PHANGS-JWST First Results: Mid-infrared Emission Traces Both Gas Column Density and Heating at 100 pc Scales

0583795 - ASÚ 2024 RIV US eng J - Journal Article
Leroy, A. K. … Total 51 authors
PHANGS-JWST First Results: Mid-infrared Emission Traces Both Gas Column Density and Heating at 100 pc Scales.
Astrophysical Journal Letters. Roč. 944, č. 2 (2023), č. článku L9. ISSN 2041-8205. E-ISSN 2041-8213
Research Infrastructure: EU-ARC.CZ III - 90259
Keywords : disk galaxies * galaxy physics * dust continuum emission
OECD category: Astronomy (including astrophysics,space science)
Impact factor: 7.9, year: 2022
Method of publishing: Open access
https://doi.org/10.3847/2041-8213/acaf85

We compare mid-infrared (mid-IR), extinction-corrected Hα, and CO (2-1) emission at 70-160 pc resolution in the first four PHANGS-JWST targets. We report correlation strengths, intensity ratios, and power-law fits relating emission in JWST's F770W, F1000W, F1130W, and F2100W bands to CO and Hα. At these scales, CO and Hα each correlate strongly with mid-IR emission, and these correlations are each stronger than the one relating CO to Hα emission.
Permanent Link: https://hdl.handle.net/11104/0351792