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Table 3.

Emission lines in the RGS spectra of NGC 985.

Line (a) λ0(b) λ(c) Δλ(d) Flux (e) σ(f)
Obs. 2003
O VII, aw 21.6015 21.3 ± 0.1 0.2 ± 0.1 28.0 ± 9.0 3.1
O VII, af 22.0974 22.0 ± 0.1 0.4 ± 0.2 41.0 ± 10.0 4.1
Obs. 2013
Mg XII, Lα 8.421 8.41 ± 0.04 < 0.2 15.0 ± 5.0 3.0
Mg XI, af 9.3136 9.25 ± 0.04 0.2 ± 0.1 15.0 ± 5.0 3.0
Ne IX, af 13.6984 13.69 ± 0.02 < 0.1 6.4 ± 1.5 4.3
O VIII, Lβ 16.0059 16.1 ± 0.1 0.3 ± 0.1 8.4 ± 1.7 4.9
O VII, bf 18.7307 18.08 ± 0.02 < 0.2 6.2 ± 1.9 3.3
O VIII, Lα 18.9689 18.96 ± 0.02 < 0.2 12.0 ± 3.0 4.0
O VII, aw 21.6015 21.60 ± 0.04 0.3 ± 0.1 19.0 ± 3.0 6.3
O VII, ai 21.802 21.87 ± 0.03 < 0.1 6.2 ± 3.5 1.8
O VII, af 22.0974 22.09 ± 0.01 < 0.1 21.0 ± 4.0 5.3
N VII, Lα 24.781 24.7 ± 0.1 0.2 ± 0.1 4.1 ± 2.6 1.6
Obs. 2015a
O VII, ai 21.802 21.83 ± 0.03 < 0.1 11.0 ± 5.0 2.2
O VII, af 22.0974 22.12 ± 0.02 < 0.1 21.0 ± 5.0 4.2
C VI, Lα 33.735 33.6 ± 0.1 < 0.4 4.7 ± 2.9 1.6
Obs. 2015b
O VII, aw 21.6015 21.57 ± 0.05 < 0.4 23.0 ± 12.0 1.9
O VII, af 22.0974 22.10 ± 0.02 < 0.2 30.0 ± 11.0 2.7
C VI, Lα 33.735 33.4 ± 0.1 0.3 ± 0.1 35 ± 8.0 4.4

Notes.

(a)

Emission line transitions (L: H-like, a: Heα-like, b: Heβ-like, w: resonance, i: intercombination, f: forbidden).

(b)

Laboratory wavelength, in Å.

(c)

Rest-frame wavelength, in Å.

(d)

Line width, in Å.

(e)

Line flux, in units of 10−15 erg cm−2 s−1.

(f)

Significance of the detection.

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