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Prospecting for elements: Galactic halo planetary nebulae abundances and Virgo spiral galaxy color profiles.
(1998)
Near-infrared Virgo cluster spiral colors. Near-infrared (NIR) surface photometry in J (1.2$\mu$m), H (1.6$\mu$m) and K (2.2$\mu$m) have been obtained for a sample of Virgo cluster spirals; NGC4321, NGC4303, NGC4571, ...
Abundances in planetary nebulae: An autopsy of low and intermediate mass stars.
(1997)
In this work we report on the results of synthetic thermally pulsing asymptotic giant branch models (TP-AGB) and compare the results to the abundance ratios in a sample of planetary nebulae. We use updated the input ...