SPAM JWST GO 8559

JWST Cycle 4 · GO Proposal 8559

SPAM

Star-formation from Photometry through the Addition of Medium-bands

Team Website for SPAM, an awarded JWST Cycle 4 GO Proposal 8559.

SPAM filters Existing CEERS coverage MINERVA coverage

Hover or tab through a band for its bandwidth. Values from the NIRCam filter tables (JDox, commissioning flight data). Dashed outlines mark bands from MINERVA. SPAM's nine medium-bands and wide-band, F410M from CEERS, and the medium-bands added by MINERVA together cover all NIRCam medium- and wide-bands available for complete coverage in the legacy CEERS footprint.

Left: all SPAM, CEERS and MINERVA filters. Right: legacy CEERS only. Drag the slider to change redshift.

Public Abstract

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.

Public PDF

SPAM Logo by Julie Wakefield, UConn Design Center