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Table 3

Summary of narrow emission features superimposed on the ERE and compared to known DIBs.

Band position Closest detectiona Furthest detectiona Profileb Widthc Δ FWHM bandshifts Intensity DIB positiond FWHM d
 (Å)  [′′] [′′] 7–14 ′′ 7–14 ′′ [%]  [Å]   [Å] 

5651 6 (+) 14 (+) as n stable blueshift 3.4 5652.22 1.3
5767 6 (+) 14 (+) rd n narrowing blueshift 2.3 5766.98 4.50
5800 3 (+) 20 (+) rd n narrowing blueshift 2.2 5797.20 0.91
5826 3 (+) 20 (+) s b narrowing blueshift 1.7 5818.81 0.65
5852 3 (+) 20 (+) rd n narrowing blueshift 1.7 5849.88 0.93
5881 6 (+) 20 (?) s n narrowing blueshift 1.7
NaI D2 central star 20 (+) s n not resolved stable not resolved
NaI D1 central star 20 (+) s n not resolved stable not resolved
5913 6 (+) 20 (?) broad wings broad wings stable blueshift 1.9 5910.61 0.73
6108 6 (+) 14 (+) s b stable blueshift 1.5 6108.19 0.6
6162 6 (+) 20 (?) s n stable blueshift 3.0 6159.80 1.17
6220 7 (+) 20 (?) s n stable blueshift 7.6 6221.02 0.88
6379 7 (+) 20 (+) broad wings broad wings narrowing blueshift 3.6 6376.21 0.94
6399 7 (+) 20 (+) s n narrowing blueshift 2.2 6396.88 1.03
6553 7 (+) 20 (+) s n broadening blueshift 7.2 6553.95 0.57
Hα central star 20 (+) s n stable stable 1.2
6615 7 (+) 20 (+) rd n narrowing blueshift 3.7 6613.70 1.08

Notes. 

(a)

(+) indicates unambiguous detections, (?) indicates likely detections.

(b)

s = symmetric, as = asymmetric, rd = red degraded profile showing a steep blue edge.

(c)

Column 5 gives an indication whether a band is n = narrow or b = broad.

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