A fast technique for the creation of large-scale high-resolution IRAS (HIRES) beam-matched images

Citation
Cr. Kerton et Pg. Martin, A fast technique for the creation of large-scale high-resolution IRAS (HIRES) beam-matched images, PUB AST S P, 113(785), 2001, pp. 872-881
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Space Sciences
Journal title
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
ISSN journal
0004-6280 → ACNP
Volume
113
Issue
785
Year of publication
2001
Pages
872 - 881
Database
ISI
SICI code
0004-6280(200107)113:785<872:AFTFTC>2.0.ZU;2-K
Abstract
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 bandpass es and between HIRES data and data at other wavelengths nontrivial. We pres ent a new, fast technique for the construction of HIRES beam-matched images that is especially well suited for the creation of large-scale (several sq uare degree) ratio maps. Other techniques for the construction of ratio map s are discussed and compared with the new algorithm. Examples of the large- scale ratio maps that can be constructed using this new technique are prese nted. The algorithm's application to the construction of multiwavelength di fference images and multicolor images is also demonstrated.