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Spectral evidence for a powerful compact jet from XTE J1118+480
R. P. Fender, R. M. Hjellming, R. P. J. Tilanus +4
We present observations of the X-ray transient XTE J1118+480 during its Low/Hard X-ray state outburst in 2000, at radio and sub-millimetre wavelengths with the VLA, Ryle Telescope,…
Excess sub-millimetre emission from GRS 1915+105
R. N. Ogley, S. J. Bell Burnell, R. P. Fender +2
We present the first detections of the black hole X-ray binary GRS 1915+105 at sub-millimetre wavelengths. We clearly detect the source at 350 GHz on two epochs, with significant v…
Orbital, precessional and flaring variability of Cygnus X-1
C. Brocksopp, R. P. Fender, V. Larianiov +5
We present the results of a 2.5-year multiwavelength monitoring programme of Cygnus X-1, making use of hard and soft X-ray data, optical spectroscopy, UBVJHK photometry and radio d…
MERLIN observations of relativistic ejections from GRS 1915+105
R. P. Fender, S. T. Garrington, D. J. McKay +5
We present high resolution MERLIN radio images of multiple relativistic ejections from GRS 1915+105 in 1997 October / November. The observations were made at a time of complex radi…
Orbital modulation and longer-term variability in the radio emission from Cygnus X-1
G. G. Pooley, R. P. Fender, C. Brocksopp
20 months of observations of the radio emission at 15 GHz from Cygnus X-1, starting in 1996 October, show variations at the binary period of 5.6 days, but with a phase offset from…
MERLIN observations of GRS 1915+105 : a progress report
R. P. Fender, S. T. Garrington, D. J. McKay +5
We present a progress report on MERLIN radio imaging of a radio outburst from GRS 1915+105. The major ejection occurred at the end of an approximately 20-day `plateau' state, chara…
A radio survey of supersoft, persistent and transient X-ray sources in the Magellanic Clouds
R. P. Fender, K. Southwell, A. K. Tzioumis
We present a radio survey of X-ray sources in the Large and Small Magellanic clouds with the Australia Telescope Compact Array at 6.3 and 3.5 cm. Specifically, we have observed the…
The variable radio emission from GRS 1915+105
G. G. Pooley, R. P. Fender
We present data on the monitoring of the Galactic X-ray transient GRS 1915+105 at 15 GHz with the Ryle Telescope. We have found quasi-periodic oscillations with periods in the rang…
Rapid infrared flares in GRS 1915+105 : evidence for infrared synchrotron emission
R. P. Fender, G. G. Pooley, C. Brocksopp +1
We report imaging photometry of the radio-jet black hole candidate source GRS 1915+105 in the infrared K band. The observations reveal rapid infrared flare events on timescales of…
New radio observations of Circinus X-1
R. P. Fender
New radio observations of the radio-jet X-ray binary Circinus X-1 over nearly an entire 16.6-day orbit are presented. The source continues to undergo radio flaring in the phase int…
A deep search for radio emission from three X-ray pulsars : are radio emission and X-ray pulsations anticorrelated ?
R. P. Fender, P. Roche, G. G. Pooley +4
We present results from a deep search for radio emission from the X-ray pulsar systems GX 1+4, GS 0834-430 and 4U 0115+63 which have variously been suggested to possess radio jets…