J/A+A/463/265 Chemical compositions of 48 WR planetary nebulae (Girard+, 2007)
Chemical compositions and plasma parameters of planetary nebulae with
Wolf-Rayet and wels type central stars.
Girard P., Koeppen J., Acker A.
<Astron. Astrophys. 463, 265 (2007)>
=2007A&A...463..265G 2007A&A...463..265G
ADC_Keywords: Planetary nebulae ; Abundances
Keywords: planetary nebulae: general - stars: abundances - stars: evolution -
stars: Wolf-Rayet - stars: AGB and post-AGB
Abstract:
Chemical compositions and other properties of planetary nebulae around
central stars of spectral types [WC], [WO], and wels are compared with
those of "normal" central stars, in order to clarify the evolutionary
status of each type and their interrelation.
We use plasma diagnostics to derive from optical spectra the plasma
parameters and chemical compositions of 48 planetary nebulae. We also
reanalyze the published spectra of a sample of 167 non-WR PN. The
results as well as the observational data are compared in detail with
those from other studies of the objects in common.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
objects.dat 52 48 Simbad positions of the 48 WR planetary nebulae
table.dat 53 1632 The dereddened line intensities measured from
the spectra of 48 WR planetary nebulae used in
this work
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See also:
V/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)
V/127 : MASH Catalog of Planetary Nebulae (Parker+ 2006)
Byte-by-byte Description of file: objects.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [PNG]
5- 14 A10 --- PNG PNG designation (LLL.l-BB.b)
16- 23 A8 --- Name Other name of the PN
25- 26 I2 h RAh Simbad right ascension (J2000)
28- 29 I2 min RAm Simbad right ascension (J2000)
31- 34 F4.1 s RAs Simbad right ascension (J2000)
36 A1 --- DE- Simbad declination sign (J2000)
37- 38 I2 deg DEd Simbad declination (J2000)
40- 41 I2 arcmin DEm Simbad declination (J2000)
43- 44 I2 arcsec DEs Simbad declination (J2000)
46- 52 F7.4 fW/m2 F(Hb) Flux of Hβ, in 10-12erg/cm2/s
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Byte-by-byte Description of file: table.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [PNG]
5- 14 A10 --- PNG PNG designation (LLL.l-BB.b)
16- 23 A8 --- Name PN name
26- 29 I4 0.1nm lambda ? Wavelength
30- 31 A2 --- n_lambda [Hb ] Hb for Hβ
34- 42 F9.4 --- F(lambda) ?=- Flux (in units of F(Hb)=100)
47- 53 F7.2 --- I(lambda) ?=- Deredenned intensity (in units of I(Hb)=100)
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Acknowledgements:
Joachim Koppen, koppen(at)astro.u-strasbg(fr)
(End) Patricia Vannier [CDS] 30-Jan-2007