collaborators

6 papers

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.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

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

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

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…