GLIMPSE-D

GLIMPSE-D is a JWST DDT program (#9223) conducting deep G395M spectroscopy of the best-studied lensing cluster, Abell S1063. This field also received the deepest NIRCam imaging exposures in the Cycle 2 large JWST program GLIMPSE (#3293). Led by Seiji Fujimoto (U. Toronto) and Rohan Naidu (MIT), GLIMPSE-D delivers unprecedented medium-grating spectra for hundreds of high-redshift galaxies, maximally leveraging the deepest imaging data together with the strong lensing effect.

The panels above show, from left to right: the RGB color image from GLIMPSE NIRCam data, the NIRSpec MSA footprints of GLIMPSE-D, and a team meeting held in Boston. Many active young researchers are leading the analysis of these data, and a growing list of papers has been published or submitted (see below).

Published Papers

Selected papers from JWST PID 9223 (GLIMPSE-D).

• 8. Korber, D., Marques-Chaves, R., Schaerer, D., Brammer, G., et al. “GLIMPSED: Direct evidence for a fast AGN-driven outflow from a z=6.64 Little Red Dot host galaxy,” arXiv:2604.08687 (2026). [ADS]
• 7. Asada, Y., Fujimoto, S., Chisholm, J., Naidu, R. P., et al. “GLIMPSE-DDT spectroscopic properties of faint-end galaxies at z~6,” arXiv:2601.20045 (2026). [ADS]
• 6. Korber, D., Schaerer, D., Marques-Chaves, R., Adamo, A., et al. “GLIMPSE-D: Metallicity Decline in Faint Galaxies,” arXiv:2601.19989 (2026). [ADS]
• 5. Fujimoto, S., Asada, Y., Naidu, R. P., Chisholm, J., et al. “GLIMPSE-D: An Exotic Balmer-Jump Object at z=6.20? Revisiting Photometric Selection and the Cosmic Abundance of Pop III Galaxies,” arXiv:2512.11790 (2025). [ADS]
• 4. Berg, D. A., Naidu, R. P., Chisholm, J., Atek, H., et al. “A Fleeting GLIMPSE of N/O Enrichment at Cosmic Dawn: Evidence for Wolf-Rayet N Stars in a z=6.1 Galaxy,” arXiv:2511.13591 (2025). [ADS]
• 3. Kokorev, V., Chisholm, J., Naidu, R. P., Fujimoto, S., et al. “The Deepest GLIMPSE of a Dense Gas Cocoon Enshrouding a Little Red Dot,” arXiv:2511.07515 (2025). [ADS]
• 2. Fei, Q., Fujimoto, S., Naidu, R. P., Chisholm, J., et al. “A GLIMPSE of Intermediate Mass Black Holes in the Epoch of Reionization: Witnessing the Descendants of Direct Collapse?,” arXiv:2509.20452 (2025). [ADS]
• 1. Fujimoto, S., Naidu, R. P., Chisholm, J., Atek, H., et al. “GLIMPSE: An Ultrafaint ~10⁵ M_☉ Pop III Galaxy Candidate and First Constraints on the Pop III UV Luminosity Function at z ~ 6–7,” ApJ, 989, 46 (2025). [ADS]