Understanding the Universe with AI

A Gresham College lecture as Visiting Professor of Cosmology, part of the series “The Unexpected Universe“. Digital technology from the early 1990s onwards produced an exponential increase in astronomical data. Within our lifetime, the entirety of the visible universe will have been mapped out: we will have seen everything there is to see. The question will then […]

Mysteries of the Dark Cosmos

Posted on Mar 2, 2021 in Gresham College, Outreach, Public lecture, Science, universe

A Gresham College lecture as Visiting Professor of Cosmology, part of the series “The Nature of Reality“. Dark matter and dark energy together make up 95% of our Universe. Yet, very little is known about them.  This lecture will present the endeavours of cosmologists and particle physicists, as they attempt to explain the fundamental nature of these […]

Inaugural lecture: From the Big Bang to AI

Posted on Jun 9, 2020 in AI, Bayes, Outreach, Public lecture, Research, Science, universe

My inaugural lecture as Professor of Astrostatistics at Imperial College London on Jan 15th 2020. A truly unique opportunity for me to sum up what I’ve learnt, from dark matter to Bayes, to the the audience to taste dark matter and feel the dark matter wind (!) and to share the journey. An unforgettable, emotional […]

The Nature of Reality

Posted on Aug 19, 2019 in Gresham College, News, Outreach, Public lecture

FREE LECTURE SERIES 2019-20 The Nature of Reality Roberto Trotta, Visiting Professor of Cosmology All lectures are free on a first-come first served basis, but we can book for schools/ colleges on [email protected]  Monday 4 November 2019, 1pm, Museum of London Weighing the Universe  The cosmic microwave background is the luminous echo of the primordial […]

Today on the arXiv: how to measure the intrinsic CMB dipole, and radio emission from DM in the Coma cluster

Posted on Oct 6, 2016 in astro-ph, Research, Science

Elena Pierpaoli and her collaborator Slavash Yasini come up with a clever way of measuring the intrinsic CMB dipole, and disentangling it from the much bigger dipole induced by the Earth motion with respect to the CMB rest frame. The key idea is that leakage of the intrinsic dipole into the monopole and quadrupole induces […]

Today on the arXiv: from light bulbs to 2 trillion dark matter particles simulations in 75 years

Posted on Sep 29, 2016 in astro-ph, News, Research

Today, Martin White suggests using a density-dependent correlation function as a tool to help distinguish General Relativity from modified gravity theories. The N-body simulation Zurich group shows impressive results from a cosmological simulation involving 2 trillion (2 x 10^12) particles, which they run on the Swiss Supercomputer in Manno using GPU-accelerated nodes, and benchmarked with […]

PhD projects for Oct 2014 entry

Posted on Feb 10, 2014 in Research, Teaching

For details about funding and how to apply, please visit this page. 1) Direct detection of dark matter and global fits  Identifying the nature of the dark matter (DM) that inhabits the Universe is arguably the most compelling undertaking in astrophysics and particle physics today. Current searches for DM include: – The Large Hadron Collider (LHC) at […]

The Theory of Everything explained

Posted on Sep 10, 2013 in Outreach, Uncategorized

I had the pleasure to act as scientific advisor for a short, sponsored movie on… cosmology and love. It’s a new Theory of Everything. It does sound an unlikely mix, but if you think about it, love is all-pervasive, just as dark matter and dark energy are. But judge for yourselves: The Theory of Everything has […]