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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2504.21720 |
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| _version_ | 1866918005448900608 |
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| author | Rowan-Robinson, Michael |
| author_facet | Rowan-Robinson, Michael |
| contents | In Paper I (Rowan-Robinson 2024), models derived in 2009 to fit mid-infrared (8-24 micron) source counts from the IRAS, ISO and Spitzer missions, were found to provide an excellent fit to deep counts at 7.7-21 mu with JWST, demonstrating that the evolution of dusty star-forming galaxies is well understood. Here the treatment of optical spectral energy distributions (SEDs) is improved and the counts are extended to 5.6 mu and optical wavelengths. The models proved a good fit to the latest, deeper, JWST counts. The models are also extended to radio and X-ray wavelengths. Predicted redshift distributions are given for a range of wavelengths and flux-densities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_21720 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Modelling JWST mid-infrared counts II: Extension to 5.6 μm, optical, radio and X-rays Rowan-Robinson, Michael Astrophysics of Galaxies In Paper I (Rowan-Robinson 2024), models derived in 2009 to fit mid-infrared (8-24 micron) source counts from the IRAS, ISO and Spitzer missions, were found to provide an excellent fit to deep counts at 7.7-21 mu with JWST, demonstrating that the evolution of dusty star-forming galaxies is well understood. Here the treatment of optical spectral energy distributions (SEDs) is improved and the counts are extended to 5.6 mu and optical wavelengths. The models proved a good fit to the latest, deeper, JWST counts. The models are also extended to radio and X-ray wavelengths. Predicted redshift distributions are given for a range of wavelengths and flux-densities. |
| title | Modelling JWST mid-infrared counts II: Extension to 5.6 μm, optical, radio and X-rays |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2504.21720 |