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Table 5

Balmer line ratios for the FORS1 and UVES data.

Line FORS 1a,b UVESc UVESd UVESe UVESf UVESg Case Bh

Hα 3.580 4.310 3.650 3.100 3.250 3.777 2.800
Hβ 1.000 1.000 1.000 1.000 1.000 1.000 1.000
Hγ 0.462 0.153 0.219 0.221 0.196 0.402 0.466
Hδ 0.316 0.100 0.073 N/A 0.088 0.159 0.256
Hε 0.174 N/A N/A N/a N/A N/A 0.158
Hζ 0.145 N/A N/A N/A N/A N/A 0.105
Hη 0.079 N/A N/A N/A N/A N/A 0.073

Notes. 

(a)

All data are corrected for extinction using E(B − V) = 0.16 mag and Rv = 3.1.

(b)

Southern outer ring.

(c)

Northern outer ring (2002).

(d)

Southern outer ring (2002).

(e)

Northern outer ring (2009).

(f)

Southern outer ring (2009).

(g)

South part of the inner ring (2002).

(h)

For T = 104 K and Ne = 104 cm-3.

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