Criteria . | [WO1] . | [WO2] . | [WO3] . | WRPN . | Classification . |
---|---|---|---|---|---|
(1) . | (2) . | (3) . | (4) . | (5) . | (6) . |
Acker & Neiner (2003) | |||||
|$F_\rm{O{\,\small VI}\ 3822}/F_\text{RB}$| | >1400 | 1000 ± 200 | 250 ± 40 | 822.5 ± 2.6 | [WO2] |
|$F_\rm{C{\,\small IV}\ 4650}/F_\text{RB}$| | 300 ± 100 | 270 ± 60 | 23 ± 2 | 149.3 ± 1.7 | [WO2] |
|$F_\rm{C{\,\small IV}\ 4686}/F_\text{RB}$| | 500 ± 200 | 300 ± 30 | 130 ± 30 | 170.2 ± 1.7 | [WO2–3] |
|$F_\rm{O{\,\small VI}\ 5290}/F_\text{RB}\, ^{\dagger }$| | >80 | 48 ± 2 | 20 ± 5 | 36.3 ± 0.3 | [WO2–3] |
|$F_\rm{C{\,\small IV}\ 5412}/F_\text{RB}$| | 45 ± 15 | 20 ± 4 | 15 ± 4 | 23.5 ± 0.3 | [WO2] |
|$F_\rm{C{\,\small IV}\ 5470}/F_\text{RB}$| | 35 ± 5 | 23 ± 2 | 14 ± 2 | 19.1 ± 0.3 | [WO2] |
|$F_\rm{Ne{\,\small VII}\ 5666}/F_\text{RB}\, ^{\dagger }$| | >25 | 10: | 8 ± 6 | 4.5 ± 0.2 | [WO2–3] |
|$F_\rm{Ne{\,\small VIII}\ 6068}/F_\text{RB}\, ^{\dagger }$| | 20 ± 8 | 6 ± 1 | 2 ± 1 | 4.18 ± 0.2 | [WO2–3] |
|$F_\rm{O{\,\small V}\ 6740}/F_\text{RB}$| | Presence | – | – | 3.7 ± 0.3 | [WO1] |
|$F_\rm{C{\,\small IV}\ 7060}/F_\text{RB}$| | 35 ± 20 | 18 ± 4 | 15 ± 4 | 23.6 ± 0.2 | [WO1–2] |
FWHM of C iv λλ5806[Å] | 33 ± 5 | 32 ± 3 | 37 ± 6 | 37.4 | [WO1–3] |
Crowther et al. (1998) | |||||
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{O{\,\small V}5590})$| | ≥1.1 | 0.6–1.1 | 0.25–0.6 | 1.58 | [WO1] |
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{C{\,\small IV}5806})$| | ≥0.2 | ≥0.2 | −1–0.2 | 0.46 | [WO1–2] |
log|$(EW_\rm{Ne{\,\small VII}5666}/EW_\rm{O{\,\small V}5590})\, ^{\dagger }$| | ≥0.0 | ≤0.0 | <<0.0 | −0.19 | [WO2] |
FWHM of C iv λλ5806 [Å] | 40 ± 10 | 160 ± 20 | 90 ± 30 | 37.4 | [WO1] |
Criteria . | [WO1] . | [WO2] . | [WO3] . | WRPN . | Classification . |
---|---|---|---|---|---|
(1) . | (2) . | (3) . | (4) . | (5) . | (6) . |
Acker & Neiner (2003) | |||||
|$F_\rm{O{\,\small VI}\ 3822}/F_\text{RB}$| | >1400 | 1000 ± 200 | 250 ± 40 | 822.5 ± 2.6 | [WO2] |
|$F_\rm{C{\,\small IV}\ 4650}/F_\text{RB}$| | 300 ± 100 | 270 ± 60 | 23 ± 2 | 149.3 ± 1.7 | [WO2] |
|$F_\rm{C{\,\small IV}\ 4686}/F_\text{RB}$| | 500 ± 200 | 300 ± 30 | 130 ± 30 | 170.2 ± 1.7 | [WO2–3] |
|$F_\rm{O{\,\small VI}\ 5290}/F_\text{RB}\, ^{\dagger }$| | >80 | 48 ± 2 | 20 ± 5 | 36.3 ± 0.3 | [WO2–3] |
|$F_\rm{C{\,\small IV}\ 5412}/F_\text{RB}$| | 45 ± 15 | 20 ± 4 | 15 ± 4 | 23.5 ± 0.3 | [WO2] |
|$F_\rm{C{\,\small IV}\ 5470}/F_\text{RB}$| | 35 ± 5 | 23 ± 2 | 14 ± 2 | 19.1 ± 0.3 | [WO2] |
|$F_\rm{Ne{\,\small VII}\ 5666}/F_\text{RB}\, ^{\dagger }$| | >25 | 10: | 8 ± 6 | 4.5 ± 0.2 | [WO2–3] |
|$F_\rm{Ne{\,\small VIII}\ 6068}/F_\text{RB}\, ^{\dagger }$| | 20 ± 8 | 6 ± 1 | 2 ± 1 | 4.18 ± 0.2 | [WO2–3] |
|$F_\rm{O{\,\small V}\ 6740}/F_\text{RB}$| | Presence | – | – | 3.7 ± 0.3 | [WO1] |
|$F_\rm{C{\,\small IV}\ 7060}/F_\text{RB}$| | 35 ± 20 | 18 ± 4 | 15 ± 4 | 23.6 ± 0.2 | [WO1–2] |
FWHM of C iv λλ5806[Å] | 33 ± 5 | 32 ± 3 | 37 ± 6 | 37.4 | [WO1–3] |
Crowther et al. (1998) | |||||
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{O{\,\small V}5590})$| | ≥1.1 | 0.6–1.1 | 0.25–0.6 | 1.58 | [WO1] |
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{C{\,\small IV}5806})$| | ≥0.2 | ≥0.2 | −1–0.2 | 0.46 | [WO1–2] |
log|$(EW_\rm{Ne{\,\small VII}5666}/EW_\rm{O{\,\small V}5590})\, ^{\dagger }$| | ≥0.0 | ≤0.0 | <<0.0 | −0.19 | [WO2] |
FWHM of C iv λλ5806 [Å] | 40 ± 10 | 160 ± 20 | 90 ± 30 | 37.4 | [WO1] |
†Note that we here identify the λ5290 emission line as O vi and not as C vi; the λ5666 as Ne vii and not as O vii; and the λ6068 as Ne viii and not as O viii, as previously defined (see Crowther et al. 1998; Acker & Neiner 2003). However, according to spectral observations these updated criteria remain as valid as before (see Werner et al. 2007), and given its importance for classification, the re-identification is worth clarifying for future use. See text for details.
Criteria . | [WO1] . | [WO2] . | [WO3] . | WRPN . | Classification . |
---|---|---|---|---|---|
(1) . | (2) . | (3) . | (4) . | (5) . | (6) . |
Acker & Neiner (2003) | |||||
|$F_\rm{O{\,\small VI}\ 3822}/F_\text{RB}$| | >1400 | 1000 ± 200 | 250 ± 40 | 822.5 ± 2.6 | [WO2] |
|$F_\rm{C{\,\small IV}\ 4650}/F_\text{RB}$| | 300 ± 100 | 270 ± 60 | 23 ± 2 | 149.3 ± 1.7 | [WO2] |
|$F_\rm{C{\,\small IV}\ 4686}/F_\text{RB}$| | 500 ± 200 | 300 ± 30 | 130 ± 30 | 170.2 ± 1.7 | [WO2–3] |
|$F_\rm{O{\,\small VI}\ 5290}/F_\text{RB}\, ^{\dagger }$| | >80 | 48 ± 2 | 20 ± 5 | 36.3 ± 0.3 | [WO2–3] |
|$F_\rm{C{\,\small IV}\ 5412}/F_\text{RB}$| | 45 ± 15 | 20 ± 4 | 15 ± 4 | 23.5 ± 0.3 | [WO2] |
|$F_\rm{C{\,\small IV}\ 5470}/F_\text{RB}$| | 35 ± 5 | 23 ± 2 | 14 ± 2 | 19.1 ± 0.3 | [WO2] |
|$F_\rm{Ne{\,\small VII}\ 5666}/F_\text{RB}\, ^{\dagger }$| | >25 | 10: | 8 ± 6 | 4.5 ± 0.2 | [WO2–3] |
|$F_\rm{Ne{\,\small VIII}\ 6068}/F_\text{RB}\, ^{\dagger }$| | 20 ± 8 | 6 ± 1 | 2 ± 1 | 4.18 ± 0.2 | [WO2–3] |
|$F_\rm{O{\,\small V}\ 6740}/F_\text{RB}$| | Presence | – | – | 3.7 ± 0.3 | [WO1] |
|$F_\rm{C{\,\small IV}\ 7060}/F_\text{RB}$| | 35 ± 20 | 18 ± 4 | 15 ± 4 | 23.6 ± 0.2 | [WO1–2] |
FWHM of C iv λλ5806[Å] | 33 ± 5 | 32 ± 3 | 37 ± 6 | 37.4 | [WO1–3] |
Crowther et al. (1998) | |||||
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{O{\,\small V}5590})$| | ≥1.1 | 0.6–1.1 | 0.25–0.6 | 1.58 | [WO1] |
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{C{\,\small IV}5806})$| | ≥0.2 | ≥0.2 | −1–0.2 | 0.46 | [WO1–2] |
log|$(EW_\rm{Ne{\,\small VII}5666}/EW_\rm{O{\,\small V}5590})\, ^{\dagger }$| | ≥0.0 | ≤0.0 | <<0.0 | −0.19 | [WO2] |
FWHM of C iv λλ5806 [Å] | 40 ± 10 | 160 ± 20 | 90 ± 30 | 37.4 | [WO1] |
Criteria . | [WO1] . | [WO2] . | [WO3] . | WRPN . | Classification . |
---|---|---|---|---|---|
(1) . | (2) . | (3) . | (4) . | (5) . | (6) . |
Acker & Neiner (2003) | |||||
|$F_\rm{O{\,\small VI}\ 3822}/F_\text{RB}$| | >1400 | 1000 ± 200 | 250 ± 40 | 822.5 ± 2.6 | [WO2] |
|$F_\rm{C{\,\small IV}\ 4650}/F_\text{RB}$| | 300 ± 100 | 270 ± 60 | 23 ± 2 | 149.3 ± 1.7 | [WO2] |
|$F_\rm{C{\,\small IV}\ 4686}/F_\text{RB}$| | 500 ± 200 | 300 ± 30 | 130 ± 30 | 170.2 ± 1.7 | [WO2–3] |
|$F_\rm{O{\,\small VI}\ 5290}/F_\text{RB}\, ^{\dagger }$| | >80 | 48 ± 2 | 20 ± 5 | 36.3 ± 0.3 | [WO2–3] |
|$F_\rm{C{\,\small IV}\ 5412}/F_\text{RB}$| | 45 ± 15 | 20 ± 4 | 15 ± 4 | 23.5 ± 0.3 | [WO2] |
|$F_\rm{C{\,\small IV}\ 5470}/F_\text{RB}$| | 35 ± 5 | 23 ± 2 | 14 ± 2 | 19.1 ± 0.3 | [WO2] |
|$F_\rm{Ne{\,\small VII}\ 5666}/F_\text{RB}\, ^{\dagger }$| | >25 | 10: | 8 ± 6 | 4.5 ± 0.2 | [WO2–3] |
|$F_\rm{Ne{\,\small VIII}\ 6068}/F_\text{RB}\, ^{\dagger }$| | 20 ± 8 | 6 ± 1 | 2 ± 1 | 4.18 ± 0.2 | [WO2–3] |
|$F_\rm{O{\,\small V}\ 6740}/F_\text{RB}$| | Presence | – | – | 3.7 ± 0.3 | [WO1] |
|$F_\rm{C{\,\small IV}\ 7060}/F_\text{RB}$| | 35 ± 20 | 18 ± 4 | 15 ± 4 | 23.6 ± 0.2 | [WO1–2] |
FWHM of C iv λλ5806[Å] | 33 ± 5 | 32 ± 3 | 37 ± 6 | 37.4 | [WO1–3] |
Crowther et al. (1998) | |||||
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{O{\,\small V}5590})$| | ≥1.1 | 0.6–1.1 | 0.25–0.6 | 1.58 | [WO1] |
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{C{\,\small IV}5806})$| | ≥0.2 | ≥0.2 | −1–0.2 | 0.46 | [WO1–2] |
log|$(EW_\rm{Ne{\,\small VII}5666}/EW_\rm{O{\,\small V}5590})\, ^{\dagger }$| | ≥0.0 | ≤0.0 | <<0.0 | −0.19 | [WO2] |
FWHM of C iv λλ5806 [Å] | 40 ± 10 | 160 ± 20 | 90 ± 30 | 37.4 | [WO1] |
†Note that we here identify the λ5290 emission line as O vi and not as C vi; the λ5666 as Ne vii and not as O vii; and the λ6068 as Ne viii and not as O viii, as previously defined (see Crowther et al. 1998; Acker & Neiner 2003). However, according to spectral observations these updated criteria remain as valid as before (see Werner et al. 2007), and given its importance for classification, the re-identification is worth clarifying for future use. See text for details.
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