In this paper we present millimetric and optical data obtained in order to study environmental effects in galaxies. Our sample has 47 intermediate Hubble type spirals in either dense environments or in the field. We compared general properties, such as far-infrared luminosity, blue luminosity, and total molecular gas content, to other samples of galaxies, such as ultraluminous infrared galaxies, clusters of galaxies and spiral galaxies. We find that overall our sample has general properties very similar to these other galaxies; i.e. they are not a separate class of objects.
Acknowledgements
We thank the ON team of observers at the ESO1.52m, in particular Christopher Willmer for helping with the data reduction and Henrique Schmitt for valuable suggestions regarding the stellar contamination. This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. The Digitized Sky Surveys were produced at the Space Telescope Science Institute under US Government grant NAG W-2166. The images of these surveys are based on photographic data obtained using the Oschin Schmidt Telescope on Palomar Mountain and the UK Schmidt Telescope. D.F.M. was partially supported by CNPq Fellowship 301456/95-0, and the Swedish Vetenskapsrådet project number F620-489/2000. M.A.G.M. was supported by CNPq grant 301366/86-1. T.W. was supported by Vetenskapsrådet project number F1299/1999.
Copyright ESO 2002