Abundance Gradients in M33: the Use of Planetary Nebulae

Bibcode
2005AIPC..804..262S
DOI
10.1063/1.2146290
Stasińska, G.; Vílchez, J. M.; Pérez, E.; Corradi, R. L. M.; Mampaso, A.; Magrini, L.
Referencia bibliográfica

PLANETARY NEBULAE AS ASTRONOMICAL TOOLS: International Conference on Planetary Nebulae as Astronomical Tools. AIP Conference Proceedings, Volume 804, pp. 262-264 (2005).

Fecha de publicación:
11
2005
Número de autores
6
Número de autores del IAC
2
Número de citas
2
Número de citas referidas
2
Descripción
We present our observations of several planetary nebulae in the central zones of the spiral galaxy M33. We combine the abundances we derived for our objects with those obtained by Magrini et al. (2004) for a sample of PNe at larger galactocentric distances. We compare the radial abundance distribution derived from planetary nebulae with the one derived by HII regions and massive stars. We discuss the uncertainties and biases of the abundance derivations in planetary nebulae and HII regions. We show that planetary nebulae, although difficult to observe, are an important tool to investigate the chemical evolution of galaxies.
Tipo
Sin árbitro
Nebulosas planetarias
Galaxias
Nebulosas planetarias
Galaxias espirales

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