Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88..483k&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 88, April 1983, p. 483-488. Research supported by the Rijksuniversiteit te Leiden an
Astronomy and Astrophysics
Astronomy
90
Astronomical Photometry, Galactic Evolution, Spiral Galaxies, Virgo Galactic Cluster, Centimeter Waves, Color, H Alpha Line, Luminosity, Mass To Light Ratios, Ubv Spectra
Scientific paper
Integrated Balmer emission line fluxes have been measured for 26 spiral galaxies in the core of the Virgo cluster. They are combined with published 21-cm and UBV color data in order to compare the disk properties of the cluster galaxies with galaxies in the field. Virgo spirals of a given Hubble type possess less star formation, less neutral hydrogen, and are redder than their field counterparts. Various possible selection effects are examined, but they cannot explain the differences. The relationships between color, M(H)/L and H-alpha strengths, however, are indistinguishable in Virgo and the field. Some of the Virgo spirals may simply be normal spirals of slightly earlier type, but at least a few appear to be genuinely anemic galaxies, as suggested by van den Bergh.
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