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Table 1

Observed and stacked RRLs.

RRL ν0 (MHz) Stacked (ν) (a)
H115α 4268.14 RRL 4.4 GHz
H114α 4380.95
H113α 4497.78
H112α 4618.79

H100α 6478.76 RRL 6.8 GHz
H99α 6676.08
H98α 6881.49
H97α 7095.41

H92α 8309.38 RRL 8.9 GHz
H91α 8584.82
H90α 8872.57
H89α 9173.32
H88α 9487.82

H87α 9816.86 RRL 10.5 GHz
H86α 10 161.30
H85α 10 522.04
H84α 10 900.06
H83α 11 296.41

Notes. (a) The frequencies of the stacked RRLs are labels corresponding to the average frequency of the stacked lines. These values do not correspond to actual transition frequencies, and are only used in the excitation analysis of Sect. 4.2.

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