Table 5.

Diagnostic criteria to classify HD 193949 as a [WR]-type CSPN.

Criteria[WO1][WO2][WO3]WRPNClassification
(1)(2)(3)(4)(5)(6)
Acker & Neiner (2003)
|$F_\rm{O{\,\small VI}\ 3822}/F_\text{RB}$|>14001000 ± 200250 ± 40822.5 ± 2.6[WO2]
|$F_\rm{C{\,\small IV}\ 4650}/F_\text{RB}$|300 ± 100270 ± 6023 ± 2149.3 ± 1.7[WO2]
|$F_\rm{C{\,\small IV}\ 4686}/F_\text{RB}$|500 ± 200300 ± 30130 ± 30170.2 ± 1.7[WO2–3]
|$F_\rm{O{\,\small VI}\ 5290}/F_\text{RB}\, ^{\dagger }$|>8048 ± 220 ± 536.3 ± 0.3[WO2–3]
|$F_\rm{C{\,\small IV}\ 5412}/F_\text{RB}$|45 ± 1520 ± 415 ± 423.5 ± 0.3[WO2]
|$F_\rm{C{\,\small IV}\ 5470}/F_\text{RB}$|35 ± 523 ± 214 ± 219.1 ± 0.3[WO2]
|$F_\rm{Ne{\,\small VII}\ 5666}/F_\text{RB}\, ^{\dagger }$|>2510:8 ± 64.5 ± 0.2[WO2–3]
|$F_\rm{Ne{\,\small VIII}\ 6068}/F_\text{RB}\, ^{\dagger }$|20 ± 86 ± 12 ± 14.18 ± 0.2[WO2–3]
|$F_\rm{O{\,\small V}\ 6740}/F_\text{RB}$|Presence3.7 ± 0.3[WO1]
|$F_\rm{C{\,\small IV}\ 7060}/F_\text{RB}$|35 ± 2018 ± 415 ± 423.6 ± 0.2[WO1–2]
FWHM of C iv λλ5806[Å]33 ± 532 ± 337 ± 637.4[WO1–3]
Crowther et al. (1998)
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{O{\,\small V}5590})$|≥1.10.6–1.10.25–0.61.58[WO1]
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{C{\,\small IV}5806})$|≥0.2≥0.2−1–0.20.46[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 ± 10160 ± 2090 ± 3037.4[WO1]
Criteria[WO1][WO2][WO3]WRPNClassification
(1)(2)(3)(4)(5)(6)
Acker & Neiner (2003)
|$F_\rm{O{\,\small VI}\ 3822}/F_\text{RB}$|>14001000 ± 200250 ± 40822.5 ± 2.6[WO2]
|$F_\rm{C{\,\small IV}\ 4650}/F_\text{RB}$|300 ± 100270 ± 6023 ± 2149.3 ± 1.7[WO2]
|$F_\rm{C{\,\small IV}\ 4686}/F_\text{RB}$|500 ± 200300 ± 30130 ± 30170.2 ± 1.7[WO2–3]
|$F_\rm{O{\,\small VI}\ 5290}/F_\text{RB}\, ^{\dagger }$|>8048 ± 220 ± 536.3 ± 0.3[WO2–3]
|$F_\rm{C{\,\small IV}\ 5412}/F_\text{RB}$|45 ± 1520 ± 415 ± 423.5 ± 0.3[WO2]
|$F_\rm{C{\,\small IV}\ 5470}/F_\text{RB}$|35 ± 523 ± 214 ± 219.1 ± 0.3[WO2]
|$F_\rm{Ne{\,\small VII}\ 5666}/F_\text{RB}\, ^{\dagger }$|>2510:8 ± 64.5 ± 0.2[WO2–3]
|$F_\rm{Ne{\,\small VIII}\ 6068}/F_\text{RB}\, ^{\dagger }$|20 ± 86 ± 12 ± 14.18 ± 0.2[WO2–3]
|$F_\rm{O{\,\small V}\ 6740}/F_\text{RB}$|Presence3.7 ± 0.3[WO1]
|$F_\rm{C{\,\small IV}\ 7060}/F_\text{RB}$|35 ± 2018 ± 415 ± 423.6 ± 0.2[WO1–2]
FWHM of C iv λλ5806[Å]33 ± 532 ± 337 ± 637.4[WO1–3]
Crowther et al. (1998)
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{O{\,\small V}5590})$|≥1.10.6–1.10.25–0.61.58[WO1]
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{C{\,\small IV}5806})$|≥0.2≥0.2−1–0.20.46[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 ± 10160 ± 2090 ± 3037.4[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.

Table 5.

Diagnostic criteria to classify HD 193949 as a [WR]-type CSPN.

Criteria[WO1][WO2][WO3]WRPNClassification
(1)(2)(3)(4)(5)(6)
Acker & Neiner (2003)
|$F_\rm{O{\,\small VI}\ 3822}/F_\text{RB}$|>14001000 ± 200250 ± 40822.5 ± 2.6[WO2]
|$F_\rm{C{\,\small IV}\ 4650}/F_\text{RB}$|300 ± 100270 ± 6023 ± 2149.3 ± 1.7[WO2]
|$F_\rm{C{\,\small IV}\ 4686}/F_\text{RB}$|500 ± 200300 ± 30130 ± 30170.2 ± 1.7[WO2–3]
|$F_\rm{O{\,\small VI}\ 5290}/F_\text{RB}\, ^{\dagger }$|>8048 ± 220 ± 536.3 ± 0.3[WO2–3]
|$F_\rm{C{\,\small IV}\ 5412}/F_\text{RB}$|45 ± 1520 ± 415 ± 423.5 ± 0.3[WO2]
|$F_\rm{C{\,\small IV}\ 5470}/F_\text{RB}$|35 ± 523 ± 214 ± 219.1 ± 0.3[WO2]
|$F_\rm{Ne{\,\small VII}\ 5666}/F_\text{RB}\, ^{\dagger }$|>2510:8 ± 64.5 ± 0.2[WO2–3]
|$F_\rm{Ne{\,\small VIII}\ 6068}/F_\text{RB}\, ^{\dagger }$|20 ± 86 ± 12 ± 14.18 ± 0.2[WO2–3]
|$F_\rm{O{\,\small V}\ 6740}/F_\text{RB}$|Presence3.7 ± 0.3[WO1]
|$F_\rm{C{\,\small IV}\ 7060}/F_\text{RB}$|35 ± 2018 ± 415 ± 423.6 ± 0.2[WO1–2]
FWHM of C iv λλ5806[Å]33 ± 532 ± 337 ± 637.4[WO1–3]
Crowther et al. (1998)
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{O{\,\small V}5590})$|≥1.10.6–1.10.25–0.61.58[WO1]
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{C{\,\small IV}5806})$|≥0.2≥0.2−1–0.20.46[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 ± 10160 ± 2090 ± 3037.4[WO1]
Criteria[WO1][WO2][WO3]WRPNClassification
(1)(2)(3)(4)(5)(6)
Acker & Neiner (2003)
|$F_\rm{O{\,\small VI}\ 3822}/F_\text{RB}$|>14001000 ± 200250 ± 40822.5 ± 2.6[WO2]
|$F_\rm{C{\,\small IV}\ 4650}/F_\text{RB}$|300 ± 100270 ± 6023 ± 2149.3 ± 1.7[WO2]
|$F_\rm{C{\,\small IV}\ 4686}/F_\text{RB}$|500 ± 200300 ± 30130 ± 30170.2 ± 1.7[WO2–3]
|$F_\rm{O{\,\small VI}\ 5290}/F_\text{RB}\, ^{\dagger }$|>8048 ± 220 ± 536.3 ± 0.3[WO2–3]
|$F_\rm{C{\,\small IV}\ 5412}/F_\text{RB}$|45 ± 1520 ± 415 ± 423.5 ± 0.3[WO2]
|$F_\rm{C{\,\small IV}\ 5470}/F_\text{RB}$|35 ± 523 ± 214 ± 219.1 ± 0.3[WO2]
|$F_\rm{Ne{\,\small VII}\ 5666}/F_\text{RB}\, ^{\dagger }$|>2510:8 ± 64.5 ± 0.2[WO2–3]
|$F_\rm{Ne{\,\small VIII}\ 6068}/F_\text{RB}\, ^{\dagger }$|20 ± 86 ± 12 ± 14.18 ± 0.2[WO2–3]
|$F_\rm{O{\,\small V}\ 6740}/F_\text{RB}$|Presence3.7 ± 0.3[WO1]
|$F_\rm{C{\,\small IV}\ 7060}/F_\text{RB}$|35 ± 2018 ± 415 ± 423.6 ± 0.2[WO1–2]
FWHM of C iv λλ5806[Å]33 ± 532 ± 337 ± 637.4[WO1–3]
Crowther et al. (1998)
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{O{\,\small V}5590})$|≥1.10.6–1.10.25–0.61.58[WO1]
log|$(EW_\rm{O{\,\small VI}3820}/EW_\rm{C{\,\small IV}5806})$|≥0.2≥0.2−1–0.20.46[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 ± 10160 ± 2090 ± 3037.4[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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