A Fast Technique for the Creation of Large‐Scale High‐ResolutionIRAS(HIRES) Beam‐matched Images
| Autor: | Peter G. Martin, C. R. Kerton |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Physics
010504 meteorology & atmospheric sciences business.industry Image quality Astrophysics (astro-ph) Resolution (electron density) FOS: Physical sciences High resolution Astronomy and Astrophysics Astrophysics 01 natural sciences Square (algebra) Wavelength Space and Planetary Science 0103 physical sciences Computer vision Artificial intelligence business Scale (map) 010303 astronomy & astrophysics Beam (structure) 0105 earth and related environmental sciences |
| Zdroj: | Publications of the Astronomical Society of the Pacific. 113:872-881 |
| ISSN: | 1538-3873 0004-6280 |
| DOI: | 10.1086/322138 |
| Popis: | HIRES processing provides a significant improvement in both resolution and image quality over previous IRAS image products, but the characteristics of the HIRES beam make accurate comparisons between the various IRAS bandpasses and between HIRES data and data at other wavelengths non-trivial. We present a new, fast technique for the construction of HIRES beam-matched images that is especially well suited for the creation of large-scale (several square degrees) ratio maps. Other techniques for the construction of ratio maps are discussed and compared with the new algorithm. Examples of the large-scale ratio maps that can be constructed using this new technique are presented. The algorithm's application to the construction of multiwavelength difference images and multi-colour images is also demonstrated. accepted for publication in PASP, July 2001 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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