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The Low-Frequency Array (LOFAR) is a pan-European radio telescope with immense data-collection and processing capabilities, making it an unprecedentedly powerful instrument for conducting the deepest and widest radio surveys at the lowest frequencies accessible from the ground. The Euclid space telescope is currently mapping a large fraction of the optical and near-IR sky at high angular resolution, providing a stunning view of the entire extragalactic galaxy population.

In this talk, we present these two survey experiments and discuss very recent results related to the formation and evolution of very massive black holes at the centres of galaxies, and how the outflows from these black holes impact the nature of galaxies and their surroundings.

BIO

Prof.Huub Röttgering,Director of Leiden Observatory.Röttgering's main interest is the origin and evolution of active and star-forming galaxies, clusters of galaxies and large-scale structures in the Universe.He carried out numerous projects based on radio, mm-submm, optical, IR and X-ray observations taken with ground- and space-based observing facilities. His second interest is the development of astronomical observing facilities.Rottgering has a considerable interest indeveloping interferometric techniques. As PI of the project the Development and Commissioning of LOFAR for astronomy (DCLA) and as first chair of LOFAR's Astronomy Research Committee (ARC), Rottgering has been playing a leading role in the development of LOFAR. He is also involved in the development of ground and space based optical and infrared interferometers (MIDI on the VLT interferometer, and ESA's Darwin and NASA's TPF space interferometers).

Host: Zheng Cai