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Enhancement of Faint Images from UK Schmidt Telescope Plates

Published online by Cambridge University Press:  12 April 2016

B.W. Hadley
B.W. Hadley*
Affiliation:
Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ

Extract

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The UK Schmidt Telescope has taken several thousand photographs especially on fine grain Eastman Kodak IIIa-J and IIIa-F emulsions (see Cannon, 1984) which were hypersensitised before exposure in the telescope to improve their ability to record very faint signals.

Relatively little work has been done on further post-processing techniques to enhance photographically the faint signal from sources very near to the sky background level. Work is currently being undertaken by Malin (AAO) and others including staff at ROE to enhance faint photographic signals without a corresponding increase in noise, either by making high contrast enlargements from small areas of the original plate, or by making contact copies of the whole plate onto high contrast line material.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 78: Astronomy with Schmidt-type telescopes , 1984 , pp. 73 - 76
Copyright
Copyright © Reidel 1984

References

Campbell, A.W.: 1982, Observatory 102, 195.Google Scholar
Cannon, R.D.: 1984, this volume, p. 25.CrossRefGoogle Scholar
Dawe, J.A.: 1984, this volume, p. 193.CrossRefGoogle Scholar
Malin, D.F.: 1977, ASS Photobulletin No. 16, p. 10.Google Scholar
Malin, D.F.: 1978a, ‘Modern Techniques in Astronomical Photography’, ed. West, & Eudier, , p. 107.Google Scholar
Malin, D.F.: 1984, This Volume.Google Scholar
URSTU Handbook: 1980, p. 5.10.Google Scholar