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JWST’s PEARLS: A Clumpy Ring Galaxy at z = 4.0148

  • Authors: David Vizgan, Ming-Yang Zhuang, Ian Smail, Rogier A. Windhorst, Gibson B. Bowling, Cheng Cheng, Seth H. Cohen, Christopher J. Conselice, Jose M. Diego, Brenda L. Frye, Norman A. Grogin, Rolf A. Jansen, Patrick S. Kamieneski, Anton M. Koekemoer, Rafael Ortiz III, Massimo Ricotti, Bangzheng Sun, Hayley Williams, S. P. Willner, Haojing Yan, Aadya Agrawal, Manuel Solimano, Zachary Stone, Joaquin D. Vieira, Chentao Yang

David Vizgan et al 2026 The Astrophysical Journal 1004 .

  • Provider: AAS Journals

Caption: Figure 1.

Left: 4 arcmin2 pseudo-RGB image of the MACS0416 cluster, using JWST/NIRCam F115W + F150W as blue, F200W + F277W as green, and F356W + F444W as red. The location of the ring galaxy is indicated in a magenta box. Right: 2″ cutout of the CRG in JWST F150W imaging (top) and 2″ rescaled RGB cutout of the CRG (bottom), using the F150W, F200W, and F356W filters (corresponding to rest-frame wavelengths of 0.30, 0.40, and 0.71 μm, respectively, at z = 4.0148). In the top panel, we show the ∼3σ ALMA detection from the ALCS survey (S. Fujimoto et al. 2024) as a red contour. The JWST imaging of the CRG clearly reveals a ring morphology; we have scaled the channels of the RGB cutout to emphasize the clumpy blue ring surrounding the red center of the system.

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