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A Two-Component Probability Distribution Function Describes the Mid-IR Emission from the Disks of Star-forming Galaxies

  • Authors: Debosmita Pathak, Adam K. Leroy, Todd A. Thompson, Laura A. Lopez, Francesco Belfiore, Médéric Boquien, Daniel A. Dale, Simon C. O. Glover, Ralf S. Klessen, Eric W. Koch, Erik Rosolowsky, Karin M. Sandstrom, Eva Schinnerer, Rowan Smith, Jiayi Sun, Jessica Sutter, Thomas G. Williams, Frank Bigiel, Yixian Cao, Jérémy Chastenet, Mélanie Chevance, Ryan Chown, Eric Emsellem, Christopher M. Faesi, Kirsten L. Larson, Janice C. Lee, Sharon Meidt, Eve C. Ostriker, Lise Ramambason, Sumit K. Sarbadhicary, David A. Thilker

Debosmita Pathak et al 2024 The Astronomical Journal 167 .

  • Provider: AAS Journals

Caption: Figure 8.

Summary of the galactic disk PDF parameters at each wavelength, including the H II region power-law index (m) in the left panel and the diffuse component lognormal mean (μ) and variance (σ) in the middle and right panels, respectively, as included in Table 2. The PDFs at 21 μm show significantly more pronounced power law components, while the mean intensity of the diffuse lognormal component is systematically higher in PAH-tracing 7.7 and 11.3 μm. The lognormal PDF widths remain generally consistent across the four filters.

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