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ULTIMATE Deblending. I. A 50-band Ultraviolet to Mid-infrared Photometric Catalog Combining Space- and Ground-based Data in the JWST/PRIMER Survey

  • Authors: Hanwen Sun, Tao Wang, Ke Xu, David Elbaz, Emiliano Merlin, Cheng Cheng, Emanuele Daddi, Shuowen Jin, Wei-hao Wang, Longyue Chen, Adriano Fontana, Zhen-Kai Gao, Jiasheng Huang, Benjamin Magnelli, Valentina Sangalli, Yijun Wang, Tiancheng Yang, Yuheng Zhang, Luwenjia Zhou

Hanwen Sun et al 2026 The Astrophysical Journal Supplement Series 285 .

  • Provider: AAS Journals

Caption: Figure 12.

Validation of photometric redshifts. Upper left: comparison between photometric redshifts and spectroscopic redshifts in our final catalog with ground-based data. Upper right: the same comparison when we only use the high-resolution data from HST and JWST. Lower left: photometric and spectroscopic redshift comparison for galaxies that have different photometric redshifts (﹩\left|{z}_{\mathrm{phot},{\rm{w}}/\,\mathrm{GD}}-{z}_{\mathrm{phot},{\rm{w}}/{\rm{o}}\,\,\mathrm{GD}}\right|\gt 0.5﹩), where the blue and red points represent the results with and without ground-based data, respectively. Lower right: the ratio of galaxies with different photometric redshifts (﹩\left|{z}_{\mathrm{phot},{\rm{w}}/\,\mathrm{GD}}-{z}_{\mathrm{phot},{\rm{w}}/{\rm{o}}\,\,\mathrm{GD}}\right|\gt 0.5﹩) as a function of redshift. The blue line and orange line shows the ratio of small galaxies (﹩9\lt \mathrm{log}({M}_{* }/{M}_{\odot })\lt 10﹩) and massive galaxies (﹩\mathrm{log}({M}_{* }/{M}_{\odot })\gt 10﹩), respectively. The solid and dashed lines show the ratios in the entire catalog and the region covered by the high-resolution HST data from the CANDELS survey, respectively.

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