Dr. Bradley S. Frank

Astrophysicist

I am an expert radio astronomer. I am the SKA Lecturer at the University of Cape Town.

Contact

Twitter @fox_mouldy

Location

Office 535, R.W. James Building,
Cape Town, Western Cape 7000 SA

Work

Department of Astronomy, University of Cape Town

SKA Lecturer

2016-01-01 — Present

The Department of Astronomy (UCT) is a globally recognised centre for astronomical research. Is the home to NRF Research Chairs, the head node for the National Astrophysics and Space Science Programme, is a leading institution in MeerKAT Large Survey Projects. Is also a host and a leading partner for the Inter-University Institute for Data Intensive Astronomy.

  • Project Scientist for the African Research Cloud Astronomy Demonstrator Project (ARCADE) and the IDIA/SKA-SA/IBM-Dome/ASTRON Pathfinder Science Regional Data Centre.
  • Implemented the first cloud focused teaching and learning intervention at UCT (second- year astronomical techniques).
  • Project Lead for the Pipelines Project at IDIA, coordinating an international team of scientific and technical experts in radio interferometry.
  • Member of the imaging Large Science Projects planned with MeerKAT, in addition to programmes with several other telescopes.
  • Lecturer for Data Science for Astronomers (M.Sc. in Data Science).
  • Supervises MSc. and Honours Students.

ASTRON

Postdoctoral Research Fellow

2013 — 2015

One of the oldest and most prestigious centres for radio astronomy in the world, has a core focus of developing technologies for the next generation of radio telescopes. Operates the LOFAR and APERTIF telescopes.

  • A member of the RadioLife science team studying radio galaxies, investigating the complex relationship between the lifecycle of the central black hole and the evolution of the parent galaxy.
  • Characterised performance bottlenecks through efficient, lightweight benchmarking of astronomical software.
  • Lead author for the specification of the APERTIF pipeline, which formed part of the successful critical design review.
  • Lead designer and developer (Python) of the APERCAL software — the main software package being used for APERTIF.

Education

University of Cape Town

2009 — 2013
Astronomy, PhD

University of the Witwatersrand

— 2008
Physics, B.Sc. (Hons)

University of the Witwatersrand

— 2007
Physics & Mathematics, B.Sc.

Awards

Frank Nabarro Memorial Prize

2008
Faculty of Science

Highest Mark for 3rd year Project

Publications

A rare example of low surface- brightness radio lobes in a gas-rich early-type galaxy: The story of NGC 3998

2016-08-04
Published by Astronomy & Astrophysics

A deep survey of NGC3998 reveals a complex picture of galaxies intertwined in mergers, interactions and triggering. The massive-early type galaxy NGC3998 has a large amount of HI and hosts a low-luminosity AGN with faint S-shaped radio lobes. We try to reconstruct the evolutionary history of this galaxy and its neighbours, linking the peculiar morphology of the low-power radio jets to the ongoing interactions in the group.

Impact of Molecular Gas in Mass Models of Nearby Galaxies

2016-03-18
Published by The Astronomical Journal

We studied the dark matter content in a sample of nearby galaxies. In particular, we used the HERACLES survey to model the contribution of the molecular gas using different conversion factors. This work is the first comprehensive study that includes molecular gas in the high-resolution study of dynamics in galaxies.

Engineering and Science Highlights of the KAT-7 Radio Telescope

2016-08-01
Published by Monthly Notices of the Royal Astronomical Society

The Karoo Array Telescope (KAT-7) telescope was the first radio interferometer in Africa, and was a pathfinder for the MeerKAT telescope. We learned many important technical and engineering lessons during the building, commissioning and operation of KAT-7, but also produced some exciting and interesting science results. This paper provides a highlight of the technical and astronomical achievements of this telescope.

KAT-7 Science Verification: Using HI Observations of NGC 3109 to Understand Its Kinematics and Mass Distribution

2013-07-29
Published by The Astronomical Journal

We used the KAT-7 telescope’s excellent low surface-brightness sensitivity to map the neutral hydrogen content in the nearby galaxy NGC3109, and we present a high spectral resolution dark matter model.

Significance of periodogram peaks and a pulsation mode analysis of the Beta Cephei star V403 Car

2008-08-21
Published by Monthly Notices of the Royal Astronomical Society

The periodogram is an essential and powerful tool in the arsenal of the stellar astrophysicist, and provides a way to study the variability of a star using unevenly sampled photometric time-series. In this work we present a method to estimate the statistical significance of peaks in the periodogram spectrum.

Skills

Calibration of Radio Data

CASA, MIRIAD, and MeqTrees

Astrophysics

Dynamical Modeling, Rotation Curves / Dark Matter Profile Fitting, and Molecular Gas.

Interests

Cricket

Power Lifting.