Mathematics – Logic
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21110011l&link_type=abstract
American Astronomical Society, AAS Meeting #211, #100.11; Bulletin of the American Astronomical Society, Vol. 39, p.913
Mathematics
Logic
Scientific paper
We present chemical abundance and plasma diagnostics analysis of a large sample of planetary nebulae in the Magellanic Clouds (MCPNe). High resolution spectra of the PNe in the 3700-7400 A range have been acquired with the the ESO 3.6m New Technology Telescope. These spectra are more deeply exposed than most other spectral studies of MCPNe, thus provide a better determination of nebular diagnostics. The nebular abundances will provide an unprecedented database to test the C, N, and O yields by stellar evolution model, and gain valuable insight into the chemical enrichment of the interstellar medium from low- and intermediate-mass stars in a low-metallicity environment. All our targets have imaging counterparts acquired with the Hubble Space Telescope, thus sizes and morphological types of the PNe are also known. This will allow the interpretation of PN evolution for each morphological class, including their chemical evolution and relative contribution to cosmic recycling.
Lee Ting-Hui
Shaw Richard A.
Stanghellini Letizia
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