High chemical abundances in virgo spiral galaxies?

Gregory A. Shields, Evan D. Skillman, Robert C. Kennicutt

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

We present evidence that spiral galaxies in the Virgo Cluster have systematically higher interstellar abundances than comparable field galaxies. This conclusion is based on spectra of H II regions in five Virgo spirals of type Sc. A possible explanation is that abundances in the field spirals are strongly affected by infall of metal-poor gas or by radial inflow of gas from the outer H I disk. These processes are inhibited in the cluster environment, and the Virgo spirals may have evolved more nearly in the manner of the closed box " simple model" of chemical evolution.

Original languageEnglish (US)
Pages (from-to)82-91
Number of pages10
JournalAstrophysical Journal
Volume371
Issue number1
DOIs
StatePublished - Apr 10 1991

Keywords

  • Galaxies: abundances
  • Galaxies: clustering
  • Galaxies: evolution
  • Galaxies: interstellar matter
  • Nebulae: H II regions

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