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J/A+AS/106/559 HeII 4686 line intensities of PN (Tylenda+, 1994)
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A catalogue of HeII 4686 line intensities in Galactic planetary nebulae
Tylenda R., Stasinska G., Acker A., Stenholm B.
<Astron. Astrophys. Suppl. Ser. 106, 559 (1994)>
=1994A&AS..106..559T (SIMBAD/NED Reference)
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ADC_Keywords: Planetary nebulae ; Spectroscopy
Keywords: stars: asymptotic, post-asymptotic giant branch (AGB, post-AGB) -
planetary nebulae: general - stars: fundamental parameters -
catalogs
Abstract:
We have compiled the intensities of the HeII 4686 lines measured in
Galactic planetary nebulae. We present a few observational diagrams
related to this parameter, and discuss them with the help of
theoretical diagrams obtained from simple model planetary nebulae
surrounding evolving central stars of various masses. We determine the
hydrogen and helium Zanstra temperature for all the objects with
accurate enough data. We argue that, for Galactic planetary nebulae as
a whole, the main cause for the Zanstra discrepancy is leakage of
stellar ionizing photons from the nebulae.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 80 768 Intensities of HeII4686 and Halpha
for Galactic planetary nebulae
refs.dat 74 49 References (bibcodes)
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See also:
V/84 : Strasbourg-ESO Catalogue of Galactic PLanetary Nebulae
(Acker et al., 1992)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- PNG PNG number of the planetary nebulae from the
Strasbourg-ESO catalogue
13- 24 A12 --- Name Usual name of the planetary nebulae
25 A1 --- l_HeII Limit flag for HeII 4686 intensity
26- 30 F5.1 --- HeII Intensity of HeII 4686 on the scale Hbeta=100
31 A1 --- u_HeII Uncertainty flag on HeII 4686 intensity
33- 52 A20 --- r_HeII Comma-separated short references for HeII 4686
(see refs.dat, full references in the paper)
53 A1 --- l_Halpha Limit flag for Halpha intensity
54- 58 F5.0 --- Halpha []? intensity of the Halpha line on the scale
Hbeta=100
59 A1 --- u_Halpha Uncertainty flag on Halpha intensity
60- 80 A21 --- r_Halpha Comma-separated short references for Halpha
(see refs.dat, full references in the paper)
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- RefCode Reference code
7 A1 --- --- [=]
8- 26 A19 --- BibCode The 19-digit bibcode
28 A1 --- --- [-]
30- 74 A45 --- Text Authors of the paper
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History:
* 03-May-1994: First preparation by Patricia Bauer [CDS]
* 28-Feb-2000: refs.dat added, missing references added (Francois Ochsenbein)
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(End) Patricia Bauer, Francois Ochsenbein [CDS] 28-Feb-2000