159 citations · 241 across the 22 of their papers we have counts for
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Accreting Neutron Stars in Low-Mass X-ray Binaries
M. C. Baglio, S. E. Motta, A. P. Nitindala +1
Neutron star low-mass X-ray binaries (NS LMXBs) are systems in which a neutron star accretes matter from a Roche-lobe-filling companion via an accretion disc, releasing gravitation…
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…
Transforming X-ray Binary Astrophysics with SKA+VLBI
Tao An, Ailing Wang, James C. A. Miller-Jones +6
X-ray binaries (XRBs) are unique laboratories where accretion, jets, strong gravity and magnetic fields can be probed on humanly tractable timescales. The phased SKA-Mid operating…
Accreting Compact Object Binaries with the SKA
Aru Beri, Francesco Carotenuto, Rob P. Fender +4
Accreting binary systems provide a time-resolved view of the accretion and ejection processes that are seen in all classes of compact objects, from stellar-mass to supermassive. Th…
The link between obscured accretion and mildly relativistic precessing jets
Rob Fender, Sara Motta
We have recently shown evidence that the most relativistic jets (with Lorentz factor >2) from stellar-mass black holes in X-ray binary systems may be locked to a fixed axis, likely…
On The Nature of Einstein Probe Transient EP250916a: Insights from X-ray, Optical, and Radio Observations
Gaurava K. Jaisawal, Giulia Illiano, Francesco Carotenuto +7
We report multi-wavelength studies of the transient EP250916a, detected by the Einstein Probe on 2025 September 16. Located at low Galactic latitude, the source exhibited a rapid X…
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…
Multi-wavelength outburst activity from EP J174942.2-384834: a very faint X-ray transient discovered by Einstein Probe
F. Coti Zelati, A. Marino, Y. L. Wang +27
We report the discovery and multi-wavelength characterization of the Galactic transient EP J174942.2384834, first detected by the Einstein Probe during a faint X-ray outburst in…
Exploring the potential for ultra-relativistic jets in Scorpius X-1 with low angular resolution radio observations
I. Stephens, L. Rhodes, A. J. Cooper +2
Scorpius X-1 (Sco X-1) is a neutron star X-ray binary in which the neutron star is accreting rapidly from a low mass stellar companion. At radio frequencies, Sco X-1 is highly lumi…
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…
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…
An ultraviolet burst oscillation candidate from the low-mass X-ray binary EXO 0748-676
A. Miraval Zanon, F. Ambrosino, G. Illiano +15
X-ray burst oscillations are quasi-coherent periodic signals at frequencies close to the neutron star spin frequency. They are observed during thermonuclear Type I X-ray bursts fro…
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…
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…
The Accretion-Ejection Connection in the Black Hole X-ray Binary MAXI J1820070
Joe S. Bright, Rob Fender, David M. Russell +12
The black hole X-ray binary MAXI J1820070 began its first recorded outburst in March 2018, and remained an active radio, X-ray, and optical source for over four years. Due to th…
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,…
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…
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…
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…
Polarized multiwavelength emission from pulsar wind - accretion disk interaction in a transitional millisecond pulsar
M. C. Baglio, F. Coti Zelati, A. Di Marco +17
Transitional millisecond pulsars (tMSPs) bridge the evolutionary gap between accreting neutron stars in low-mass X-ray binaries and millisecond radio pulsars. These systems exhibit…
The faint "heartbeats" of IGR J17091-3624: an exceptional black-hole candidate
D. Altamirano, T. Belloni, M. Linares +9
We report on the first 180 days of RXTE observations of the outburst of the black hole candidate IGR J17091-3624. This source exhibits a broad variety of complex light curve patter…