467 citations · 4.2k across the 127 of their papers we have counts for
53 papers · 1 filter
Unifying disc-jet behaviour in X-ray binaries: an optical/IR approach
David M. Russell, Dipankar Maitra, Rob P. Fender +1
Synchrotron emission from jets produced by X-ray binaries can be detected at optical and infrared (IR) frequencies. I show that optical/IR colour-magnitude diagrams of the outburst…
Hard X-ray observations of PSR J1833-1034 and its associated pulsar wind nebula
A. De Rosa, P. Ubertini, R. Campana +3
PSR J1833-1034 and its associated Pulsar Wind Nebula (PWN) has been investigated in depth through X-ray observations ranging from 0.1 to 200 keV. The low energy X-ray data from Cha…
Spectral evidence for jets from Accreting Millisecond X-ray Pulsars
David M. Russell, Rob P. Fender, Peter Jonker +1
Transient radio emission from X-ray binaries is associated with synchrotron emission from collimated jets that escape the system, and accreting millisecond X-ray pulsars (AMXPs) ar…
On the evidence for narrow, relativistically shifted X-ray lines
S. Vaughan, P. Uttley
In recent years there have been many reported detections of highly redshifted or blueshifted narrow spectral lines (both emission or absorption) in the X-ray spectra of active gala…
Zooming in on a sleeping giant: milliarcsecond HSA imaging of the black hole binary V404 Cyg in quiescence
J. C. A. Miller-Jones, E. Gallo, M. P. Rupen +5
Observations of the black hole X-ray binary V404 Cyg with the very long baseline interferometer HSA (the High Sensitivity Array) have detected the source at a frequency of 8.4 GHz,…
The multiwavelength variability of 3C 273
S. Soldi, M. Türler, S. Paltani +11
We present an update of 3C 273's database hosted by the ISDC, completed with data from radio to gamma-ray observations over the last 10 years. We use this large data set to study t…
The Contribution of Radio Selected Star Forming Galaxies to the IR Energy Density Budget
N. Seymour, T. Dwelly, D. Moss +6
We have used several different methods (radio morphology, radio spectral index, mid-IR to radio and near-IR to radio flux density ratios) to discriminate between AGN and SFGs in fa…
Coupled radio and X-ray emission and evidence for discrete ejecta in the jets of SS 433
J. C. A. Miller-Jones, S. Migliari, R. P. Fender +3
We present five epochs of simultaneous radio (VLA) and X-ray (Chandra) observations of SS 433, to study the relation between the radio and X-ray emission in the arcsecond-scale jet…
Simultaneous X-ray/radio observations of Cir X-1
Paolo Soleri, Valeriu Tudose, Rob Fender +1
We analysed simultaneous X-ray/radio observations of Circinus X-1 collected respectively with RXTE and ATCA in 2000 October and 2002 December and identified radio flares close to p…
The Star Formation History of the Universe as Revealed by Deep Radio Observations
N. Seymour, T. Dwelly, D. Moss +6
Discerning the exact nature of the sub-mJy radio population has been historically difficult due to the low luminosity of these sources at most wavelengths. Using deep ground based…
Searching for the signatures of jet-ISM interactions in X-ray binaries
James Miller-Jones, Christian Kaiser, Tom Maccarone +8
Jets from X-ray binaries are continuously injecting matter and energy into the surrounding interstellar medium (ISM). However, there exist to date relatively few cases where jet-IS…
The Lifetime of FRIIs in Groups and Clusters: Implications for Radio-Mode Feedback
Jonathan C. Bird, Paul Martini, Christian R. Kaiser
We determine the maximum lifetime t_max of 52 FRII radio sources found in 26 central group galaxies from cross correlation of the Berlind SDSS group catalog with the VLA FIRST surv…
Polarisation studies of the prompt gamma-ray emission from GRB 041219a using the Spectrometer aboard INTEGRAL
S. McGlynn, D. J. Clark, A. J. Dean +6
The spectrometer aboard INTEGRAL, SPI, has the capability to detect the signature of polarised emission from a bright gamma-ray source. GRB 041219a is the most intense burst locali…
Evidence for deceleration in the radio jets of GRS1915+105?
J. C. A. Miller-Jones, M. P. Rupen, R. P. Fender +3
There is currently a clear discrepancy in the proper motions measured on different angular scales in the approaching radio jets of the black hole X-ray binary GRS1915+105. Lower ve…
New outbursts of the black hole candidate H1743-322/IGR J17464-3213 observed by INTEGRAL
F. Capitanio, A. Bazzano, P. Ubertini +1
On March 2003, INTEGRAL/IBIS detected an outburst from a new source, IGR J17464-3213, that turned out to be a HEAO-1 transient, namely H1743-322. Its fux decayed below the RXTE PCA…
A very brief description of LOFAR - the Low Frequency Array
H. Falcke, M. P. van Haarlem, A. G. de Bruyn +28
LOFAR (Low Frequency Array) is an innovative radio telescope optimized for the frequency range 30-240 MHz. The telescope is realized as a phased aperture array without any moving p…
3D Collapse of Rotating Stellar Iron Cores in General Relativity including Deleptonization and a Nuclear Equation of State
C. D. Ott, H. Dimmelmeier, A. Marek +4
We present results from the first 2D and 3D simulations of the collapse of rotating stellar iron cores in general relativity employing a finite-temperature equation of state and an…
Discovery of an X-ray Jet and Extended Jet Structure in the Quasar PKS 1055+201
D. A. Schwartz, H. L. Marshall, J. E. J. Lovell +10
This letter reports rich X-ray jet structures found in the Chandra observation of PKS 1055+201. In addition to an X-ray jet coincident with the radio jet we detect a region of exte…
Temperature-dependent pulsations of superfluid neutron stars
M. E. Gusakov, N. Andersson
We examine radial oscillations of superfluid neutron stars at finite internal temperatures. For this purpose we generalize the description of relativistic superfluid hydrodynamics…
Opening angles, Lorentz factors and confinement of X-ray binary jets
J. C. A. Miller-Jones, R. P. Fender, E. Nakar
We present a collation of the available data on the opening angles of jets in X-ray binaries, which in most cases are small (less than 10 degrees). Under the assumption of no confi…
An excess of damped Lyman alpha galaxies near QSOs
David M. Russell, Sara L. Ellison, Chris R. Benn
We present a sample of 33 damped Lyman alpha systems (DLAs) discovered in the Sloan Digital Sky Survey (SDSS) whose absorption redshifts (z_abs) are within 6000 km/s of the QSO's s…
XMM Spectroscopy of the Transient Supersoft Source RX J0513.9-6951: probing the dynamic white dwarf photosphere
Katherine E. McGowan, Phil A. Charles, Alexander J. Blustin +3
The highly luminous (> 10^37 erg s^-1) supersoft X-ray sources (SSS) are believed to be Eddington limited accreting white dwarfs undergoing surface hydrogen burning. The current pa…
AGN in deep radio/X-ray surveys: hunting the earliest massive galaxies
Nick Seymour, Derek Moss, Ian McHardy +4
Despite the plethora of deep (sub-mJy) radio surveys there remains considerable doubt as to the exact nature of the galaxies contributing to the source counts. Current evidence sug…
X-ray variability of NGC 3227 and NGC 5506 and the nature of AGN `states'
P. Uttley, I. M. McHardy
We use X-ray monitoring data obtained over a broad range of time-scales to measure the broadband power spectral density functions (PSDs) of two Seyfert galaxies, the broad line Sey…