Title of article
Symbiotic Stars and Planetary Nebulae in the λ5007/Hβ vs. λ4363/Hγ Diagnostic Diagram
Author/Authors
N. O. Baella، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
4
From page
305
To page
308
Abstract
In this work the location of a sample of 174 flux measurements (planetary nebulae, S,D,D’-type Symbiotic Star (SS) and six peculiar objects) on the λ5007/Hβ vs. λ4363/Hγ diagnostic diagram are compared, in order to investigate possible differences in electron density and temperature among them. Helium abundances, electron density and temperature were obtained for five D’-type SS and HD149427 (PC 11). In order to calculate them, expressions normally used for objects with low density were modified, in such a way that they can be used in objects with higher densities.
Keywords
Binaries: symbiotic , planetary nebulae: general , novae , cataclysmic variables
Journal title
Proceedings of the International Astronomical Union
Serial Year
2009
Journal title
Proceedings of the International Astronomical Union
Record number
674950
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