The 2:3:6 quasi-periodic oscillation structure in GRS 1915+105 and cubic subharmonics in the context of relativistic discoseismology
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Authors
Ortega Rodríguez, Manuel
Solís Sánchez, Hugo
López Barquero, Vanessa
Matamoros Alvarado, Bryan
Venegas Li, Ariadna
Journal Title
Journal ISSN
Volume Title
Publisher
Monthly Notices of the Royal Astronomical Society 440:3011-3015
Abstract
We propose a simple toy model to explain the 2:3:6 quasi-periodic oscillation (QPO) structure in GRS 1915+105 and, more generally, the 2:3 QPO structure in XTE J1550−564, GRO J1655−40 and H1743−322. The model exploits the onset of subharmonics in the context of discoseismology. We suggest that the observed frequencies may be the consequence of a resonance between a fundamental g mode and an unobservable p wave. The results include the prediction that, as better data become available, a QPO with a frequency of twice the higher twin frequency and a large quality factor will be observed in twin peak sources, as it might already have been observed in the especially active GRS 1915+105.
Description
Artículo científico -- Universidad de Costa Rica, Cenrtro de Investigaciones Geofísicas. 2013
Keywords
accretion, accretion discs, black hole physics, X-rays: binaries
Citation
http://mnras.oxfordjournals.org/content/440/4/3011.full.pdf+html?sid=8bd31273-05a0-4b9d-8896-07ee24128a41