PHANGS-JWST: The largest extragalactic molecular cloud catalog traced by polycyclic aromatic hydrocarbon emission

Open Access

Table 5.

Pearson χ² and fractional difference statistical tests for the extreme cloud subsamples.

Env.	Δf_high	$Δ f_{high}^{e}$ $\Delta f^{e}_{high}$	Δf_low	$Δ f_{low}^{e}$ $\Delta f^{e}_{low}$
(1)	(2) [%]	(3) [%]	(4) [%]	(5) [%]
Bar	−3.84	−4.66	2.87	36.34
Spiral Arm	11.14	12.55	−6.54	−14.05
Interarm	−11.49	−12.21	5.34	−9.01
Disk	4.18	4.32	−1.66	−13.28

Notes. (1) The galactic environment. (2) The fractional difference between the environmental counts in the high Σ_mol regime (Σ_mol ≥ 100 M_⊙ pc⁻²) and the full sample of clouds (Δf_high). (3) The fractional difference between the environmental counts in the 1000 highest Σ_mol subsample and the full sample of clouds ( $Δ f_{high}^{e}$ $\Delta f^{e}_{high}$ ). (4) The fractional difference between the environmental counts in the low Σ_mol regime (Σ_mol ≤ 10 M_⊙ pc⁻²) and the full sample of clouds (Δf_low). (5) The fractional difference between the environmental counts in the 1000 lowest Σ_mol subsample and the full sample of clouds ( $Δ f_{low}^{e}$ $\Delta f^{e}_{low}$ ).

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