240 citations · 383 across the 11 of their papers we have counts for
11 papers
Mining the time axis with TRON - III. Discovery of a nulling pulsar towards the SMC with MeerKAT
T. Blecher, M. Geyer, O. M. Smirnov +21
We report on the discovery of a nulling pulsar, PSR J00527551, in archival MeerKAT L-band observations of the Small Magellanic Cloud (SMC). The discovery was made using the imag…
Mining the time axis with TRON. I. Millisecond pulsars in Omega Centauri, Terzan 5 and 47 Tucanae detected through MeerKAT interferometric imaging
Oleg M. Smirnov, Ian Heywood, Marisa Geyer +13
Medium-timescale (minutes to hours) radio transients are a relatively unexplored population. The wide field-of-view and high instantaneous sensitivity of instruments such as MeerKA…
Mining the time axis with TRON. II. MeerKAT detects a stellar radio flare from a distant RS CVn candidate
Oleg M. Smirnov, Aaron Golden, Talon Myburgh +14
Medium-timescale (minutes to hours) radio transients are a relatively unexplored population. The wide field-of-view and high instantaneous sensitivity of instruments such as MeerKA…
Africanus I. Scalable, distributed and efficient radio data processing with Dask-MS and Codex Africanus
Simon J. Perkins, Jonathan S. Kenyon, Lexy A. L. Andati +3
New radio interferometers such as MeerKAT, SKA, ngVLA, and DSA-2000 drive advancements in software for two key reasons. First, handling the vast data from these instruments require…
Africanus IV. The Stimela2 framework: scalable and reproducible workflows, from local to cloud compute
Oleg M. Smirnov, Sphesihle Makhathini, Jonathan S. Kenyon +4
Stimela2 is a new-generation framework for developing data reduction workflows. It is designed for radio astronomy data but can be adapted for other data processing applications. S…
Africanus III. pfb-imaging -- a flexible radio interferometric imaging suite
Hertzog L. Bester, Jonathan S. Kenyon, Audrey Repetti +8
The popularity of the CLEAN algorithm in radio interferometric imaging stems from its maturity, speed, and robustness. While many alternatives have been proposed in the literature,…
Africanus II. QuartiCal: calibrating radio interferometer data at scale using Numba and Dask
Jonathan S. Kenyon, Simon J. Perkins, Hertzog L. Bester +3
Calibration of radio interferometer data ought to be a solved problem; it has been an integral part of data reduction for some time. However, as larger, more sensitive radio interf…
The SARAO MeerKAT 1.3 GHz Galactic Plane Survey
S. Goedhart, W. D. Cotton, F. Camilo +127
We present the SARAO MeerKAT Galactic Plane Survey (SMGPS), a 1.3 GHz continuum survey of almost half of the Galactic Plane (251° 358°and 2° 61°at $|b| \le 1.…
Lossy Compression of Large-Scale Radio Interferometric Data
M Atemkeng, S Perkins, E Seck +4
This work proposes to reduce visibility data volume using a baseline-dependent lossy compression technique that preserves smearing at the edges of the field-of-view. We exploit the…
CubiCal - Fast radio interferometric calibration suite exploiting complex optimisation
J. S. Kenyon, O. M. Smirnov, T. L. Grobler +1
It has recently been shown that radio interferometric gain calibration can be expressed succinctly in the language of complex optimisation. In addition to providing an elegant fram…
Faceting for direction-dependent spectral deconvolution
C. Tasse, B. Hugo, M. Mirmont +7
The new generation of radio interferometers is characterized by high sensitivity, wide fields of view and large fractional bandwidth. To synthesize the deepest images enabled by th…