295 citations · 1.9k across the 28 of their papers we have counts for
24 papers
The Nearest Galactic Nucleus: Studying the Galactic Centre with SKA-Mid
Rainer Schoedel, Antxon Alberdi, Izaskun Jiménez-Serra +24
The Galactic Centre is the nearest nucleus of a galaxy and the most extreme environment that we can observe down to physical scales of a few hundred astronomical units. There is no…
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…
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…
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…
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…
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…
The SKA Galactic Centre Survey -- A White Paper
Rainer Schoedel, Antxon Alberdi, Izaskun Jimenez-Serra +17
With its extreme density of stars and stellar remnants, dense young massive clusters, high specific star formation rate, intense radiation field, high magnetic field strength, and…
MeerKAT discovery of radio emission from the Vela X-1 bow shock
J. van den Eijnden, I. Heywood, R. Fender +7
Vela X-1 is a runaway X-ray binary system hosting a massive donor star, whose strong stellar wind creates a bow shock as it interacts with the interstellar medium. This bow shock h…
Observations of a radio-bright, X-ray obscured GRS 1915+105
S. E. Motta, J. J. E. Kajava, M. Giustini +9
The Galactic black hole transient GRS1915+105 is famous for its markedly variable X-ray and radio behaviour, and for being the archetypal galactic source of relativistic jets. It e…
Observation of inverse Compton emission from a long -ray burst
V. A. Acciari, S. Ansoldi, L. A. Antonelli +301
Long-duration gamma-ray bursts (GRBs) originate from ultra-relativistic jets launched from the collapsing cores of dying massive stars. They are characterised by an initial phase o…
An extremely powerful long-lived superluminal ejection from the black hole MAXI J1820+070
J. S. Bright, R. P. Fender, S. E. Motta +25
Black holes in binary systems execute patterns of outburst activity where two characteristic X-ray states are associated with different behaviours observed at radio wavelengths. Th…
Radio & X-ray detections of GX 339--4 in quiescence using MeerKAT and Swift
E. Tremou, S. Corbel, R. P. Fender +12
The radio:X-ray correlation that characterises accreting black holes at all mass scales - from stellar mass black holes in binary systems to super-massive black holes powering Acti…
Cosmic-ray Particles in the Galactic Center: Blowing in the Wind
F. Yusef-Zadeh, M. Wardle, I. Heywood +2
Recent results from multi-wavelength observations of the inner few hundred pc of the Galactic center have added two new characteristics to the ISM in this unique region. One is the…
The 2018 outburst of BHXB H1743-322 as seen with MeerKAT
D. R. A. Williams, S. E. Motta, R. Fender +11
In recent years, the black hole candidate X-ray binary system H1743-322 has undergone outbursts and it has been observed with X-ray and radio telescopes. We present 1.3 GHz MeerKAT…
Inflation of 430-parsec bipolar radio bubbles in the Galactic Centre by an energetic event
I. Heywood, F. Camilo, W. D. Cotton +96
The Galactic Centre contains a supermassive black hole with a mass of 4 million suns within an environment that differs markedly from that of the Galactic disk. While the black hol…
Nine-hour X-ray quasi-periodic eruptions from a low-mass black hole galactic nucleus
G. Miniutti, R. D. Saxton, M. Giustini +11
In the past two decades, high amplitude electromagnetic outbursts have been detected from dormant galaxies and often attributed to the tidal disruption of a star by the central bla…
Disk-jet coupling in the 2017/2018 outburst of the Galactic black hole candidate X-ray binary MAXI J1535-571
T. D. Russell, A. J. Tetarenko, J. C. A. Miller-Jones +19
MAXI J1535-571 is a Galactic black hole candidate X-ray binary that was discovered going into outburst in 2017 September. In this paper, we present comprehensive radio monitoring o…
A Strong Jet Signature in the Late-Time Lightcurve of GW170817
K. P. Mooley, D. A. Frail, D. Dobie +19
We present new 0.6-10 GHz observations of the binary neutron star merger GW170817 covering the period up to 300 days post-merger, taken with the Karl G. Jansky Very Large Array, th…
ThunderKAT: The MeerKAT Large Survey Project for Image-Plane Radio Transients
R. Fender, P. A. Woudt, R. Armstrong +59
ThunderKAT is the image-plane transients programme for MeerKAT. The goal as outlined in 2010, and still today, is to find, identify and understand high-energy astrophysical process…
Ground-state 12CO emission and a resolved jet at 115 GHz (rest-frame) in the radio loud quasar 3C318
Ian Heywood, Alejo Martinez-Sansigre, Chris J. Willott +1
An analysis of 44 GHz VLA observations of the z = 1.574 radio-loud quasar 3C318 has revealed emission from the redshifted J = 1 - 0 transition of the CO molecule and spatially reso…
The closest black holes
Rob Fender, Tom Maccarone, Ian Heywood
Starting from the assumption that there is a large population (> 10^8) of isolated, stellar-mass black holes (IBH) distributed throughout our galaxy, we consider the detectable sig…
Future Science Prospects for AMI
Keith Grainge, Paul Alexander, Richard Battye +72
The Arcminute Microkelvin Imager (AMI) is a telescope specifically designed for high sensitivity measurements of low-surface-brightness features at cm-wavelength and has unique, im…