SIMBAD references

2015MNRAS.447.2059M - Mon. Not. R. Astron. Soc., 447, 2059-2072 (2015/February-3)

Geometrical constraints on the origin of timing signals from black holes.

MOTTA S.E., CASELLA P., HENZE M., MUNOZ-DARIAS T., SANNA A., FENDER R. and BELLONI T.

Abstract (from CDS):

We present a systematic study of the orbital inclination effects on black hole transients fast time-variability properties. We have considered all the black hole binaries that have been densely monitored by the Rossi X-ray Timing Explorer satellite. We find that the amplitude of low-frequency quasi-periodic oscillations (QPOs) depends on the orbital inclination. type-C QPOs are stronger for nearly edge-on systems (high inclination), while type-B QPOs are stronger when the accretion disc is closer to face-on (low inclination). Our results also suggest that the noise associated with type-C QPOs is consistent with being stronger for low-inclination sources, while the noise associated with type-B QPOs seems inclination independent. These results are consistent with a geometric origin of the type-C QPOs - for instance arising from relativistic precession of the inner flow within a truncated disc - while the noise would correspond to intrinsic brightness variability from mass accretion rate fluctuations in the accretion flow. The opposite behaviour of type-B QPOs - stronger in low-inclinations sources - supports the hypothesis that type-B QPOs are related to the jet, the power of which is the most obvious measurable parameter expected to be stronger in nearly face-on sources.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): binaries: close - stars: black holes - stars: jets - stars: low-mass - stars: oscillations - X-rays: binaries

VizieR on-line data: <Available at CDS (J/MNRAS/447/2059): table1.dat table2.dat>

Simbad objects: 22

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2021.03.03-23:45:18

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