586 citations · 1.3k across the 17 of their papers we have counts for
17 papers
Tricolour: an optimized SumThreshold flagger for MeerKAT
Benjamin V. Hugo, Simon Perkins, Bruce Merry +2
We present Tricolour, a package for Radio Frequency Interference mitigation of wideband finely channelized MeerKAT correlation data. The MeerKAT passband is heavily affected by int…
The extended HI halo of NGC 4945 as seen by MeerKAT
Roger Ianjamasimanana, B. S. Koribalski, Gyula I. G. Józsa +20
Observations of the neutral atomic hydrogen (HI) in the nuclear starburst galaxy NGC 4945 with MeerKAT are presented. We find a large amount of halo gas, previously missed by HI ob…
MeqSilhouette v2: Spectrally-resolved polarimetric synthetic data generation for the Event Horizon Telescope
Iniyan Natarajan, Roger Deane, Iván Martí-Vidal +17
We present MeqSilhouette v2.0 (MeqSv2), a fully polarimetric, time-and frequency-resolved synthetic data generation software for simulating millimetre (mm) wavelength very long bas…
The 1.28 GHz MeerKAT Galactic Center Mosaic
I. Heywood, I. Rammala, F. Camilo +108
The inner 200 pc region of the Galaxy contains a 4 million M supermassive black hole (SMBH), significant quantities of molecular gas, and star formation and cosmic…
The MeerKAT Galaxy Cluster Legacy Survey I. Survey Overview and Highlights
K. Knowles, W. D. Cotton, L. Rudnick +148
MeerKAT's large number of antennas, spanning 8 km with a densely packed 1 km core, create a powerful instrument for wide-area surveys, with high sensitivity over a wide range of an…
MeerKAT-64 discovers wide-spread tidal debris in the nearby NGC 7232 galaxy group
Brenda Namumba, Baerbel Silvia Koribalski, Gyula I. G. Józsa +24
We report the discovery of large amounts of previously undetected cold neutral atomic hydrogen (\HI) around the core triplet galaxies in the nearby NGC~7232 galaxy group with MeerK…
Xova: Baseline-Dependent Time and Channel Averaging for Radio Interferometry
Marcellin Atemkeng, Simon Perkins, Jonathan Kenyon +2
Xova is a software package that implements baseline-dependent time and channel averaging on Measurement Set data. The uv-samples along a baseline track are aggregated into a bin un…
A practical preconditioner for wide-field continuum imaging of radio interferometric data
Hertzog L. Bester, Audrey Repetti, Simon Perkins +2
The celebrated CLEAN algorithm has been the cornerstone of deconvolution algorithms in radio interferometry almost since its conception in the 1970s. For all its faults, CLEAN is r…
MeerKAT's discovery of a radio relic in the bimodal merging cluster A2384
V. Parekh, K. Thorat, R. Kale +12
We present the discovery of a single radio relic located at the edge of the galaxy cluster A2384, using the MeerKAT radio telescope. A2384 is a nearby ( = 0.092), low mass, comp…
MeerKAT-16 HI observation of the dIrr galaxy WLM
Roger Ianjamasimanana, Brenda Namumba, Athanaseus J. T. Ramaila +19
We present observations and models of the kinematics and the distribution of the neutral hydrogen (HI) in the isolated dwarf irregular galaxy, Wolf-Lundmark-Melotte (WLM). We obser…
MeerKATHI -- an end-to-end data reduction pipeline for MeerKAT and other radio telescopes
Gyula I. G. Józsa, Sarah V. White, Kshitij Thorat +13
MeerKATHI is the current development name for a radio-interferometric data reduction pipeline, assembled by an international collaboration. We create a publicly available end-to-en…
The Panchromatic Afterglow of GW170817: The full uniform dataset, modeling, comparison with previous results and implications
Sphesihle Makhathini, Kunal P. Mooley, Murray Brightman +35
We present the full panchromatic afterglow light curve data of GW170817, including new radio data as well as archival optical and X-ray data, between 0.5 and 940 days post-merger.…
The 1.28 GHz MeerKAT DEEP2 Image
T. Mauch, W. D. Cotton, J. J. Condon +101
We present the confusion-limited 1.28 GHz MeerKAT DEEP2 image covering one FWHM primary beam area with FWHM resolution and Jy/beam rms nois…
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…
The LOFAR Two-metre Sky Survey - II. First data release
T. W. Shimwell, C. Tasse, M. J. Hardcastle +104
The LOFAR Two-metre Sky Survey (LoTSS) is an ongoing sensitive, high-resolution 120-168MHz survey of the entire northern sky for which observations are now 20% complete. We present…
Resolving the blazar CGRaBS J0809+5341 in the presence of telescope systematics
Iniyan Natarajan, Zsolt Paragi, Jonathan Zwart +3
We analyse Very Long Baseline Interferometry (VLBI) observations of the blazar CGRaBS J0809+5341 using Bayesian inference methods. The observation was carried out at 5 GHz using 8…
Montblanc: GPU accelerated Radio Interferometer Measurement Equations in support of Bayesian Inference for Radio Observations
Simon Perkins, Patrick Marais, Jonathan Zwart +3
We present Montblanc, a GPU implementation of the Radio interferometer measurement equation (RIME) in support of the Bayesian inference for radio observations (BIRO) technique. BIR…