activity
20232026
most citedComprehensive Radio Monitoring of the Black Hole X-ray Binary Swift J1727.81613 during its 20232024 Outburst

8 citations · 21 across the 20 of their papers we have counts for

collaborators

22 papers

astro-ph.HE2026

The compact jets of the black hole X-ray binary Swift J1753.5-0127 during its 2023-2024 outburst

Noa Grollimund, Stéphane Corbel, Lauren Rhodes +14

X-ray binaries are excellent laboratories to study the coupling between accretion and ejection phenomena around compact objects through multiwavelength observations. Swift J1753.5-…

astro-ph.HE2026

Kink instability as a particle acceleration mechanism in X-ray binaries and the connection to the outburst cycle

Emma L. Elley, James H. Matthews, Alex J. Cooper +2

We consider whether the kink instability can explain particle acceleration in hard state 'compact' X-ray binary jets. We apply a 1D model to assess the expected growth rate of the…

astro-ph.HE2026

Radio flares and X-ray hardening embedded in the long soft state of 4U 1543-475

Zuobin Zhang, Rob Fender, Jiachen Jiang +14

We present a comprehensive multi-wavelength study of the black hole X-ray binary 4U 1543-475 during its 2021 outburst, focusing on radio flaring episodes that are commonly interpre…

astro-ph.HE2026

Multi-wavelength Constraints on the Transient EP250905a

J. Quirola-Vasquez, P. G. Jonker, A. Levan +30

Fast X-ray transients (FXTs) are a diverse class of high-energy suggested origins, ranging from stellar explosions to compact object mergers. The Einstein Probe (EP) satellite disc…

astro-ph.HE2026

The link between extreme particle acceleration and X-ray binary jets

Laura Olivera-Nieto, Fraser J. Cowie, Sera Markoff +2

The detection of multi-TeV radiation from a handful of black-hole X-ray binaries (BHXRBs) has positioned the source class as promising candidate to explain the cosmic-ray flux in t…

astro-ph.HE2026

Spectropolarimetric detection of baryonic mass loading in a transient relativistic jet: application to the black hole X-ray binary Swift J1727.81613

A. K. Hughes, R. P. Fender, G. R. Sivakoff +10

Radio emission during X-ray binary outbursts is dominated by synchrotron radiation from relativistic jets, but is usually studied through total-intensity diagnostics such as flux d…

astro-ph.HE2026

Observational Biases and Improved Modelling of Off-axis Relativistic Jets

A. J. Cooper, A. P. Scott, L. Rhodes +8

Relativistic Doppler boosting significantly affects the observed emission of astrophysical jets resulting in observational biases. In this work we investigate the observational bia…

astro-ph.HE2026

Towards improved synchrotron self absorption energy estimates: accounting for inhomogeneous and non-spherical emitting regions

F. J. Cowie, R. P. Fender

Synchrotron self absorption (SSA) is seen across a variety of astrophysical sources, and observation of an SSA peak in the spectrum is a powerful tool for estimating the physical c…

astro-ph.HE2026

Probing a new subclass of llGRB-SN transients: Insights from EP250304a and its associated supernova

L. Cotter, A. Martin-Carrillo, R. A. J. Eyles-Ferris +62

With the advent of the Einstein Probe (EP) mission, we are entering a new era in the study of gamma-ray bursts (GRBs), enabling the detection of faint, low-luminosity transients th…

astro-ph.HE2026

The Homogeneous MeerKAT and Swift/XRT X-ray Binary Radio:X-ray Plane

Justine Crook-Mansour, Rob Fender, Andrew Hughes +22

During the hard and quiescent spectral states in X-ray binaries, a non-linear correlation is observed between radio and X-ray luminosities, providing a valuable tool to probe the c…

astro-ph.HE2026

Detection of an Extremely Luminous Radio Counterpart to the Be/X-ray Binary A0538-66

Justine Crook-Mansour, Rob Fender, Alex Andersson +14

We present the discovery of radio emission from the Be/X-ray binary A0538-66 with the Australian Square Kilometre Array Pathfinder (ASKAP), and results from a subsequent weekly mon…

astro-ph.HE2026

Dynamic shocks powered by a wide, relativistic, super-Eddington outflow launched by an accreting neutron star in the mid-20th century

F. J. Cowie, R. P. Fender, I. Heywood +11

Accreting systems can launch powerful outflows which interact with the surrounding medium. We combine new radio observations of the accreting neutron star X-ray binary (XRB) Circin…

astro-ph.HE2026★ 4 cited

Large-scale radio bubbles around the black hole transient V4641 Sgr

Noa Grollimund, Stéphane Corbel, Rob Fender +7

Black holes (BHs) in microquasars can launch powerful relativistic jets that have the capacity to travel up to several parsecs from the compact object and interact with the interst…

astro-ph.HE2025

Relativistic precessing jets powered by an accreting neutron star

F. J. Cowie, R. P. Fender, I. Heywood +9

Precessing relativistic jets launched by compact objects are rarely directly measured, and present an invaluable opportunity to better understand many features of astrophysical jet…

astro-ph.HE2025

A relativistic jet from a neutron star breaking out of its natal supernova remnant

K. V. S. Gasealahwe, K. Savard, I. M. Monageng +10

The young neutron star X-ray binary, Cir X-1, resides within its natal supernova remnant and experiences ongoing outbursts every 16.5 days, likely due to periastron passage in an e…

astro-ph.HE2025★ 8 cited

Comprehensive Radio Monitoring of the Black Hole X-ray Binary Swift J1727.81613 during its 20232024 Outburst

Andrew K. Hughes, Francesco Carotenuto, Thomas D. Russell +39

This work presents comprehensive multi-frequency radio monitoring of the black hole low-mass X-ray binary Swift J1727.81613, which underwent its first recorded outburst after it…

astro-ph.HE2025

The peculiar hard state behaviour of the black hole X-ray binary Swift J1727.81613

A. K. Hughes, F. Carotenuto, T. D. Russell +37

Tracking the correlation between radio and X-ray luminosities during black hole X-ray binary outbursts is a key diagnostic of the coupling between accretion inflows (traced by X-ra…

astro-ph.HE2025★ 1 cited

Gone with the Wind: JWST-MIRI Unveils a Strong Outflow from the Quiescent Stellar-Mass Black Hole A0620-00

Zihao Zuo, Gabriele Cugno, Joseph Michail +15

We present new observations of the black hole X-ray binary A0620-00 using the Mid-Infrared Instrument on the James Webb Space Telescope, during a state where the X-ray luminosity i…

astro-ph.HE2025

Blast waves and reverse shocks: from ultra-relativistic GRBs to moderately relativistic X-ray binaries

James H. Matthews, Alex J. Cooper, Lauren Rhodes +8

Blast wave models are commonly used to model relativistic outflows from ultra-relativistic gamma-ray bursts (GRBs), but are also applied to lower Lorentz factor ejections from X-ra…

astro-ph.HE2024★ 1 cited

Discovery of the optical and radio counterpart to the fast X-ray transient EP240315a

J. H. Gillanders, L. Rhodes, S. Srivastav +36

Fast X-ray Transients (FXTs) are extragalactic bursts of soft X-rays first identified >10 years ago. Since then, nearly 40 events have been discovered, although almost all of these…

astro-ph.CO2023

Constraints on the origin of the radio synchrotron background via angular correlations

Elisa Todarello, Marco Regis, Federico Bianchini +7

The origin of the radio synchrotron background (RSB) is currently unknown. Its understanding might have profound implications in fundamental physics or might reveal a new class of…

astro-ph.CO2023★ 7 cited

Diffuse Sources, Clustering and the Excess Anisotropy of the Radio Synchrotron Background

F. J. Cowie, A. R. Offringa, B. K. Gehlot +4

We present the largest low frequency (120~MHz) arcminute resolution image of the radio synchrotron background (RSB) to date, and its corresponding angular power spectrum of anisotr…