In the first part of this talk I will present a historical review of the CMB observations, one of the most powerful cosmological probes. Following the first...
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TalkCosmic Microwave Background observations
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TalkCosmological giants and elves: galaxy formation and the small scale of cold dark matter
I will review the status of our understanding of galaxy formation in the prevailing cold dark matter paradigm. After reviewing the successes and failures of the...
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TalkCosmology on small scales: the structure of (mostly) dark matter halos
The standard model of cosmology -- the ``Lambda cold dark matter'' model -- is based on the idea that the dark matter is a collisionless elementary particle...
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PublicationCusped Mass Models of Gravitational Lenses
Recent observations of galaxy luminosity profiles and dark matter simulations find luminosity and mass distributions characterized by central cusps rather than...
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TalkDALI, a pioneering dark matter telescope
Axion detection would be one of the most exciting moments in the entire history of science. This hypothetical particle can simultaneously explain two...
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PublicationDark bursts in the Swift era
The nature of the dark bursts is still not fully understood. Here, we report on some of our recent studies on Swift dark bursts. Thereby, we pay particular...
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TalkDark Energy and Cosmic Sound
I will discuss how the acoustic oscillations that propagate in the photon-baryon fluid during the first million years of the Universe provide a robust method...
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PublicationDark Energy Survey Year 3 results: galaxy-halo connection from galaxy-galaxy lensing
Galaxy-galaxy lensing is a powerful probe of the connection between galaxies and their host dark matter haloes, which is important both for galaxy evolution and...
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PublicationDark halo structure in the Carina dwarf spheroidal galaxy: joint analysis of multiple stellar components
Photometric and spectroscopic observations of the Carina dSph revealed that this galaxy contains two dominant stellar populations of different age and...