activity
20242026
most citedMeerKAT discovers a jet-driven bow shock near GRS 1915+105. How an invisible large-scale jet sculpts a microquasar's environment

14 citations · 64 across the 19 of their papers we have counts for

collaborators

20 papers

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

Dense, multi-phase accretion disk atmosphere in the low-luminosity state of black hole transientV4641 Sgr

Zuobin Zhang, Rob Fender, James H. Matthews +11

We present soft X-ray spectroscopy of the black-hole X-ray binary V4641~Sgr with the \textit{XMM-Newton} Reflection Grating Spectrometer (RGS). The RGS spectrum shows narrow emissi…

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★ 1 cited

A MeerKAT view of the parsec-scale jets in the black-hole X-ray binary GRS 1758-258

I. Mariani, S. E. Motta, P. Atri +5

Jets from accreting black hole (BH) X-ray binaries (XRBs) are powerful outflows that release a large fraction of the accretion energy to the surrounding environment, providing a fe…

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

Monte-Carlo radiation hydrodynamic simulations of line-driven disc winds: relaxing the isothermal approximation

Amin Mosallanezhad, Christian Knigge, Nicolas Scepi +4

Disc winds play a crucial role in many accreting astrophysical systems across all scales. In accreting white dwarfs (AWDs) and active galactic nuclei (AGN), radiation pressure on s…

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

Relativistic ejecta from stellar mass black holes: insights from simulations and synthetic radio images

Katie Savard, James H. Matthews, Rob Fender +1

We present numerical simulations of discrete relativistic ejecta from an X-ray binary (XRB) with initial conditions directly informed by observations. XRBs have been observed to la…

astro-ph.HE2025★ 14 cited

MeerKAT discovers a jet-driven bow shock near GRS 1915+105. How an invisible large-scale jet sculpts a microquasar's environment

S. E. Motta, P. Atri, James H. Matthews +5

Black holes, both supermassive and stellar-mass, impact the evolution of their surroundings on a large range of scales. While the role of supermassive black holes is well studied,…

astro-ph.HE2025★ 9 cited

Quantifying jet-interstellar medium interactions in Cyg X-1: Insights from dual-frequency bow shock detection with MeerKAT

P. Atri, S. E. Motta, Jakob van den Eijnden +6

Accretion and outflows are astrophysical phenomena observed across a wide range of objects, from white dwarfs to supermassive black holes. Developing a complete picture of these pr…

astro-ph.HE2025★ 3 cited

Jets from a stellar-mass black hole are as relativistic as those from supermassive black holes

Xian Zhang, Wenfei Yu, Francesco Carotenuto +15

Relativistic jets from supermassive black holes in active galactic nuclei are amongst the most powerful phenomena in the universe, acting to regulate the growth of massive galaxies…

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.HE2025★ 2 cited

The origin of the very-high-energy radiation along the jet of Centaurus A

Cainã de Oliveira, James H. Matthews, Vitor de Souza

As the closest known active galactic nucleus, Centaurus A (Cen A) provides a rich environment for astrophysical exploration. It has been observed across wavelengths from radio to g…

astro-ph.HE2025

Galaxy scale consequences of tidal disruption events: extended emission line regions, extreme coronal lines and infrared-to-optical light echoes

Andrew Mummery, Muryel Guolo, James Matthews +3

Stars in galactic centers are occasionally scattered so close to the central supermassive black hole that they are completely disrupted by tidal forces, initiating a transient accr…

astro-ph.HE2025★ 7 cited

Joint Radiative and Kinematic Modelling of X-ray Binary Ejecta: Energy Estimate and Reverse Shock Detection

A. J. Cooper, J. H. Matthews, F. Carotenuto +6

Black hole X-ray binaries in outburst launch discrete, large-scale jet ejections which can propagate to parsec scales. The kinematics of these ejecta appear to be well described by…

astro-ph.HE2025

Type I X-ray Burst Emission Reflected into the Eclipses of EXO 0748-676

Amy H. Knight, Jakob van den Eijnden, Adam Ingram +8

The neutron star X-ray binary, EXO 0748--676, was observed regularly by the Rossi X-ray Timing Explorer (RXTE) and XMM-Newton during its first detected outburst (1985 - 2008). Thes…

astro-ph.HE2024★ 5 cited

Simultaneous Optical and X-ray Detection of a Thermonuclear Burst in the 2024 Outburst of EXO 0748-676

Amy H. Knight, Lauren Rhodes, Douglas J. K. Buisson +5

The neutron star low-mass X-ray binary, EXO 0748--676, recently returned to outburst after a 16 year-long quiescence. Since its return, there has been a global effort to cap…

astro-ph.HE2024

The Radio Counterpart to the Fast X-ray Transient EP240414a

Joe S. Bright, Francesco Carotenuto, Rob Fender +10

Despite being operational for only a short time, the Einstein Probe mission, with its large field of view and rapid localisation capabilities, has already significantly advanced th…

hep-ph2024★ 11 cited

Getting More Out of Black Hole Superradiance: a Statistically Rigorous Approach to Ultralight Boson Constraints from Black Hole Spin Measurements

Sebastian Hoof, David J. E. Marsh, Júlia Sisk-Reynés +2

Black hole (BH) superradiance can provide strong constraints on the properties of ultralight bosons (ULBs). While most of the previous work has focused on the theoretical predictio…