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Title:
A Population Synthesis Code for Planetary Nebulae
Authors:
Ciardullo, R.; Kuzio, R. E.; Simone, A.
Affiliation:
AA(Penn State), AB(U Maryland), AC(Penn State)
Publication:
American Astronomical Society, 199th AAS Meeting, #136.05; Bulletin of the American Astronomical Society, Vol. 33, p.1510
Publication Date:
12/2001
Origin:
AAS
Bibliographic Code:
2001AAS...19913605C

Abstract

We describe a population synthesis program designed to probe the chemical and star formation history of a galaxy via its planetary nebulae. The program models galactic evolution via a series of starbursts with varying stellar metallicity, and, with the aid of an initial mass-final mass relation, predicts the distribution of central star masses for present day objects. The program then uses this information, along with post-asymptotic giant branch stellar evolutionary tracks, a generalized description of the stars' expanding nebulae and circumstellar dust, and the CLOUDY photo-ionization code, to generate the emission-line strengths for an ensemble of model PNe. These data can then be compared to the observed emission lines of a population's planetary nebulae. We present the first results from this program. We show that helium-burning central stars are more important to the bright-end of the [O III] λ 5007 planetary nebula luminosity function than hydrogen-burning stars, and demonstrate that this luminosity function is not monotonic for all stellar populations.
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