (HBO) frequency and the twin kHz QPOs are similar to the measured empirical formula. Further, the better fitted NS mass by the proposed model is about 1.9 solar masses for the detected LMXBs.