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J/A+A/279/567     Abundances of non-type I PNe in LMC    (Freitas Pacheco+ 1993)

Abundances of non-type I planetary nebulae in the LMC de Freitas Pacheco J.A., Costa R.D.D., Maciel W.J. <Astron. Astrophys. 279, 567 (1993)> =1993A&A...279..567D
ADC_Keywords: Planetary nebulae ; Spectroscopy ; Abundances Keywords: ISM: planetary nebulae : general - Magellanic Clouds - Galaxies: abundances Abstract: Spectroscopic observations, plasma diagnostics and chemical composition of 15 non-type I planetary nebulae (PNe) in the Large Magellanic Cloud (LMC) are reported. Abundances of He, O, N, S, and Ar are determined and compared with recently obtained data for nebulae both in the Magellanic Clouds and in the Galaxy. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 164 29 Line intensities for the nebulae table3.dat 31 15 Physical properties table4.dat 68 15 Elemental abundances
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [SMP] 5- 6 I2 --- SMP SMP number of the nebula 8 A1 --- n_I [c] When blank, observed fluxes, when c, extinction-corrected fluxes 12- 15 F4.1 --- I4340 ? Hgamma line intensity (1) 17 A1 --- u_I4340 uncertainty flag on I4340 20- 23 F4.1 --- I4363 ? line intensity [OIII] (1) 25 A1 --- u_I4363 uncertainty flag on I4363 28- 31 F4.1 --- I4686 ? line intensity HeII (1) 35- 37 I3 --- I4861 [100] Hbeta line intensity 42- 45 I4 --- I5007 line intensity [OIII] (1) 48- 50 F3.1 --- I5411 ? line intensity HeII (1) 56- 59 F4.2 --- I5754 ? line intensity [NII] (1) 60 A1 --- u_I5754 uncertainty flag on I5754 63- 66 F4.1 --- I5876 line intensity HeI (1) 71- 74 F4.1 --- I6300 line intensity [OI] (1) 80- 83 F4.2 --- I6312 line intensity [SIII] (1) 86- 88 I3 --- I6563 Halpha line intensity (1) 94- 98 F5.1 --- I6584 line intensity [NII] (1) 103-106 F4.1 --- I6678 ? line intensity HeI (1) 111-114 F4.1 --- I6724 line intensity [SII] (1) 120-122 F3.1 --- I7005 ? line intensity [ArV] (1) 127-130 F4.1 --- I7065 ? line intensity HeI (1) 135-138 F4.1 --- I7135 line intensity [ArIII] (1) 143-146 F4.1 --- I7325 line intensity [OII] (1) 152-155 F4.2 --- R(SII) ? intensity ratio of SII lines 6716/6730 160-163 F4.2 mag E(B-V) ? Colour excess
Note (1): the intensity is scaled to Hβ=100
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [SMP] 5- 6 I2 --- SMP SMP number of the nebula 9- 13 I5 K T(OIII) ? OIII temperature 14 A1 --- u_T(OIII) uncertainty flag on T(OIII) 16 A1 --- r_T(OIII) References to T(OIII) (2) 18- 22 I5 K T(NII) ? NII temperature 23 A1 --- u_T(NII) uncertainty flag on T(NII) 26- 31 E6.1 cm-3 Ne Electronic density
Note (2): References: 1: Aller, L.H., Keyes, C.D., Maran, S.P., Gull, T.R., Michalitsianos, A.G., Stecher, T,P. 1987ApJ...320..159A 2: Henry, R.B.C., Liebert, J., Boronson, T.A. 1989ApJ...339..872H 3: Meatheringham, S.J. & Dopita, M.A. 1991ApJS...76.1085M 4: Monk, D.J., Barlow, M.J., Clegg, R.E.S. 1988MNRAS.234..583M 5: Vassiliadis, E., Dopita, M.A., Morgan, D.A., Bell, J.F. 1992ApJS...83...87V
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [SMP] 5- 6 I2 --- SMP SMP number of the nebula 11- 15 F5.3 --- He/H He/H abundance (0.109±0.018) 25- 28 F4.2 --- Ab(O) O abundance log(O/H) + 12 (8.45 ±0.20) 38- 41 F4.2 --- Ab(N) N abundance log(N/H) + 12 (7.47 ±/0.44) 51- 54 F4.2 --- Ab(S) S abundance log(S/H) + 12 (6.77 ±0.31) 65- 68 F4.2 --- Ab(Ar) Ar abundance log(Ar/H)+ 12 (5.95 ±0.21)
Table 5: Oxygen abundances in the LMC --------------------------------------------------------------------- Object Ab(O) Sigma Source --------------------------------------------------------------------- Type I PNe 8.33 0.13 paper I (1992A&A...257..619D) Non-type I PNe 8.42 0.25 this work Non-type I PNe 8.30 0.06 Dopita (1991, Proc. IAU Symp. 148) Type I PNe 8.41 0.20 Barlow (1991, Proc. IAU Symp. 148) Non-type I PNe 8.41 0.18 Barlow (1991, Proc. IAU Symp. 148) HII regions 8.38 Dufour (1984, Proc. IAU Symp. 108) "Young objects" 8.35 Russell & Dopita (1992ApJ...384..508R) ---------------------------------------------------------------------
(End) Patricia Bauer [CDS] 26-Jul-1993
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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