activity
20192026
most citedA search for non-thermal radio emission from jets of massive young stellar objects

30 citations · 50 across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.GA2026

Synchrotron filaments in radio galaxies: rarity, stability, and environmental influences from LOFAR and ROSAT observations

Geoffrey Ong'alo, Martin J. Hardcastle, Willice Obonyo +2

We present a systematic investigation of filamentary synchrotron structures in radio galaxies, using deep 144 MHz observations from the LOFAR Two-Metre Sky Survey (LoTSS) in combin…

astro-ph.GA2026

SMGPS: A study of Galactic HII regions with extended morphology

Athanaseus J. T. Ramaila, Mark A. Thompson, Oleg M. Smirnov +7

We present a study of ionised hydrogen () regions in the Galactic Plane using data from the SARAO MeerKAT Galactic Plane Survey (SMGPS). The SMPG…

astro-ph.GA2026

Determination of kinematic distances of WISE & SMGPS H II regions in the Galactic plane using SEDIGISM cloud association

Moses Langa, Mark Thompson, Andrew Rigby +7

One of the fundamental requirements for studying and understanding Galactic structure and massive star formation is accurate distances to H II regions. However, most distance assig…

astro-ph.IM2026

Extending the SKA Across Africa: The Case for a Continental African VLBI Network

Emmanuel K. Bempong-Manful, Jompoj Wongphechauxsorn, Jack Radcliffe +31

The African continent holds the key to unlocking the full potential of global Very Long Baseline Interferometry (VLBI). Strategic placement of radio telescopes across Africa provid…

astro-ph.GA2025★ 1 cited

H II regions and supernova remnants associated with molecular clouds: A pilot study with the SARAO MeerKAT Galactic Plane Survey

Moses O. Langa, Mark A. Thompson, Andrew J. Rigby +5

Massive stars (mass beyond 8 solMass) release vast amounts of energy into the interstellar medium through their stellar winds, photoionising radiation and supernova explosions. The…

astro-ph.GA2025

The SARAO MeerKAT Galactic Plane Survey compact source catalogue

Mubela Mutale, Mark A. Thompson, Gwenllian M. Williams +11

We present a catalogue of compact sources detected in the SARAO MeerKAT 1.3 GHz Galactic Plane Survey (SMGPS). We extract 510599 compact sources, with areas less than five 8" beams…

astro-ph.GA2025★ 6 cited

Non-thermal Radio Emission from Massive Protostars in the SARAO MeerKAT Galactic Plane Survey

W. O Obonyo, M. G Hoare, S. L Lumsden +7

We present an investigation of the L-band emission from known massive young stellar objects (MYSOs) in the SARAO MeerKAT Galactic Plane Survey to search for non-thermal radio emitt…

astro-ph.GA2025

High-resolution radio observations of massive protostars in the SARAO MeerKAT Galactic Plane Survey

W. O Obonyo, M. G Hoare, S. L Lumsden +2

We present high-resolution observations made with the Australia Telescope Compact Array (ATCA) at 5.5 GHz and 9.0 GHz of a sample of twenty-eight massive protostars. These protosta…

astro-ph.GA2024★ 1 cited

The SARAO MeerKAT Galactic Plane Survey filamentary source catalogue

Gwenllian M. Williams, Mark A. Thompson, Mubela Mutale +11

We present a catalogue of filamentary structures identified in the SARAO (South African Radio Astronomy Observatory) MeerKAT 1.3 GHz Galactic Plane Survey (SMGPS). We extract 933 f…

astro-ph.GA2023★ 2 cited

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.…

astro-ph.SR2020★ 10 cited

A Multi-Epoch Study of Radio Continuum Emission from MassiveProtostars

W. O. Obonyo, S. L. Lumsden, M. G. Hoare +2

We report the results of the Jansky Very Large Array (JVLA) observation of five massive protostars at 6 and 22.2 GHz. The aim of the study was to compare their current fluxes and p…

astro-ph.SR2019★ 30 cited

A search for non-thermal radio emission from jets of massive young stellar objects

W. O. Obonyo, S. L. Lumsden, M. G. Hoare +3

Massive young stellar objects (MYSOs) have recently been shown to drive jets whose particles can interact with either the magnetic fields of the jet or ambient medium to emit non-t…