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                           XCSAO
  An IRAF package to compute cross-correlation velocities

                             by
     Doug Mink, Bill Wyatt, Guillermo Torres, Mike Kurtz
        Harvard-Smithsonian Center for Astrophysics

                        Gerry Kriss
Center for Astrophysical Sciences, Johns Hopkins University

                         John Tonry
           Massachusetts Institute of Technology

                         John Morse
                University of North Carolina

                       Stephen Levine
                  University of Wisconsin

     Here is a list of all of the SPP and Fortran routines used by
the XCSAO package, an evolved version of Gerry Kriss's XCOR package,
merged with peak fitting routines developed at the Center for Astrophysics.

In directory Xcor:
aspart.x      compute antisymmetric noise (called by xcorfit)
buffers.x     various buffer routines (called by xcorfit)
correlate.x   various correlation routines (called by xcorfit)
earlin.x      polynomial fitting (called by pkfitp, pkfitq)
pkfitc.x      fit cos(x)/(1+x^2) to cross-correlation (called by xcorfit)
pkfitp.x      fit parabola to cross-correlation (called by xcorfit)
pkfitq.x      fit quartic to cross-correlation (called by xcorfit)
pknum.x       count peaks in cross-correlation (called by xcorfit)
pkwidth.x     find max and width of cross-correlation (called by xcorfit,pkfit)
plotsubs.x    summary page subwindow plotting (called by xcplot)
rebinr.x      rebin spectrum and template (called by t_xcsao)
t_xcsao.x     main program for cross-correlation redshifts
xcarch.x      write SAO TDC archive records (called by t_xcsao)
xcmin.x       fit function to data (called by pkfitc)
xcorfit.x     compute cross-correlation and fit peak (called by t_xcsao)
xcplot.x      Plot summary page, handle cursor interaction (called by t_xcsao)
xcrslts.x     summarize results to log file (called by t_xcsao)

In directory Util:
apodize.x     apodize spectrum and template (called by xcorfit)
bcv.f         compute barycentric velocity (called by compbcv)
chopper.c     emission line removal (called by emchop)
compbcv.x     compute barycentric velocity (called by getspec, gettemps)
emchop.x      emission line removal (called by t_xcsao)
fourm.x       Bill Press's fft routines (called by xcorfit)
getimage.x    read spectrum from IRAF image file (called by getspec, gettemps)
getspec.x     read spectrum (called by t_xcsao)
gettemps.x    read templates (called by t_xcsao)
imgpar.x      read parameters from IRAF image headers (called by getimage)
matinv.x      invert matrix (called by xcmin)
plotspec.x    plot spectrum (called by t_xcsao, xcorfit)
polfit.x      polynomial fitting routines (called by polyfunc)
polyfunc.c    polynomial routines (called by chopper)
replot.x      replot current array (called by plotspec)