JWST MIRI color classification of mid-infrared selected galaxies: MIRI color classification toward cosmic noon
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arXiv
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| Auteurs principaux: | , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866912773530714112 |
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| author | Kilerci, Ece Goto, Tomotsugu Malkan, Matthew A. Kim, Seong Jin Ling, Chih-Teng Wu, Cossas C. -K Hashimoto, Tetsuya Ho, Simon C. -C. Chen, Amos Y. -A. Gogus, Ersin |
| author_facet | Kilerci, Ece Goto, Tomotsugu Malkan, Matthew A. Kim, Seong Jin Ling, Chih-Teng Wu, Cossas C. -K Hashimoto, Tetsuya Ho, Simon C. -C. Chen, Amos Y. -A. Gogus, Ersin |
| contents | We investigated the James Webb Space Telescope photometric color classification of mid-infrared (MIR) selected galaxies at high redshifts, toward cosmic noon. The aim of the present work is to obtain a z-dependent mid-infrared (MIR) photometric galaxy classification tool based on broad spectral emission and absorption lines using the JWST Mid-Infrared Instrument (MIRI) and its broadband filters. We used the largest Spitzer MIR spectral database to obtain synthetic photometry in the JWST/MIRI filters. We formed MIRI filter combinations to trace the strong polycyclic aromatic hydrocarbon (PAH) emission features and the 9.7 micron silicate feature in seven redshift windows from z = 0.25-2.10. Results. We present z-dependent MIRI color-color plots that separate active galactic nuclei (AGN), star-forming galaxies (SFGs), and silicate absorption-dominated galaxies up to z$\sim$2. We applied the photometric MIR colors to the largest ($\sim$34 arcmin square) MIRI survey called the Systematic Mid-infrared Instrument Legacy Extragalactic Survey (SMILES), to identify AGN, SFGs, and Si-absorption dominated galaxies out to substantial redshifts. Our JWST/MIRI SFGs sample includes galaxies with total IR luminosities of $10^{9.2} \sim 10^{11.9} L_{\odot}$ at 0.9 $\leq$z < 1.57. The majority of them are consistent with the z$\sim$1 main sequence. We also identified the first examples of z$\sim$1 galaxies with deep silicate absorption. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_16589 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | JWST MIRI color classification of mid-infrared selected galaxies: MIRI color classification toward cosmic noon Kilerci, Ece Goto, Tomotsugu Malkan, Matthew A. Kim, Seong Jin Ling, Chih-Teng Wu, Cossas C. -K Hashimoto, Tetsuya Ho, Simon C. -C. Chen, Amos Y. -A. Gogus, Ersin Astrophysics of Galaxies We investigated the James Webb Space Telescope photometric color classification of mid-infrared (MIR) selected galaxies at high redshifts, toward cosmic noon. The aim of the present work is to obtain a z-dependent mid-infrared (MIR) photometric galaxy classification tool based on broad spectral emission and absorption lines using the JWST Mid-Infrared Instrument (MIRI) and its broadband filters. We used the largest Spitzer MIR spectral database to obtain synthetic photometry in the JWST/MIRI filters. We formed MIRI filter combinations to trace the strong polycyclic aromatic hydrocarbon (PAH) emission features and the 9.7 micron silicate feature in seven redshift windows from z = 0.25-2.10. Results. We present z-dependent MIRI color-color plots that separate active galactic nuclei (AGN), star-forming galaxies (SFGs), and silicate absorption-dominated galaxies up to z$\sim$2. We applied the photometric MIR colors to the largest ($\sim$34 arcmin square) MIRI survey called the Systematic Mid-infrared Instrument Legacy Extragalactic Survey (SMILES), to identify AGN, SFGs, and Si-absorption dominated galaxies out to substantial redshifts. Our JWST/MIRI SFGs sample includes galaxies with total IR luminosities of $10^{9.2} \sim 10^{11.9} L_{\odot}$ at 0.9 $\leq$z < 1.57. The majority of them are consistent with the z$\sim$1 main sequence. We also identified the first examples of z$\sim$1 galaxies with deep silicate absorption. |
| title | JWST MIRI color classification of mid-infrared selected galaxies: MIRI color classification toward cosmic noon |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2512.16589 |