Published November 11, 2025 | Version v1
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PHANGS-JWST: the largest extragalactic molecular cloud catalog traced by polycyclic aromatic hydrocarbon emission / Online material - Appendix C.1

  • 1. EDMO icon University of Bonn
  • 2. EDMO icon Ohio State University
  • 3. ROR icon University of Alberta
  • 4. ROR icon University of California, San Diego
  • 5. ROR icon Cardiff University
  • 6. ROR icon Stockholm University
  • 7. ROR icon University of Cologne
  • 8. Univeristy of Gent
  • 9. ROR icon European Southern Observatory
  • 10. ROR icon Heidelberg University
  • 11. University of Heidelberg
  • 12. Tamkang University
  • 13. ROR icon The Ohio State University
  • 14. University of Western Ontario
  • 15. ROR icon University of St Andrews
  • 16. EDMO icon University of Wyoming
  • 17. ROR icon University of Oxford
  • 18. ROR icon University of Arkansas at Fayetteville
  • 19. ROR icon University of Cape Town
  • 20. ROR icon Ghent University
  • 21. ROR icon Johns Hopkins University
  • 22. ROR icon Université de Toulouse
  • 23. ROR icon National Optical Astronomy Observatory

Description

Top left: The continuum-subtracted images of the galaxy. Top right: The identified PAH clouds using SCIMES. The flagged clouds are in grey, non-flagged in green, and PAH clouds with CO cloud counterparts in red. Middle left: Sigma_mol violin plots per galactic environment for the specific galaxy (transparent), and the full sample (colored). The median values and number of PAH clouds per environment are also represented in the plot. Middle center: log(M_mol )-log(R_eq) scaling relation for the PAH clouds in the galaxy (blue), clouds per galactic environment in the galaxy (see colors in plot), and for the full sample (black). The median values are also represented in the plot per galactic environment. Middle right: The global mass spectra (black), galaxy-specific mass spectra (blue), and per galactic environment in the galaxy. The fit values for the galaxy-specific mass spectra are displayed in the plot. Bottom: The \sigmol\ (left), \Mmol\ (center), and \Reff\ (right) as a function of R_gal. A scatterplot of the PAH clouds, colored by the density of clouds, is also represented in the plots. The running galaxy median (filled blue circles) is plotted for a bin width of 0.1 R_e. The grey-shaded region represents the interquartile range of the medians per galaxy. The error bars on the median are the standard errors (1.253 x sigma/sqrt(N)), where N is the number of clouds contributing to a specific bin. The blue and black dashed lines represent the median property of the galaxy and the full sample, respectively.

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Additional details

Funding

Deutsche Forschungsgemeinschaft
SFB 1601 sub-project B3 500700252

Dates

Accepted
2025-11-07
Published in A&A, Link: https://ui.adsabs.harvard.edu/abs/2026A%26A...706A..40B/abstract

Software

Programming language
Python