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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…
Observing protoplanetary discs with the Square Kilometre Array -- I. Characterising pebble substructure caused by forming planets
John D. Ilee, Cassandra Hall, Catherine Walsh +5
High angular resolution observations of discs at mm wavelengths (on scales of a few au) are now commonplace, but there is a current lack of a comparable angular resolution for obse…
A Detailed View of the Circumstellar Environment and Disk of the Forming O-star AFGL 4176
K. G. Johnston, M. G. Hoare, H. Beuther +5
We present a detailed analysis of the disk and circumstellar environment of the forming O-type star AFGL 4176 mm1, placing results from the Atacama Large Millimeter/submillimeter A…
High-resolution radio astronomy: an outlook for Africa
Leonid I. Gurvits, Robert Beswick, Melvin Hoare +5
Very Long Baseline Interferometry (VLBI) offers unrivalled resolution in studies of celestial radio sources. The subjects of interest of the IAU Symposium No. 356, the Active Galac…