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HIRAS: High-Resolution IRAS Images

Published online by Cambridge University Press:  19 July 2016

Tj. Romke Bontekoe  and
Do Kester
Tj. Romke Bontekoe
Affiliation:
European Space Agency - ESTEC, Astrophysics Division, Postbus 299, 2200 AG Noordwijk, The Netherlands
Do Kester
Affiliation:
Laboratory for Space Research, Postbus 800, 9700 AV Groningen, The Netherlands

Extract

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The InfraRed Astronomical Satellite (IRAS) all-sky survey was designed and optimized for the detection of point sources. This allowed the survey to be conducted in the form of narrow strip scans with redundant coverage of the sky, but with non-uniform covering densities. The data shows in addition to point sources many sources of extended emission, which are best analyzed from images. However, the non-uniform coverage now forms a significant obstacle in the image (re-)construction. Low resolution images, such as in the Infrared Sky Survey Atlas, yield spatial resolutions of 5–10 times the IRAS telescope diffraction limit; HIRAS improves this to 1–2 times!

Type
Imaging Results: Optical and Infrared
Information
Symposium - International Astronomical Union , Volume 158: Very High Angular Resolution Imaging , 1994 , pp. 422
Copyright
Copyright © Kluwer 1994