Cosmology Seminar: Enikö Regös
Enikö Regös is from Konkoly Observatory, Hungarian Academy of Sciences
A First Transients Survey with JWST: FLARE
JWST will answer empirically how the Universe made its first stars. Instead of classical stare mode and still photography of objects of unknown spectra, we quest the epoch of reionization in the time domain and target what happened to these first stars. We will observe the most luminous events: supernovae and accretion on to black holes from primordial gas. These transients provide direct constraints on star formation rates and the truly initial mass function. This will explore the physics of these events at ultra-low metallicity. These very rare events at the dawn of cosmic structure formation can be reached by JWST at 27 mag AB in 2 micron and 4.4 micron over a field of 0.1 square degree visited multiple times each year. This survey may detect massive Pop III SNe at redshifts up to 10, pinpointing the redshift of first stars, also large scale structure as the trademark of reionization; all key scientific goals of JWST.