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r2 - 20 Jun 2007 - 16:53:25 - Main.jill
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Notes_For_Datapipeline
1. Translating from fits to MEF and back again
:
In iraf,
mkmsc
Makes MEF from flat format
mscsplit
Splits MEF to separate images
2. IRAF based routines:
Data is taken in IRAF based environment, observers are familiar with it:
imred.echelle does most of what we want.
mtools
MIKE's spectra have tilted skylines.
Jack Baldwin has a description of how to deal with tilted skylines in iraf and reduce MIKE data generally:
mtools
, see LCO web page.
He also has a CR zapper.
3. MAKEE and descendants
HIRES data is reduced by MAKEE, by Tom Barlow
ESI reduction package
4. IDL based pipelines:
MIKE REDUX by Jason Prochaska and Scott Burles, see
website
HIRES REDUX, by Jason Prochaska, see Keck HIRES web site
5. OTHER:
Rodger Thompson's IDL based software
UVES pipeline (black box; not adaptable)
"Bechraf"
6. ISSUES to deal with:
optimal sky subtraction strategy (very small slits)
tilted sky lines? use DEEP2 strategy for sky subtraction?
optimal extraction strategy
cosmic ray removal (Pieter van Dokkum laplacian edge finder? Rhoads? See Farrage and Pimblet 2005)
scattered light (interorder fit; model a la STIS)
th-ar line list; optimal wavelength calibration/rebinning scheme; well-culled list
novel flat-field w/ LEDs
strategies for very high s/n
splicing orders
velocity stability
measurement of spectral line shape -- with star v. lamp
-- Main.jill - 20 Jun 2007
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