| Title: |
JWST MIRI color classification of mid-infrared selected galaxies |
| Authors: |
Kilerci, E; Goto, T; Malkan, MA; Kim, SJ; Ling, C-T; Wu, CK-W; Hashimoto, T; Ho, SC-C; Chen, AY-A; Göğüş, E |
| Source: |
Astronomy & Astrophysics, vol 704 |
| Publisher Information: |
eScholarship, University of California |
| Publication Year: |
2025 |
| Collection: |
University of California: eScholarship |
| Subject Terms: |
5109 Space Sciences (for-2020); 51 Physical Sciences (for-2020); galaxies: active; galaxies: general; galaxies: high-redshift; galaxies: star formation; infrared: galaxies; 0201 Astronomical and Space Sciences (for); Astronomy & Astrophysics (science-metrix); 5101 Astronomical sciences (for-2020); 5107 Particle and high energy physics (for-2020) |
| Description: |
Context. We investigated the James Webb Space Telescope photometric color classification of mid-infrared (MIR) selected galaxies at high redshifts, toward cosmic noon. Aims. 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. Methods. 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 μm 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 ∼ 2. We applied the photometric MIR colors to the largest (∼34 arcmin 2 ) 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 ∼ 10 11.9 L ⊙ at 0.9 ≤ z < 1.57. The majority of them are consistent with the z ∼ 1 main sequence. We also identified the first examples of z ∼ 1 galaxies with deep silicate absorption. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
unknown |
| Relation: |
qt46v3s9mx; https://escholarship.org/uc/item/46v3s9mx; https://escholarship.org/content/qt46v3s9mx/qt46v3s9mx.pdf |
| DOI: |
10.1051/0004-6361/202554884 |
| Availability: |
https://escholarship.org/uc/item/46v3s9mx; https://escholarship.org/content/qt46v3s9mx/qt46v3s9mx.pdf; https://doi.org/10.1051/0004-6361/202554884 |
| Rights: |
CC-BY |
| Accession Number: |
edsbas.F85BA0F |
| Database: |
BASE |