Browsing Research Articles (Physics) by Author "Heywood, Ian"
Now showing items 1-4 of 4
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MIGHTEE-Hi: The relation between the Hi gas in galaxies and the cosmic web
Tudorache, Madalina N.; Jarvis, Matthew J.; Heywood, Ian (Oxford University Press, 2022)We study the 3D axis of rotation (3D spin) of 77 Hi galaxies from the MIGHTEE-Hi Early Science observations, and its relation to the filaments of the cosmic web. For this Hi-selected sample, the alignment between the spin ... -
The preferentially magnified active nucleus in IRAS F10214+4724 - III. VLBI observations of the radio core
Deane, Roger P.; Rawlings, S.; Jarvis, Matt; Garrett, M. A.; Heywood, Ian; Klöckner, H. R.; Marshall, P. J.; McKean, J. P. (Oxford University Press, 2013)We report 1.7GHz very long baseline interferometry (VLBI) observations of IRAS F10214+4724, a lensed z = 2.3 obscured quasar with prodigious star formation. We detect what we argue to be the obscured active nucleus with ... -
Sample variance, source clustering and their influence on the counts of faint radio sources
Heywood, Ian; Jarvis, Matt; Condon, James J. (Oxford University Press, 2013)The shape of the curves defined by the counts of radio sources per unit area as a function of their flux density was one of the earliest cosmological probes. Radio source counts continue to be an area of astrophysical ... -
A unique, ring-like radio source with quadrilateral structure detected with machine learning
Lochner, Michelle; Rudnick, Lawrence; Heywood, Ian (Oxford University Press, 2023)We report the discovery of a unique object in the MeerKAT Galaxy Cluster Le gacy Survey (MGCLS) using the machine learning anomaly detection framework ASTRONOMALY. This strange, ring-like source is 30 from the MGCLS field ...