Host for SPAM Photometric Catalog from awarded JWST Cycle 4 GO Proposal 8559 COMING 2025/2026
We propose SPAM (Star-formation from Photometry through the Addition of Medium-bands), a NIRCam imaging program to add ten new filters - nine medium band (MB) filters and one wide band (WB) filter (F070W, F140M, F162M F182M, F210M, F300M, F335M, F360M, F430M, and F480M) - to the CEERS Early-Release Science (ERS #1345) legacy dataset. SPAM is an efficient medium program which will have a large impact as it can simultaneously 1) measure the extent and occupation of two overdensities that may be powering the earliest-known reionized bubbles at z=7.7 and 8.7 by tracing strong [OIII] emission improving the photometric-redshift precision by 5-10X over CEERS alone, 2) provide necessary filters to break photometric redshift degeneracies and reliably map galaxy evolution at z>2, and 3) constrain star-formation histories of massive galaxies at z>4 by observing five short-wavelength MBs bracketing the Balmer break. Here, we propose 62.9 hours of non-proprietary NIRCam imaging adding to the public CEERS legacy data and enabling an even broader range of science for the entire community.
Logo by Julie Wakefiled, UConn Design Center