AGB stars: testing carbon loss via the ultraviolet lines

Details AGB stars: testing carbon loss via the ultraviolet lines AGB stars: testing carbon loss via the ultraviolet lines

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007uasb.conf..199k&link_type=abstract

UV Astronomy: Stars from Birth to Death. Proceedings of the Joint Discussion n.4 during the IAU general Assembly of 2006. Ana I.

Astronomy and Astrophysics

Astronomy

Agb Stars, Mass Loss, Uv Line Intensities, Carbon Abundances, Planetary Nebulae

Scientific paper

Method to determine the realistic abundances of carbon in planetary nebulae (PNe) based on the actual distribution functions of errors in measured line intensities was used to determine the C abundances for large sample of the galactic PNe are given. The mean temperatute and electron number thensities and the amplitudes of temperature and density fluctuations are found. The intensity of the ultraviolet lines of C ions are used to determine the more exact abundances. Basing on the newly carbon abundances the total mass losses of carbon during AGB and post-AGB stages of evolution are estimated.

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