327 citations · 1.7k across the 47 of their papers we have counts for
46 papers
Frequency Phase Transfer for Future Millimetre Arrays with Arbitrary Frequency Ratios
Senkhosi Simelane, Athol Kemball, Roger Deane
Non-dispersive tropospheric turbulence-induced phase delays enforce significant, often dominant, limitations to the imaging fidelity and dynamic range in (sub-)millimetre astronomy…
MeerKAT discovery of a high-redshift strongly-lensed hydroxyl gigamaser
Thato E. Manamela, Roger P. Deane, Tariq Blecher +3
At low redshifts, hydroxyl megamasers (OHMs) have been shown to trace galaxy mergers, obscured starbursts, high molecular gas densities, and candidate dual supermassive black hole…
Efficient Exoplanet Imaging Simulations of the Habitable Worlds Observatory
Jamila Taaki, Farzad Kamalabadi, Athol Kemball +2
Direct imaging simulations of starshades and other proposed mission concepts are needed to characterize planet detection performance and inform mission design trades. In order to a…
A Search for Exoplanet Candidates in TESS 2-min Light Curves using Joint Bayesian Detection
Jamila S. Taaki, Athol J. Kemball, Farzad Kamalabadi
In this work, we apply an exploratory joint Bayesian transit detector (Taaki et al. 2020), previously evaluated using Kepler data, to the 2 min simple aperture photometry light cur…
Evaluation of South African Candidate Sites for an Expanded Event Horizon Telescope
Senkhosi Simelane, Roger Deane, Athol Kemball +5
Global expansion of the Event Horizon Telescope (EHT) will see the strategic addition of antennas at new geographical locations, transforming the sensitivity and imaging fidelity o…
Robust Detrending of Spatially Correlated Systematics in Kepler Light Curves Using Low-Rank Methods
Jamila Taaki, Athol Kemball, Farzad Kamalabadi
Light curves produced by wide-field exoplanet transit surveys such as CoRoT, Kepler, and TESS are affected by sensor-wide systematic noise which is correlated both spatiotemporally…