J/A+A/456/451 Magellanic Clouds PNe abundances (Leisy+, 2006)
Planetary nebulae in the Magellanic Clouds.
II. Abundances and element production.
Leisy P., Dennefeld M.
<Astron. Astrophys., 456, 451-466 (2006)>
=2006A&A...456..451L 2006A&A...456..451L
ADC_Keywords: Magellanic Clouds ; Planetary nebulae ; Abundances ; Spectroscopy
Keywords: planetary nebulae: general - galaxies: Magellanic Clouds -
galaxies: evolution - ISM: abundances - stars: abundances
Abstract:
We present the second part of an optical spectroscopic study of
planetary nebulae in the LMC and SMC. The first paper,
Leisy & Dennefeld (1996, Cat. J/A+AS/116/95), discussed the CNO
cycle for those objects where C abundances were available. In this
paper we concentrate more on other elemental abundances (such as O,
Ne, S, Ar) and their implications for the evolution of the progenitor
stars. We use a much larger sample of 183 objects, of which 65 are our
own observations, where the abundances have been re-derived in a
homogeneous way. For 156 of them, the quality of data is considered
to be satisfactory for further analysis.
Description:
Abundances derived with ICF (ionization correction factors) for 156
PNe in the SMC and SMC In Annexes 1 and 2.
All the line fluxes used for the calculations are also provided.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 133 37 SMC PNe abundances
table3a.dat 212 8 SMC mean values of the abundances and statistics
table4.dat 133 120 LMC PNe abundances
table4a.dat 212 8 LMC mean values of the abundances and statistics
table5.dat 110 29 Objects with peculiar emission lines
table6.dat 64 10 Extended objects
tablea1.dat 59 3105 SMC line fluxes
tablea1a.dat 57 45 SMC PNe physical parameters
tablea2.dat 60 9522 LMC line fluxes
tablea2a.dat 57 138 LMC PNe physical parameters
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See also:
J/A+AS/116/95 : Magellanic Clouds PNe line intensities (Leisy+, 1996)
J/ApJS/75/407 : LMC + SMC PNe optical spectroscopy. I (Meatheringham+ 1991)
J/ApJS/76/1085 : LMC + SMC PNe optical spectroscopy. II (Meatheringham+ 1991)
J/MNRAS/234/583 : Abundances in Magellanic Cloud planetary nebulae (Monk+ 1988)
Byte-by-byte Description of file: table[34].dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Sequential number
5- 16 A12 --- Name PN name
18- 21 A4 --- PapI (P1) for objects already discussed in Paper I
23- 25 A3 --- RSpec Previous spectroscopic observations (1)
27 A1 --- Type [Iin] I, i or (n)on I type of PN
29- 32 F4.2 --- CHb Extinction
34 A1 --- n_Ne- [*~] Note on Ne- (G1)
36- 40 I5 cm-3 Ne- Electronic density (electron/cm3)
42 A1 --- n_TOIII [*:~] Note on TOIII
43- 47 I5 K TOIII Electronic temperature [OIII]
49 A1 --- n_TNII [:~*] Note on TNII
50- 54 I5 K TNII Electronic temperature [NII]
56- 60 F5.1 --- Excit Excitation (scale 1-10)
62 A1 --- n_He [<:~+] Note on He (G1)
63- 67 F5.2 [---] He Helium abundance (log scale, H=12)
69 A1 --- n_C [<:] Note on C (G1)
70- 73 F4.2 [---] C Carbon abundance (log scale, H=12)
75 A1 --- n_N [<:] Note on N (G1)
76- 79 F4.2 [---] N Nitrogen abundance (log scale, H=12)
81 A1 --- n_O [<:+] Note on O (G1)
82- 85 F4.2 [---] O Oxygen abundance (log scale, H=12)
87 A1 --- n_Ne [<:] Note on Ne (G1)
88- 91 F4.2 [---] Ne Neon abundance (log scale, H=12)
93 A1 --- n_S [~<:+] Note on S (G1)
94- 97 F4.2 [---] S Sulfur abundance (log scale, H=12)
99 A1 --- n_Ar [<:+] Note on Ar
100-103 F4.2 [---] Ar Argon abundance (log scale, H=12)
105-109 F5.2 [---] C/N Carbon nitrogen abundance ratio
111-115 F5.2 [---] C/O Carbon oxygen abundance ratio
117-121 F5.2 [---] N/O Nitrogen oxygen abundance ratio
123-127 F5.2 [---] C+N Carbon and nitrogen abundance sum
129-133 F5.2 [---] C+N+O Carbon nitrogen and oxygen abundance sum
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Note (1): Previous spectroscopic observations as follows:
mon = Monk et al., 1988, Cat. J/MNRAS/234/583
mea = Meatheringham and Dopita, 1991, Cat.
J/ApJS/75/407 and J/ApJS/76/1085
vas = Vassiliadis et al., 1992ApJ...394..489V 1992ApJ...394..489V
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Byte-by-byte Description of file: table[34]a.dat
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Bytes Format Units Label Explanations
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1- 50 A50 --- Group Group identification
52- 56 F5.2 [---] He Helium abundance (log scale, H=12
58- 61 F4.2 [---] C carbon abundance (log scale, H=12
63- 66 F4.2 [---] N nitrogen abundance (log scale, H=12
68- 72 F5.2 [---] O Oxygen abundance (log scale, H=12
74- 78 F5.2 [---] Ne Neon abundance (log scale, H=12
80- 83 F4.2 [---] S Sulfur abundance (log scale, H=12
85- 89 F5.2 [---] Ar Argon abundance (log scale, H=12
91- 95 F5.2 [---] C/N Carbon nitrogen abundance ratio
97-101 F5.2 [---] C/O Carbon oxygen abundance ratio
103-107 F5.2 [---] N/O Nitrogen oxygen abundance ratio
109-113 F5.2 [---] C+N Carbon and nitrogen abundance sum
115-119 F5.2 [---] C+N+O Carbon nitrogen and oxygen abundance sum
121-122 I2 --- o_He ? Number of objects for helium abundance
124 I1 --- o_C ? Number of objects for carbon abundance
126-127 I2 --- o_N ? Number of objects for nitrogen abundance
129-130 I2 --- o_O ? Number of objects for oxygen abundance
132-133 I2 --- o_Ne ? Number of objects for neon abundance
135-136 I2 --- o_S ? Number of objects for sulfur abundance
138-139 I2 --- o_Ar ? Number of objects for argon abundance
141 I1 --- o_C/N ? Number of objects for C/N
143 I1 --- o_C/O ? Number of objects for C/O
145-146 I2 --- o_N/O ? Number of objects for N/O
148-149 I2 --- o_C+N ? Number of objects for C+N
151-152 I2 --- o_C+N+O ? Number of objects for C+N+O
154-157 F4.2 [---] e_He ? 1 sigma error for helium abundance
159-162 F4.2 [---] e_C ? 1 sigma error for carbon abundance
164-167 F4.2 [---] e_N ? 1 sigma error for nitrogen abundance
169-172 F4.2 [---] e_O ? 1 sigma error for oxygen abundance
174-177 F4.2 [---] e_Ne ? 1 sigma error for neon abundance
179-182 F4.2 [---] e_S ? 1 sigma error for sulfur abundance
184-187 F4.2 [---] e_Ar ? 1 sigma error for argon abundance
189-192 F4.2 [---] e_C/N ? 1 sigma error for C/N
194-197 F4.2 [---] e_C/O ? 1 sigma error for C/O
199-202 F4.2 [---] e_N/O ? 1 sigma error for N/O
204-207 F4.2 [---] e_C+N ? 1 sigma error for C+N
209-212 F4.2 [---] e_C+N+O ? 1 sigma error for C+N+O
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name PN name
14 A1 --- l_Int1 [~] Limit flag on Int1
15- 17 F3.1 --- Int1 ? NIII_4641 intensity line (1)
19 A1 --- l_Int2 [~] Limt flag on Int2
20- 22 F3.1 --- Int2 ? CIII_4649 intensity line (1)
24 A1 --- l_Int3 [~] Limt flag on Int3
25- 27 F3.1 --- Int3 ? CIV_4659 intensity line (1)
29- 36 A8 --- Int4 [Yes Possible] CIV_5806 intensity line
38- 51 A14 --- Iron line identification
53-110 A58 --- Com Comments
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Note (1): All intensities are normalized to Hβ=100.
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name PN name
15- 28 A14 --- Size Extension
30- 64 A35 --- Com Comments
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Byte-by-byte Description of file: tablea1.dat tablea2.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name PN name
14- 18 F5.0 0.1nm Lambda Wavelength line
20- 33 A14 --- Line Identification line(s)
36- 41 F6.3 --- flambda Extinction function value
44 A1 --- l_Fobs Limit flag on Fobs
45- 50 F6.1 --- Fobs ?=- Observed intensity (1)
51 A1 --- u_Fobs [?] Uncertainty flag on Fobs
52 A1 --- l_Fcor Limit flag on Fcor
53- 59 F7.1 --- Fcor ?=- Corrected intensity (1)
60 A1 --- u_Fcor [?] Uncertainty flag on Fcor
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Note (1): All intensities are normalized to Hβ=100.
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Byte-by-byte Description of file: tablea1a.dat tablea2a.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name PN name
14- 18 F5.0 10-19W/m2 FHbeta ?=- Hβ flux (in 10-16erg/cm2/s)
21- 24 F4.1 % e_FHbeta ?=- rms uncertainty on Hbeta
27 A1 --- n_Ne- [*] Note on Ne- (G1)
28- 33 F6.0 cm-3 Ne- Electronic density (in electron/cm3)
35 A1 --- l_T[OIII] [*:] Note on T[OIII] (G1)
37- 42 F6.0 K T[OIII] ?=- Electronic [OIII] temperature
45 A1 --- l_T[NII] [*:] Note on T[NII] (G1)
47- 52 F6.0 K T[NII] ?=- Electronic [NII] temperature
54- 57 F4.2 --- Copt Extinction coefficient
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Note (G1): Flags as follows:
"*" = no direct temperature or density determination was possible so
the value is chosen arbitrarily
":" = poorly determined value
"+" = if one or more ionic stage is missing, we only have a lower
limit to the abundance
"<" = if no line at all was observed for a given element, we use the
faintest line intensity detected in the spectrum to derive an
upper limit to the abundance
"~" = approximated value
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Nomenclature note:
LMC-PNazzo identified to MGPN LMC 48 by the author
Acknowledgements: Pierre Leisy, pleisy(at)ing.iac.es
(End) Patricia Vannier [CDS] 07-Sep-2006