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Colour Equations for Techpan Films

Published online by Cambridge University Press:  25 May 2016

D.H. Morgan and
Q.A. Parker
D.H. Morgan
Affiliation:
Royal Observatory Edinburgh
Q.A. Parker
Affiliation:
Anglo-Australian Observatory

Extract

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The UK 1.2m Schmidt Telescope (UKST) at Siding Spring Observatory in Australia has been routinely using panchromatic Tech-Pan emulsion on film as a detector since 1992. Details of how the telescope was adapted to take film and how hypersensitization techniques have been modified for film have been described by Parker (1992). The film has a much finer grain than its equivalent spectroscopic emulsion on glass (IIIa-F) and consequently records images typically one magnitude fainter than IIIa-F when properly hypersensitized. The improved depth, resolution and low noise also permit better differentiation between stars and galaxies (see Parker et al. 1994). Consequently Tech-Pan film has become one of the most useful and commonly used emulsions at the UKST for a variety of passbands and may in time be used for a full or partial sky survey.

Information

Type
Part 7. Data Processing Techniques
Information
Symposium - International Astronomical Union , Volume 179: New Horizons from Multi-Wavelength Sky Surveys , 1998, pp. 374 - 375
Copyright
Copyright © Kluwer 1998 

References

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Parker, Q.A. (1992) Kodak Tech Pan Estar-based emulsion, AAO Internal Report.Google Scholar
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