by Richard E. | Dec 15, 2025 | Black Holes and Gravitational Waves, Dark matter and dark energy, Self Gravitating Quantum Matter
Together with Chris Gordon and Shreyas Tiruvaskar, from the University of Canterbury, Auckland cosmologists Richard Easther and Russell Boey have shown that measurements of ultralow frequency gravitational waves will lead to stringent tests of a novel theory of dark...
by Richard E. | Dec 12, 2025 | Feature, News
We are looking to hire a cosmology post-doc, looking at gravitational waves, galactic dynamics, ultralight dark matter and inhomogeneity in the post-inflationary universe. (These are connected because both systems are described by the Schrödinger-Poisson equation.) ...
by Richard E. | Nov 12, 2025 | Feature, News
The cosmology team is very happy to be involved with a successful Marsden Council grant, which will support New Zealand’s connections with LISA and the Vera C. Rubin Observatory and, among things cosmology research at the University of Auckland. For more details...
by Richard E. | Oct 3, 2025 | Primordial nonlinearity
Oscillons are mathematical curiosities: they are waves, but waves that “jog on the spot” rather than travelling through a medium. They only exist in materials that respond nonlinearly to stretching (and with a specific kind of nonlinearity) but it turns...
by Richard E. | Jun 19, 2025 | Black Holes and Gravitational Waves, Dark matter and dark energy, Self Gravitating Quantum Matter
We simulated binary supermassive black holes moving in an ultralight dark matter soliton. The simulations ran longer and at higher resolution than earlier efforts. For black hole and soliton parameters consistent with very large galaxies the orbit decayed faster than...
