Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19913605c&link_type=abstract
American Astronomical Society, 199th AAS Meeting, #136.05; Bulletin of the American Astronomical Society, Vol. 33, p.1510
Astronomy and Astrophysics
Astronomy
1
Scientific paper
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.
Ciardullo Robin
Kuzio R. E.
Simone Antonino
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