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Found: High Surface Brightness Compact Galaxies

Published online by Cambridge University Press:  12 April 2016

M.J. Drinkwater
Affiliation:
Physics, University of New South Wales, Sydney 2052, Australia
S. Phillipps
Affiliation:
Physics, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
J.B. Jones
Affiliation:
Physics, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
M.D. Gregg
Affiliation:
IGPP, Lawrence Livermore Lab., L-413, Livermore, CA 94550, USA
Q.A. Parker
Affiliation:
Anglo-Australian Observatory, Coonabarabran, NSW 2357, Australia
R.M. Smith
Affiliation:
Physics & Astronomy, University of Wales, Cardiff CF2 3YB, UK
J.I. Davies
Affiliation:
Physics & Astronomy, University of Wales, Cardiff CF2 3YB, UK
E.M. Sadler
Affiliation:
School of Physics, University of Sydney, NSW 2006, Australia

Abstract

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We are using the 2dF spectrograph to make a survey of all objects (“stars” and “galaxies”) in a 12 deg2 region towards the Fornax cluster. We have discovered a population of compact emission-line galaxies unresolved on photographic sky survey plates and therefore missing in most galaxy surveys based on such material. These galaxies are as luminous as normal field galaxies. Using Hα to estimate star formation they contribute at least an additional 5% to the local star formation rate.

Type
Low Surface Brightness galaxy surveys
Copyright
Copyright © Astronomical Society of the Pacific 1999

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