468 citations · 2k across the 22 of their papers we have counts for
23 papers
Milliarcsecond-scale jet reorientations in GRS 1915+105 pointing towards a warped accretion disc
L. I. de Regt, P. Atri, S. E. Motta +3
The black hole X-ray binary GRS 1915+105 was persistently X-ray bright for over 26 years before entering a prolonged low X-ray flux state in 2018, while remaining bright at radio w…
Strong low-frequency radio flaring from Cygnus X-3 observed with LOFAR
J. W. Broderick, T. D. Russell, R. P. Fender +12
We present Low-Frequency Array (LOFAR) 143.5-MHz radio observations of flaring activity during 2019 May from the X-ray binary Cygnus X-3. Similar to radio observations of previous…
Rapid Radio Flaring during an Anomalous Outburst of SS Cyg
K. P. Mooley, J. C. A. Miller-Jones, R. P. Fender +12
The connection between accretion and jet production in accreting white dwarf binary systems, especially dwarf novae, is not well understood. Radio wavelengths provide key insights…
Shell-Shocked: The Interstellar Medium Near Cygnus X-1
P. H. Sell, S. Heinz, E. Richards +6
We conduct a detailed case-study of the interstellar shell near the high-mass X-ray binary, Cygnus X-1. We present new WIYN optical spectroscopic and Chandra X-ray observations of…
Broadband monitoring tracing the evolution of the jet and disk in the black hole candidate X-ray binary MAXI J1659-152
A. J. van der Horst, P. A. Curran, J. C. A. Miller-Jones +31
MAXI J1659-152 was discovered on 2010 September 25 as a new X-ray transient, initially identified as a gamma-ray burst, but was later shown to be a new X-ray binary with a black ho…
An evolving compact jet in the black hole X-ray binary MAXI J1836-194
D. M. Russell, T. D. Russell, J. C. A. Miller-Jones +27
We report striking changes in the broadband spectrum of the compact jet of the black hole transient MAXI J1836-194 over state transitions during its discovery outburst in 2011. A f…
Observational constraints on the powering mechanism of transient relativistic jets
D. M. Russell, E. Gallo, R. P. Fender
We revisit the paradigm of the dependency of jet power on black hole spin in accreting black hole systems. In a previous paper we showed that the luminosity of compact jets continu…
Jet spectral breaks in black hole X-ray binaries
D. M. Russell, S. Markoff, P. Casella +10
In X-ray binaries, compact jets are known to commonly radiate at radio to infrared frequencies, whereas at optical to gamma-ray energies, the contribution of the jet is debated. Th…
A weak compact jet in a soft state of Cygnus X-1
A. Rushton, J. C. A. Miller-Jones, R. Campana +8
We present evidence for the presence of a weak compact jet during a soft X-ray state of Cygnus X-1. Very-high-resolution radio observations were taken with the VLBA, EVN and MERLIN…
Radiatively efficient accreting black holes in the hard state: the case study of H1743-322
M. Coriat, S. Corbel, L. Prat +7
In recent years, much effort has been devoted to unraveling the connection between the accretion flow and the jets in accreting compact objects. In the present work, we report new…
Evolution of the radio - X-ray coupling throughout an entire outburst of Aquila X-1
J. C. A. Miller-Jones, G. R. Sivakoff, D. Altamirano +18
The 2009 November outburst of the neutron star X-ray binary Aquila X-1 was observed with unprecedented radio coverage and simultaneous pointed X-ray observations, tracing the radio…
The complete spectrum of the neutron star X-ray binary 4U0614+091
S. Migliari, J. A. Tomsick, J. C. A. Miller-Jones +6
We observed the neutron star (NS) ultra-compact X-ray binary 4U0614+091 quasi-simultaneously in the radio band (VLA), mid-IR/IR (Spitzer/MIPS and IRAC), near-IR/optical (SMARTS), o…
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…