Period doubling and non-linear resonance in the black hole candidate IGR J17091-3624 ?

Abstract

The two high frequency quasi periodic oscillations (HFQPOs) recently reported in the black hole candidate IGR J17091-3624 by Altamirano and Belloni (2012) are in a 5:2 frequency ratio (164 Hz to 66 Hz). This ratio is strongly suggestive of period doubling and nonlinear resonance analogous to phenomena known in RV Tauri-type pulsating stars (and recently discovered also in oscillations of RR Lyrae-type and of BL Herculis-type variables). An interpretation of the frequency ratio in terms of nonlinear interactions and a comparison with the HFQPOs reported in GRS 1915+105 may imply a mass of about 6 solar masses for the black hole in IGR J17091- 3624.

3 pages, accepted by Astronomy & Astrophysics Letters

References in corpus (3)

• X-ray Properties of Black-Hole Binaries
• Kepler photometry of the prototypical Blazhko star RR Lyr: An old friend seen in a new light
• Multicolor photometry of the Type II Cepheid prototype W Virginis

Cited by in corpus (4)

• Determination of mass of IGR J17091-3624 from "Spectro-Temporal" variations during onset-phase of the 2011 outburst
• The universal "heartbeat" oscillations in black hole systems accross the mass-scale
• Fate of an Accretion Disc around a Black Hole when both the Viscosity and Dark Energy is Effecting
• Swift/XRT, Chandra and XMM-Newton observations of IGR J17091-3624 as it returns into quiescence