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Theoretical physicists working at a blackboard collaboration pod in the Beecroft building.
Credit: Jack Hobhouse

Thomas Spieksma

Postdoctoral Research Assistant

Research theme

  • Astronomy and astrophysics
  • Particle astrophysics & cosmology
  • Fundamental particles and interactions

Sub department

  • Rudolf Peierls Centre for Theoretical Physics

Research groups

  • Particle theory
thomas.spieksma@physics.ox.ac.uk
Rudolf Peierls Centre for Theoretical Physics, room 60.25
  • About

I’m a theoretical physicist studying black holes and gravitational waves. My research explores the environments surrounding black holes and their impact on gravitational-wave astronomy. One particularly intriguing case involves environments composed of ultralight scalar or vector fields. Through a process known as superradiance, these fields can extract energy and angular momentum from rotating black holes, forming dense “clouds” around them.

To investigate the formation and evolution of these clouds, and their influence on binary black hole systems, I use a combination of analytical modelling, perturbation theory, and numerical relativity simulations. By predicting the resulting gravitational-wave signatures, my goal is to use black holes as natural particle detectors, probing new fundamental fields such as the QCD axion or other dark matter candidates.

If you’re interested in these topics, feel free to get in touch by email or stop by my office! 

Publications

Research interests

Black holes
Gravitational Waves
Axions
Dark Matter
Astroparticle Physics

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