Bibcode
Soleri, P.; Fender, R.; Tudose, V.; Maitra, D.; Bell, M.; Linares, M.; Altamirano, D.; Wijnands, R.; Belloni, T.; Casella, P.; Miller-Jones, J. C. A.; Muxlow, T.; Klein-Wolt, M.; Garrett, M.; van der Klis, M.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 406, Issue 3, pp. 1471-1486.
Advertised on:
8
2010
Citations
60
Refereed citations
54
Description
In studies of accreting black holes in binary systems, empirical
relations have been proposed to quantify the coupling between accretion
processes and ejection mechanisms. These processes are probed,
respectively, by means of X-ray and radio/optical-infrared observations.
The relations predict, given certain accretion conditions, the expected
energy output in the form of a jet. We investigated this coupling by
studying the black hole candidate Swift J1753.5-0127, via
multiwavelength-coordinated observations over a period of ~4 yr. We
present the results of our campaign showing that, all along the
outburst, the source features a jet that is fainter than expected from
the empirical correlation between the radio and the X-ray luminosities
in a hard spectral state. Because the jet is so weak in this system the
near-infrared emission is, unusually for this state and luminosity,
dominated by thermal emission from the accretion disc. We briefly
discuss the importance and the implications of a precise determination
of both the slope and the normalization of the correlations, listing
some possible parameters that broad-band jet models should take into
account to explain the population of sources characterized by a dim jet.
We also investigate whether our data can give any hint on the nature of
the compact object in the system, since its mass has not been
dynamically measured.