Predicting spin of compact objects from their QPOs: A global QPO model

Details Predicting spin of compact objects from their QPOs: A global QPO model Predicting spin of compact objects from their QPOs: A global QPO model

2008-09-19

arxiv.org/abs/0809.3336v1

Astronomy and Astrophysics

Astrophysics

7 pages; to appear in the proceedings of the Second Kolkata conference on Observational Evidence for Black Holes in the Univer

Scientific paper

10.1063/1.3009505

We establish a unified model to explain Quasi-Periodic-Oscillation (QPO) observed from black hole and neutron star systems globally. This is based on the accreting systems thought to be damped harmonic oscillators with higher order nonlinearity. The model explains multiple properties parallelly independent of the nature of the compact object. It describes QPOs successfully for several compact sources. Based on it, we predict the spin frequency of the neutron star Sco X-1 and the specific angular momentum of black holes GRO J1655-40, GRS 1915+105.

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