I will present a brief status report on CTAO.
A concise overview of gravitational-wave science: the nature of gravitational waves and how we detect them, highlighting results from the latest catalog as the field shifts from first detections to using gravitational waves as precision probes of the universe.
In July 2025 the initial build of a quarter camera (QCAM-i) designed for the Cherenkov Telescope Array Observatory (CTAO) Small Sized Telescope (SST) design was tested observing the sky above Tenerife, Canary Islands. This was the first field test of the camera hardware which will eventually be used across dozens of SSTs at CTAO-South in Chile. Dark field observations (pointed away from known...
Modeling the emission of gamma-ray photons of blazars is often performed as a core step in short-term IACT blazar analyses. It is, however, of interest to analyze the temporal component of blazar emission on a long-term scale, which yields insights into temporal aspects of acceleration mechanisms through comparison with theoretical modeling.
This requires, on one hand, a consistent and...
Dark matter is one of the most important, elusive and enduring mysteries of physics in the last century. Gamma ray astronomy offers a possible avenue to determine dark matter's particle nature through observation of gamma ray by-products of its annihilation or decay. However, it is challenging to formulate a robust dark matter search given our lack of knowledge on dark matter physics and...
Cosmic rays that escape from star-forming galaxies may significantly influence the dynamics or thermodynamics of the circumgalactic gas reservoir that sustains star formation over long timescales. I will explain how our semi-analytic model for cosmic ray transport and energy loss in the CGM can, in combination with empirical inputs, constrain the importance of cosmic rays in the CGM...
The upcoming Cherenkov Telescope Array Observatory (CTAO) presents a unique opportunity to probe the as-yet unexplained Fermi-LAT galactic centre gamma-ray excess (GCE). I will present results from my research that show CTAO may be able to distinguish between two different origins of the GCE.
At very high energies, there is a deficiency in the number of muons produced in hadronic extensive air showers (EAS) in simulated interaction models compared to experimental measurements. Imaging atmospheric Cherenkov telescopes (IACTs) can be used to study this ‘muon puzzle’. These telescopes detect the resultant Cherenkov light emitted from the interaction of cosmic rays with atmospheric...
These are golden days for radio-astronomy... A number of new cool discoveries at are steadyly coming from the new generation of radio telescopes. I will update CTA-Oz with the latest results in this space.
The CTAO represents the next major step in TeV gamma-ray astronomy. CTAO is now under construction at two sites - a northern site at La Palma, Spain, and a southern site at Paranal, Chile. Together, the CTAO's North and South arrays will provide an order of magnitude improvement in performance beyond current instruments (like HESS and MAGIC) to unveil the gamma-ray sky like never before....
