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 PIDs 9223 (GLIMPSE-D) and 3293 (GLIMPSE).

• 14. 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]
• 13. Korber, D., Chemerynska, I., Furtak, L. J., Atek, H., et al. “A GLIMPSE into the very faint end of the Hβ+[O III] luminosity function at z ~ 7–9 behind Abell S1063,” A&A, 708, A43 (2026). [ADS]
• 12. Chemerynska, I., Atek, H., Furtak, L. J., Chisholm, J., et al. “The first GLIMPSE of the faint galaxy population at Cosmic Dawn with JWST: The evolution of the UV luminosity function across z ~ 9–15,” MNRAS, 546, 2267 (2026). [ADS]
• 11. 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]
• 10. Korber, D., Schaerer, D., Marques-Chaves, R., Adamo, A., et al. “GLIMPSE-D: Metallicity Decline in Faint Galaxies,” arXiv:2601.19989 (2026). [ADS]
• 9. Claeyssens, A., Adamo, A., Kokorev, V., Furtak, L., et al. “A first GLIMPSE into star cluster populations across cosmic time,” arXiv:2601.16281 (2026). [ADS]
• 8. Jecmen, M. C., Chisholm, J., Atek, H., Kokorev, V., et al. “A GLIMPSE into the UV Continuum Slopes of the Faintest Galaxies in the Epoch of Reionization,” arXiv:2601.19995 (2026). [ADS]
• 7. 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]
• 6. 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]
• 5. Atek, H., Chisholm, J., Kokorev, V., Endsley, R., et al. “JWST's GLIMPSE: an overview of the deepest probe of early galaxy formation and cosmic reionization,” arXiv:2511.07542 (2025). [ADS]
• 4. 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]
• 3. 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]
• 2. 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]
• 1. Kokorev, V., Atek, H., Chisholm, J., Endsley, R., et al. “A Glimpse of the New Redshift Frontier through AS1063,” ApJL, 983, L22 (2025). [ADS]