SIMBAD references

2014AJ....147..131P - Astron. J., 147, 131 (2014/June-0)

The abundance properties of nearby late-type galaxies. I. The data.

PILYUGIN L.S., GREBEL E.K. and KNIAZEV A.Y.

Abstract (from CDS):

We investigate the oxygen and nitrogen abundance distributions across the optical disks of 130 nearby late-type galaxies using around 3740 published spectra of H II regions. We use these data in order to provide homogeneous abundance determinations for all objects in the sample, including H II regions in which not all of the usual diagnostic lines were measured. Examining the relation between N and O abundances in these galaxies we find that the abundances in their centers and at their isophotal R25 disk radii follow the same relation. The variation in N/H at a given O/H is around 0.3 dex. We suggest that the observed spread in N/H may be partly caused by the time delay between N and O enrichment and the different star formation histories in galaxies of different morphological types and dimensions. We study the correlations between the abundance properties (central O and N abundances, radial O and N gradients) of a galaxy and its morphological type and dimension.

Abstract Copyright:

Journal keyword(s): galaxies: abundances - galaxies: irregular - galaxies: ISM - galaxies: spiral

VizieR on-line data: <Available at CDS (J/AJ/147/131): table1.dat table2.dat table3.dat refs.dat>

Simbad objects: 139

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2019.10.18-01:54:46

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