Abundances in Spiral Galaxies of the Pegasus I Cluster

Details Abundances in Spiral Galaxies of the Pegasus I Cluster Abundances in Spiral Galaxies of the Pegasus I Cluster

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21714920r&link_type=abstract

American Astronomical Society, AAS Meeting #217, #149.20; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a study of abundances in spiral galaxies of the Pegasus I cluster (cz = 4000 km/s), motivated by evidence for high interstellar abundances in the spirals of the Virgo cluster. Spectra of H II regions in six galaxies with a range of H I deficiency were obtained with the VIRUS-P integral field spectrograph on the 2.7-meter telescope at McDonald Observatory. The results suggest a pattern of higher abundances in more hydrogen deficient galaxies. This resembles the case for Virgo, despite the lower velocity dispersion and higher spiral fraction in the Pegasus cluster.

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