Extrapolation into the blue

Forums Spectroscopy What wavelength error is acceptable with an Alpy? Extrapolation into the blue

Dr Andrew Smith

I had a play with Excel and fitted the data to different orders all were good fits but you can see the difference in the extrapolation into the blue. Order 1 fitted at R=0.9998 ,orders 2,3,4 fitted to R=1 the graphs are order 1,3,4. The blue line is the fitted data and red the extrapolation using the ISIS fit.

Regards Andrew