New detections of (sub)millimeter hydrogen radio recombination lines towards high-mass star-forming clumps

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Table 5

Ratios of the Hnα linewidth to the H42α linewidth.

	Linewidth ratio

Submm-RRL	Median (σ)	Maximum	Minimum
transition	(km s⁻¹)	(km s⁻¹)	(km s⁻¹)
H25α/H42α	1.0 (0.08)	1.2	1.0
H26α/H42α	1.0 (0.09)	1.1	0.8
H27α/H42α	0.9 (0.28)	1.5	0.8
H28α/H42α	1.0 (0.13)	1.5	0.8
H30α/H42α	1.0 (0.05)	1.1	0.9
H39α/H42α	1.0 (0.07)	1.2	0.9
H40α/H42α	1.0 (0.09)	1.3	0.9
H41α/H42α	1.0 (0.07)	1.2	0.8

Notes. The Hnα means the staked RRL of the detected submm-RRL transitions for an individual source. It only contains sources with peak fluxes greater than 8σ. In the case of the H29α, there are no sources that have both H29α and H42α detections ≥ 8σ.

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