Zooming in on a sleeping giant: Milliarcsecond High Sensitivity Array imaging of the black hole binary V404 Cyg in quiescence
Monthly Notices of the Royal Astronomical Society 388:4 (2008) 1751-1758
Abstract:
Observations of the black hole X-ray binary V404 Cyg with the very long baseline interferometer the High Sensitivity Array (HSA) have detected the source at a frequency of 8.4 GHz, providing a source position accurate to 0.3 mas relative to the calibrator source. The observations put an upper limit of 1.3 mas on the source size (5.2 au at 4 kpc) and a lower limit of 7 × 106 K on its brightness temperature during the normal quiescent state, implying that the radio emission must be non-thermal, most probably synchrotron radiation, possibly from a jet. The radio light curves show a short flare, with a rise time of ∼30 min, confirming that the source remains active in the quiescent state. © 2008 The Authors.The First Polarimetric Signatures of Infrared Jets in X-Ray Binaries
\apj 672 (2008) 510-515-510-515
BLAZING TRAILS: MICROQUASARS AS HEAD-TAIL SOURCES AND THE SEEDING OF MAGNETIZED PLASMA INTO THE ISM
ASTROPHYSICAL JOURNAL 686:2 (2008) 1145-1154
Broadband X-ray spectra of GX 339-4 and the geometry of accreting black holes in the hard state
ASTROPHYSICAL JOURNAL 680:1 (2008) 593-601