Planetary nebulae and H ii regions in the spiral galaxy NGC 300 - Clues on the evolution of abundance gradients and on AGB nucleosynthesis

Free Access

Issue		A&A Volume 552, April 2013


Article Number		A12
Number of page(s)		24
Section		Extragalactic astronomy
DOI		https://doi.org/10.1051/0004-6361/201220345
Published online		13 March 2013

Online material

	Fig. 1 Calibrated spectra of our observed PNe and compact H ii regions.
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	Fig. 1 continued.
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	Fig. 1 continued.
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	Fig. 1 continued.
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	Fig. 1 continued. Note that for PN 74, the red spectrum has been obtained with grism 300I, which has a much lower resolution than 600B and 600RI.
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	Fig. 1 continued.
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	Fig. 1 continued.
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	Fig. 1 continued.
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Table 4

Atomic data used in our abundance determinations.

Table 5

Electron densities and temperatures for the PNe and compact H ii regions in NGC 300.

Table 6

Ionic abundances for the PNe and compact H ii regions in NGC 300.

Table 7

Computed abundances for the PNe and H ii regions in NGC 300^a.

Table 8

Straight-line fitting of the radial variations of abundance ratios for the PNe and H ii regions in NGC 300.

Table 9

Typical properties of PNe and their progenitors.

© ESO, 2013

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