File: emplot.hlp

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.help emplot July2008 rvsao
.ih
NAME
emplot -- Use EMSAO to plot a spectrum with lines labelled
.ih
USAGE
emplot spectra
.ih
PARAMETERS

.ls spectra = ""
List of file names of spectra to plot
.le
.ls specband = 0
Spectrum band to plot. If 0, plot the first or only spectrum in the file.
.le
.ls specnum = ""
Spectrum aperture range to plot
.le
.ls specdir = ""
Directory for spectrum to plot
.le
.ls emlines = "emlines.dat"
File of emission lines to label.
.le
.ls ablines = "ablines.dat"
File of absorption lines to label.
.le
.ls linedir = "rvsao$lib/"
Directory for lines to label
.le
 
.ih
DESCRIPTION
EMPLOT runs EMSAO without fitting lines in the spectrum and displays
the spectrum with lines labelled and previously-obtained results, if any.
Type "q" to go on to the next spectrum in a list.
Type "?" or space to get a menu of cursor commands.

.ih
CURSOR COMMANDS
.nf
 a  Set redshift guess from absorption line
 b  Set blue limit of line search
 c  Change continuum parameters
 d  Delete data between 1st and 2nd positions
 e  Set redshift guess from emission line
 f  Refit redshift
 g  Number of times to smooth plotted spectrum
 h  Toggle print of heading with filename and redshift
 i  Change initial velocity for search
 j  Conditional velocity
 k  Plot continuum-subtracted spectrum
 l  Line search parameters
 m  Number of times to smooth fit spectrum
 n  Disapprove velocity
 o  Turn line labelling on and off
 p  Replot current graph
 q  Leave plot
 r  Set red limit of line search
 s  Set VELOCITY to a specific value
 t  Switch template for correlation velocity
 u  Unzoom
 v  Plot at e>mission x>correlation c>ombined velocity
 w  Show rest and observed wavelengths
 x  Plot correlation if available or exit
 y  Approve velocity
 z  Zoom between 1st and 2nd positions
 .  Cancel delete or zoom
 /  Toggle plot between full screen and lines
 +  Add emission line to fit
 -  Subtract emission line from fit
 (  Plot previous aperture or order
 >  Plot next aperture or order
 @  Make hard copy of screen
 ?  Display this menu
.fi
.ih
EXAMPLES
To plot a spectrum,

        cl> emplot galaxy.ms.fits

To plot a whole night's worth of spectra:

        cl> emplot @nite1.ls

.ih
BUGS
.endhelp