Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-11-15
Int. J. Mod. Phys. D., 10, No.5 (2001) 625-632
Astronomy and Astrophysics
Astrophysics
4 pages, 2 figures
Scientific paper
10.1142/S0218271801001177
We ascribe the twin kilohertz Quasi Periodic Oscillations (kHz QPOs) of X-ray spectra of Low Mass X-Ray Binaries (LMXBs) to the pseudo-Newtonian Keplerian frequency and the apogee and perigee precession frequency of the same matter in the inner disk, and ascribe 15 - 60 Hz QPO (HBO) to the apogee (or perigee) precession and its second harmonic frequency to both apogee and perigee precession in the outer disk boundary of the neutron star (NS) magnetosphere. The radii of the inner and outer disks are correlated each other by a factor of two is assumed. The obtained conclusions include: all QPO frequencies increase and frequency difference of twin kHz QPOs decreases with increasing the accretion rate. The obtained theoretical relations between HBO frequency and twin kHz QPOs are simlilar to the measured empirical formula. Further, the theoretical formula to calculate the NS mass by the twin kHz QPOs is proposed, and the resultant values are in the range of 1.4 to 1.8 solar masses. QPOs from LMXBs likely provide an accurate laboratory for a strong gravitational field, by which a new method to determine the NS masses of LMXBs is suggested.
No associations
LandOfFree
Quasi Periodic Oscillations in X-ray Neutron Star and Probes of Perihelion Precession of General Relativity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quasi Periodic Oscillations in X-ray Neutron Star and Probes of Perihelion Precession of General Relativity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quasi Periodic Oscillations in X-ray Neutron Star and Probes of Perihelion Precession of General Relativity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-304050