SIMBAD references

2012A&A...545A..40V - Astronomy and Astrophysics, volume 545A, 40-40 (2012/9-1)

A possible interpretation for the apparent differences in LFQPO types in microquasars.

VARNIERE P., TAGGER M. and RODRIGUEZ J.

Abstract (from CDS):

In most microquasars, low-frequency quasi-periodic oscillations (LFQPO) have been classified into three types (A, B and C depending on the peak distribution in the power density spectra and the shape of the noise) but no explanation has been proposed yet. The accretion-ejection instability (AEI) was presented in 1999 as a possible explanation for the fast varying LFQPO that occur most often. Here we look at a possible generalization to explain the characteristics of the other two LFQPO types. It was recently shown that when the disk approaches its last stable orbit, the AEI is markedly affected by relativistic effects. We focus on the characteristics of the LFQPO that would result from the relativistic AEI and compare them with the different LFQPO types. The effects of relativity on the AEI seem to be able to explain most of the characteristics of the three types of LFQPO within one formalism.

Abstract Copyright:

Journal keyword(s): X-rays: binaries - instabilities - accretion, accretion disks

Simbad objects: 5

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2012A&A...545A..40V and select 'bookmark this link' or equivalent in the popup menu


2021.06.12-19:11:36

© Université de Strasbourg/CNRS

    • Contact