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Subaru Seminars are
usually held in Room 104 of the Hilo Base Facility, adjacent
to the main lobby. Everyone is welcome to attend. If you would like to
give a seminar, please contact Subaru seminar organizers
(Rusu Cristian Eduard, Tae-Soo Pyo, Nagayoshi Ohashi)
by email : sseminar_at_subaru.naoj.org (please change"_at" to @).
March 19, Tuesday, 11am in 104A
The extragalactic universe according to JWST
Christina Williams (University of Arizona)
The James Webb Space Telescope (JWST) will be the premier infrared astronomical facility after
its launch in 2021, and its extragalactic observations will revolutionize our understanding of
galaxy evolution by breaking the redshift and sensitivity barriers of existing facilities. I will
introduce the JWST Advanced Deep Extragalactic Survey (JADES), a joint program of the
NIRCam and NIRSpec GTO teams that will be observed in JWST Cycle 1. The design of
JADES relied heavily on mock catalogs that we produced using a novel phenomenological
model for the evolution of galaxy properties across cosmic time. I will present our model
designed for mock JWST observations, and show its science predictions out to z~15 for the
JADES survey, including the rest-frame UV galaxy counts beyond the current redshift frontier
(z>10), the emergence of the first quenched galaxies at z>4, and constraints on the ionization
properties and ISM of early galaxies at 4 < z < 9. The JWST mock data products are publicly
available to facilitate GO Cycle 1 proposal planning, and will serve as a powerful future JWST
data analysis tool after launch.