Colloq Abstract - La Plante

March 24, 2023

11:00am Mountain

Paul La Plante (UNLV)

Looking Forward to the Past:  Current and Near future 21cm Measurements of Reionization and Cosmic Dawn

 

In recent years, we have started to make observations of the first generation of stars and galaxies, learning more about Cosmic Dawn and Reionization along the way. Radio interferometers like the Hydrogen Epoch of Reionization Array (HERA) are complementing surveys of galaxies from optical telescopes, spectra of high-redshift quasars, and measurements of the cosmic microwave background (CMB) to provide key details about the early universe. Upcoming observations will shed even more light on these early galaxies, and give us a more complete cosmological picture. In this talk, I will discuss recent measurements of the 21cm power spectrum from HERA and how they fit into the broader observational landscape of reionization. Additionally, I will explain how cross-correlation measurements with other instruments, such as the Roman Space Telescope and Simons Observatory, can supplement and extend data taken from HERA, or any single telescope.

 

 

 

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