activity
20222026
most citedA unique, ring-like radio source with quadrilateral structure detected with machine learning

30 citations · 38 across the 7 of their papers we have counts for

collaborators

8 papers

astro-ph.HE2026

Multiwavelength Classification of Chandra Sources in Omega Centauri

Steven Chen, Oleg Kargaltsev, Jeremy Hare +4

We present a comprehensive study of X-ray sources in the globular cluster NGC 5139 to date. Over 200 Chandra sources are cross-matched to multiwavelength catalogs from HST, JWST, a…

astro-ph.HE2026

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…

astro-ph.IM2026

Breakthrough Listen's Automated Commensal Technosignature Survey with MeerKAT

Daniel J. Czech, David H. E. MacMahon, Ian Heywood +20

The search for extraterrestrial intelligence (SETI) is an ongoing effort to detect technosignatures, evidence of technologically capable life beyond Earth. Conducting a comprehensi…

astro-ph.GA2025

HI gas in the rejuvenated radio galaxy PKS 2014-55

Leon Mtshweni, Kshitij Thorat, Roger P. Deane +17

We present new high-spectral-resolution MeerKAT observations of absorption against the central region of the restarted, giant, X-shaped radio galaxy PKS2014-55, which…

astro-ph.IM2025★ 4 cited

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…

astro-ph.IM2025

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…

astro-ph.IM2024★ 4 cited

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,…

astro-ph.GA2022★ 30 cited

A unique, ring-like radio source with quadrilateral structure detected with machine learning

Michelle Lochner, Lawrence Rudnick, Ian Heywood +2

We report the discovery of a unique object in the MeerKAT Galaxy Cluster Legacy Survey (MGCLS) using the machine learning anomaly detection framework Astronomaly. This strange, rin…