The JWST-SUSPENSE program
Spectroscopic Ultradeep Survey Probing Extragalactic Near-infrared Stellar Emission
Program overview
The SUSPENSE program is a 16 hour Cycle 1 JWST medium resolution spectroscopic program conducted in January 2024 with a single NIRSpec/MSA pointing. The aim of the program is to study the (resolved) chemical, stellar, and kinematic properties of massive quiescent galaxies at cosmic noon. The SUSPENSE program is executed in the area covered by the UltraVISTA, COSMOS, and COSMOS-DASH surveys, and the sample consists of 20 quiescent galaxies at z = 1—3, when the universe was 2 to 5 billion years old. The spectra of SUSPENSE are of unprecedented depth, and show numerous Balmer and metal absorption features for all quiescent galaxies in the sample.
Overview of the NIRSpec rest-frame spectra for the quiescent galaxies in the SUSPENSE survey. The dashed lines mark prominent emission, absorption, and Balmer features in the spectra.
Acknowledgements
This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program JWST-GO-2110. Support for program JWST-GO-2110 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127. We also acknowledge funding from the Dutch Research Council (NWO) through the award of the Vici grant VI.C.222.047.