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Home All issues Volume 686 (June 2024) A&A, 686 (2024) A99 Full HTML
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Table A.1.

Emission line components properties derived from the 2015 COS spectrum of I Zw 1.

Feature λ0 Flux vcen FWHMb γ(a)
(Å) 10−14 erg cm−2 s−1 km s−1 km s−1
P V 1117.98 0.6 ± 0.1 −2390 ± 40 800 ± 100 1.0
P V 1117.98 6.7 ± 0.2 −630 ± 20 2100 ± 100 0.53 ± 0.05
P V 1128.01 10.3 ± 0.1 −630 ± 20 2370 ± 80 0.50 ± 0.03
C III* 1175.74 3.84 ± 0.08 −500 ± 20 1430 ± 40 0.67 ± 0.04
Si II 1190.42 2.9 ± 0.2 −500 ± 20 1090 ± 50 1.0
Si II 1193.29 0.9 ± 0.1 −250 ± 10 460 ± 50 1.0
Si II 1194.50 0.9 ± 0.1 −250 ± 10 460 ± 50 1.0
Si II 1197.39 0.5 ± 0.2 −250 ± 10 460 ± 50 1.0
unknown 1273.40(b) 4.8 ± 0.9 ⋯ 1300 ± 200 1.0
Si III 1206.50 11 ± 2 −200 ± 100 1050 ± 60 1.0
Lyα 1215.67 32 ± 3 −390 ± 20 680 ± 50 1.0
Lyα 1215.67 76 ± 6 −600 ± 100 2400 ± 200 0.7 ± 0.1
Lyα 1215.67 49 ± 7 −150 ± 20 1700 ± 100 0.27 ± 0.02
Lyα 1215.67 123 ± 8 200 ± 100 9200 ± 400 0.9 ± 0.1
N V 1238.82 9.5 ± 0.9 −1100 ± 20 2300 ± 400 1.0
N V 1242.80 9.5 ± 0.9 −1100 ± 20 2300 ± 400 1.0
N V(c) 1240.80 49 ± 7 −400 ± 40 4200 ± 100 0.31 ± 0.03
S II 1250.58 2.0 ± 0.2 −270 ± 20 1400 ± 300 0.4 ± 0.1
S II 1253.81 2.3 ± 0.4 −260 ± 20 1400 ± 300 0.4 ± 0.1
Si II 1260.42 4.3 ± 0.3 −330 ± 20 940 ± 70 0.9 ± 0.1
SiII 1264.73 4.7 ± 0.3 −300 ± 20 910 ± 60 0.85 ± 0.07
unknown 1372.85(b) 1.6 ± 0.1 ⋯ 930 ± 70 1.0
unknown 1378.25(b) 1.9 ± 0.4 ⋯ 800 ± 100 1.0
O I 1302.17 3.7 ± 0.4 −149 ± 8 500 ± 30 1.0
Si II + O I 1304.86 3.2 ± 0.2 −203 ± 9 400 ± 20 1.0
O I 1306.03 2.3 ± 0.2 −149 ± 8 370 ± 20 1.0
O I 1309.28 2.34 ± 0.08 −190 ± 10 690 ± 30 1.0
C II + C II 1335.12 2.2 ± 0.2 −294 ± 8 620 ± 30 1.0
C II + C II 1335.12 4.6 ± 0.2 −670 ± 20 1330 ± 30 1.0
P III* 1344.33 1.48 ± 0.05 −190 ± 30 910 ± 60 0.60 ± 0.09
Si IV + OIV] 1402.77 7 ± 1 −590 ± 70 2100 ± 300 1.0
Si IV + OIV] 1393.76 9 ± 2 −510 ± 40 2630 ± 60 0.37 ± 0.05
Si IV + OIV] 1402.77 13 ± 2 −600 ± 30 3200 ± 700 0.33 ± 0.09
Si II 1526.71 2.5 ± 0.2 −230 ± 30 1070 ± 60 1.0
Si II* 1533.45 4.5 ± 0.9 −230 ± 40 1070 ± 60 1.0
C IV 1548.19 9.5 ± 0.4 −380 ± 20 900 ± 30 1.0
C IV 1550.77 9.5 ± 0.4 −380 ± 20 900 ± 30 1.0
C IV 1548.19 15.7 ± 0.5 −1180 ± 50 2700 ± 100 0.31 ± 0.06
C IV 1550.77 15.7 ± 0.5 −1180 ± 50 2700 ± 100 0.31 ± 0.06
He II 1640.42 5.6 ± 0.4 −2160 ± 70 1200 ± 100 1.8 ± 0.4
He II 1640.42 0.7 ± 0.2 −300 ± 50 600 ± 100 1.0

Notes.

(a)

The asymmetry parameter γ is defined as FWHMr = γ FWHMb, where FWHMr and FWHMb are the full-width half maximum values for the red and blue wing of the Gaussian line profile.

(b)

Observed wavelength.

(c)

Blended doublet emission component.

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