Application of the relativistic precession model to the accreting millisecond X-ray pulsar IGR J17511-3057

Abstract

The observation of a pair of simultaneous twin kHz QPOs in the power density spectrum of a neutron star or a black hole allows its mass-angular-momentum relation to be constrained. Situations in which the observed simultaneous pairs are more than one allow the different models of the kHz QPOs to be falsified. Discrepancy between the estimates coming from the different pairs would call the used model into question. In the current paper the relativistic precession model is applied to the twin kHz QPOs that appear in the light curves of three groups of observations of the accreting millisecond X-ray pulsar IGR J17511-3057. It was found that the predictions of one of the groups are practically in conflict with the other two. Another interesting result is that the region in which the kHz QPOs have been born is rather broad and extends quite far from the ISCO.

accepted for publication in Astronomische Nachrichten

References in corpus (4)

• Black hole spin measurements through the relativistic precession model: XTE J1550-564
• On mass-constraints implied by the relativistic precession model of twin-peak quasi-periodic oscillations in Circinus X-1
• Super-spinning compact objects and models of high-frequency quasi-periodic oscillations observed in Galactic microquasars
• Test of the string loop oscillation model using kHz quasiperiodic oscillations in a neutron star binary

Cited by in corpus (1)

• Mass-spin relation of black holes obtained by twin high-frequency quasi-periodic oscillations