COOL-LAMPS. IV. A Sample of Bright Strongly Lensed Galaxies at 3 < z < 4

Zhang, Yunchong; Manwadkar, Viraj; Gladders, Michael D.; Khullar, Gourav; Dahle, Håkon; Napier, Kate A.; Mahler, Guillaume; Sharon, Keren; Matthews Acuña, Owen S.; Ashmead, Finian; Cerny, William; Gonzàlez, Juan Remolina; Gozman, Katya; Levine, Benjamin C.; Marohnic, Daniel; Martinez, Michael N.; Merz, Kaiya; Pan, Yue; Sanchez, Jorge A.; Sierra, Isaac; Sisco, Emily E.; Sukay, Ezra; Tavangar, Kiyan; Zaborowski, Erik

Abstract

We report the discovery of five bright, strong gravitationally lensed galaxies at 3 < z < 4: COOL J0101+2055 (z = 3.459), COOL J0104−0757 (z = 3.480), COOL J0145+1018 (z = 3.310), COOL J0516−2208 (z = 3.549), and COOL J1356+0339 (z = 3.753). These galaxies have magnitudes of rAB, zAB < 21.81 mag and are lensed by galaxy clusters at 0.26 < z < 1. This sample nearly doubles the number of known bright lensed galaxies with extended arcs at 3 < z < 4. We characterize the lensed galaxies using ground-based grz/giy imaging and optical spectroscopy. We report model-based magnitudes and derive stellar masses, dust content, and star formation rates via stellar population synthesis modeling. Building lens models based on ground-based imaging, we estimate source magnifications ranging from ∼29 to ∼180. Combining these analyses, we derive demagnified stellar masses in the range ${\mathrm{log}}_{10}({M}_{* }/{M}_{\odot })\sim 9.69-10.75$ and star formation rates in the youngest age bin in the range ${\mathrm{log}}_{10}(\mathrm{SFR}/({M}_{\odot }\,{\mathrm{yr}}^{-1}))\sim 0.39-1.46$, placing the sample galaxies on the massive end of the star-forming main sequence in this redshift interval. In addition, three of the five galaxies have strong Lyα emissions, offering unique opportunities to study Lyα emitters at high redshift in future work.

Citation

Zhang, Y., Manwadkar, V., Gladders, M. D., Khullar, G., Dahle, H., Napier, K. A., …Zaborowski, E. (2023). COOL-LAMPS. IV. A Sample of Bright Strongly Lensed Galaxies at 3 < z < 4. Astrophysical Journal, 950(1), Article 58. https://doi.org/10.3847/1538-4357/acc9be

• Journal Article Type: Article
• Acceptance Date: Mar 31, 2023
• Online Publication Date: Jun 9, 2023
• Publication Date: Jun 10, 2023
• Deposit Date: Oct 31, 2023
• Publicly Available Date: Oct 31, 2023
• Journal: The Astrophysical Journal
• Print ISSN: 0004-637X
• Electronic ISSN: 1538-4357
• Publisher: American Astronomical Society
• Peer Reviewed: Peer Reviewed
• Volume: 950
• Issue: 1
• Article Number: 58
• DOI: https://doi.org/10.3847/1538-4357/acc9be
• Keywords: Space and Planetary Science; Astronomy and Astrophysics
• Public URL: https://durham-repository.worktribe.com/output/1872145