Found: High Surface Brightness Compact Galaxies

(2)University of Bristol; (3)IGPP; (4)Anglo-Australian Observatory; (5)University of Wales; (6)University of Sydney); Cardiff; E. M. Sadler (6) ((1)University of New South Wales; J. B. Jones (2); J. I. Davies (5); Lawrence Livermore National Laboratory

arxiv: astro-ph/9810294 · v1 · submitted 1998-10-20 · 🌌 astro-ph

Found: High Surface Brightness Compact Galaxies

M. J. Drinkwater (1) , S. Phillipps (2) , J. B. Jones (2) , M. D. Gregg (3) , Q. A. Parker (4) , R. M. Smith (5) , J. I. Davies (5) , E. M. Sadler (6) ((1)University of New South Wales

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(2)University of Bristol (3)IGPP Lawrence Livermore National Laboratory (4)Anglo-Australian Observatory (5)University of Wales Cardiff (6)University of Sydney)

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keywords galaxiescompactformationstarsurveyadditionalbrightnesscent

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We are using the 2dF spectrograph to make a survey of all objects (`stars' and `galaxies') in a 12 sq.deg 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 H-alpha to estimate star formation they contribute at least an additional 5 per cent to the local star formation rate.

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Found: High Surface Brightness Compact Galaxies

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