Other red dots: A possible GLIMPSE of normal AGB stars at Cosmic Noon through extreme lensing

Other red dots: A possible GLIMPSE of normal AGB stars at Cosmic Noon through extreme lensing
Lukas J. Furtak (University of Texas at Austin), Adi Zitrin (Ben-Gurion-University of the Negev), Erik Zackrisson (Uppsala University), Vasily Kokorev (University of Texas at Austin), Anthony J. Taylor (University of Texas at Austin), Joseph F. V. Allingham (Ben-Gurion-University of the Negev), John Chisholm (University of Texas at Austin), Jose M. Diego (Instituto de F’Isica de Cantabria), Hakim Atek (Institut d’Astrophysique de Paris), Kristen B. W. McQuinn (Space Telescope Science Institute, Rutgers University), Ryan Endsley (University of Texas at Austin), Richard Pan (Tufts University), Gabriel Brammer (Cosmic Dawn Center), Qinyue Fei (University of Toronto), Seiji Fujimoto (University of Toronto), Tiger Y. -Y. Hsiao (University of Texas at Austin), Patrick L. Kelly (University of Minnesota), Damien Korber (University of Geneva), Ashish K. Meena (Indian Institute of Science), Rohan P. Naidu (Massachusetts Institute of Technology), Alberto Saldana-Lopez (Stockholm University)
arXiv:2604.18696v1 Announce Type: new
Abstract: We report the discovery of four extremely faint ($m_{mathrm{F444W}}gtrsim29$) red point sources in recent ultra-deep JWST/NIRCam images of the strong lensing galaxy cluster Abell S1063. All four sources sit in lensed arcs, on the symmetry points very close to the critical curves for their host-galaxies’ redshifts ($zsim1-4$). Remarkably, these point sources appear in most arcs that are sufficiently faint close to the critical curve’s position ($arXiv:2604.18696v1 Announce Type: new
Abstract: We report the discovery of four extremely faint ($m_{mathrm{F444W}}gtrsim29$) red point sources in recent ultra-deep JWST/NIRCam images of the strong lensing galaxy cluster Abell S1063. All four sources sit in lensed arcs, on the symmetry points very close to the critical curves for their host-galaxies’ redshifts ($zsim1-4$). Remarkably, these point sources appear in most arcs that are sufficiently faint close to the critical curve’s position ($