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Linear interpolation

Reducing IFS cubes in IRAF with a single interpolation - Ryan Houghton & SWIFT Team (Poster #4). Latest SWIFT software Can reduce IFU cubes in IRAF with only one interpolation of data Under-sampled objects have huge variance in output FWHM

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Linear interpolation

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  1. Reducing IFS cubes in IRAF with a single interpolation - Ryan Houghton & SWIFT Team (Poster #4) • Latest SWIFT software • Can reduce IFU cubes in IRAF with only one interpolation of data • Under-sampled objects have huge variance in output FWHM • Pixel correlations minimized by using one interpolation • Choice of interpolation scheme as important as minimizing number of interpolations! • Bad pixel /cosmic ray spread is halved by using a single interpolation (Vs 3 interpols) M.I. S.I. M.I. S.I. Linear interpolation Spline interpolation M.I. S.I. M.I. S.I. • Future Ideas for IFU data reduction • Use of 2D Drizzle algorithm to combine reduced cubes? • Use of 3D Drizzle to combine raw data without extra interpolation (gemcube)? • Parallelize the reduction process (relevant to slicers; Python / Pyraf potential?) Spline interpolation Linear interpolation

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