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Number Counts and Evolving Dwarfs

Published online by Cambridge University Press:  25 May 2016

S. Philllipps  and
S.P. Driver
S. Philllipps
Affiliation:
Department of Physics, University of Bristol, Bristol, UK
S.P. Driver
Affiliation:
Department of Physics & Astronomy, Arizona State University

Extract

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Recent redshift surveys (eg. Colless et al. 1993) have shown that the excess galaxies seen in faint B band number counts are not evolved giants at high redshift, but low to moderate luminosity objects at modest redshifts. This led to the suggestion (eg. Cowie et al. 1991) that there was once an extra population of dwarfs which has now disappeared, ie. there is nonconservation of galaxy number. We have investigated a picture in which the dwarfs have merely faded to become very low surface brightness galaxies like those now turning up in nearby clusters (eg. Turner et al. 1993).

Type
Poster Papers
Information
Symposium - International Astronomical Union , Volume 171: New Light on Galaxy Evolution , 1996 , pp. 431
Copyright
Copyright © Kluwer 1996 

References

Colless, M.M. et al., 1993, MNRAS, 261, 19 Google Scholar
Cowie, L.L., Songaila, A., Hu, E.M., 1991, Nature, 354, 400 CrossRefGoogle Scholar
Phillipps, S., Driver, S.P., 1995, MNRAS, 274, 832 Google Scholar
Turner, J.I., Phillipps, S., Davies, J.I., Disney, M.J., 1993, MNRAS, 261, 39 CrossRefGoogle Scholar