MPIfR/AIfA Main Colloquium, Speaker: Prof. Dr. Leon Koopmans, Groningen University

/MPIfR/AIfA Main Colloquium, Speaker: Prof. Dr. Leon Koopmans, Groningen University

MPIfR/AIfA Main Colloquium, Speaker: Prof. Dr. Leon Koopmans, Groningen University


Event Details


Max Planck Institute for Radio Astronomy/Argelander Institute for Astronomy Main Colloquium

Titel: Observing the Epoch of Reionisation and Cosmic Dawn with LOFAR and NenuFAR, and the upcoming SKA

Speaker: Prof. Dr. Leon Koopmans, Groningen University

Observations of the first luminous cosmic structures, with ground and space-based optical and infrared telescopes, are slowly lifting the veil on the complex physical processes that governed the Epoch of Reionization and Cosmic Dawn. These observations, most recently with JWST reaching redshift well into the Cosmic Dawn, however, are only the tip of the iceberg: islands in a sea of neutral hydrogen. I will review the current status of the LOFAR Epoch of Reionization Key-Science Program, presenting our latest improved power-spectrum limits on the 21-cm signal of neutral hydrogen, the constraints it sets on the high-redshift IGM, and present several breakthroughs in our understanding of the data itself, which will be crucial for the future SKA. I will also show the latest results from the NenuFAR Cosmic Dawn Key-Science Program, which aims to measure the 21-cm signal during the Cosmic Dawn. I will place these results in context of SKA and our plans to push towards 21-cm cosmology of the Dark Ages using space-based receivers, such as ALO, currently a pre-phase-A concept for a radio telescope to be placed on the lunar farside by ESA’s Argonaut landers.

2024-02-09T16:38:33+00:00