SIMBAD references

2013ApJ...773....4R - Astrophys. J., 773, 4 (2013/August-2)

Dependence of nebular heavy-element abundance on H I content for spiral galaxies.

ROBERTSON P., SHIELDS G.A., DAVE R., BLANC G.A. and WRIGHT A.

Abstract (from CDS):

We analyze the galactic H I content and nebular log (O/H) for 60 spiral galaxies in the Moustakas et al. (2006a) spectral catalog. After correcting for the mass-metallicity relationship, we show that the spirals in cluster environments show a positive correlation for log (O/H) on DEF, the galactic H I deficiency parameter, extending the results of previous analyses of the Virgo and Pegasus I clusters. Additionally, we show for the first time that galaxies in the field obey a similar dependence. The observed relationship between H I deficiency and galactic metallicity resembles similar trends shown by cosmological simulations of galaxy formation including inflows and outflows. These results indicate the previously observed metallicity-DEF correlation has a more universal interpretation than simply a cluster's effects on its member galaxies. Rather, we observe in all environments the stochastic effects of metal-poor infall as minor mergers and accretion help to build giant spirals.

Abstract Copyright:

Journal keyword(s): galaxies: abundances - galaxies: evolution - galaxies: spiral

Simbad objects: 85

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2020.11.25-07:33:56

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